The Unofficial AMD K6-2+ / K6-III+ page

CPU Upgrade:
Getting the AMD K6-2+ / K6-III+ to work on your Super Socket 7 board.

by Jan Steunebrink
Last updated on September 24, 2024

Introduction

The latest, and probably last, editions to the Socket 7 scene are AMD's K6-2+ and K6-III+ CPUs. Although AMD designed these CPUs for the mobile market, they will work in compatible desktops as well. For details about these CPUs, see AMD's web-site.
Availability of these CPUs may be a problem now most stocks are depleted. So you may have to revert to the second-hand market or to internet auction houses like eBay.

To be able to run these babies in your desktop, the motherboard should have the following features:

Selection for 2.0V or 2.1V CPU Core Voltage
100MHz Front Side Bus
K6-2+/III+ BIOS support
And it would be nice if the BIOS has a fix for the 32GB HDD limit bug as well.

CPU Core Voltage

The K6-2+/III+ CPU core is designed to run on 2.0V but also runs well on 2.1V.
The absolute maximum Vcore rating is 2.2V, but this is already stressing the CPU and will probably shorten its life span.
On motherboards with 4 Vcore jumpers, the lowest possible Vcore setting of 2.0V is usually selected by taking all 4 jumpers off. I have found that several boards didn't work with this setting and that the next higher setting of 2.1V had to be used to properly run the K6-2+/III+.
There are also (ultra) low power 1.6V - 1.8V versions of the K6plus, designed for embedded fan-less applications. I believe that these low voltage versions use the same 0.18 micron die as the faster 2.0V models and experience shows that they will run fine at 2.0V or 2.1V as well. However when run at 2.0V, they will behave like other K6plus 2.0V versions and will need a cooler/fan, but they will also run faster then.

Front Side Bus

The K6-2+/III+ CPUs are designed for a 100MHz FSB but can also run on a lower busspeed. Because the maximum multiplier for these CPUs is 6, you are limited to 500MHz on a 83MHz FSB, 450MHz on a 75MHz FSB, and 400MHz on a 66MHz FSB.
Unfortunately, boards without 100MHz support have almost never K6-2+/III+ BIOS support and the older 66/75 MHz boards often lack the 2.0V or 2.1V Vcore setting. So this page focuses mainly on support for the 100MHz Super Socket 7 platform, but I will include other boards when possible.

K6plus BIOS Support

Below are two tables with Socket 7 board BIOSes. The first table lists BIOSes that already have K6-2+/III+ support as provided by the motherboard manufacturer. Because most manufacturers pages for these socket 7 boards are gone now, the Download link allows you to download the BIOS directly from this site.
This list is followed by a second table that lists boards for which a Patched BIOS is available.

If you have a board for which no K6plus aware BIOS is available, or if you don't want to use a patched BIOS, there are other solutions to get the K6-2+/III+ running. Read this Tyan S1590 and the AMD K6-III+ article by Michael McCarrick for further information. The findings presented here will work on most motherboards.

Note that if you want to run a K6plus on a board with the Intel 430TX, 430VX, ALi Aladdin IV(+), or SiS5582 chipset, you may have to set "System BIOS Cacheable" in the CMOS Setup to "Disable" to get it working.

The Award BIOS 32GB HDD limit bug

Apart from K6-2+/III+ support, most BIOSes in the below lists will also have a fix for the 32GB HDD limit bug.

The story:
In 1996/1997, Award Software Inc. put the Interrupt 13h extensions with 28-bit LBA support in their BIOSes. This was done to break the 8GB HDD barrier, so that IDE drives up to 128GB could be supported. But they overlooked a bug that caused the BIOS to hang during POST when a 32GB or larger drive was attached. Later on, also a 64GB limit bug was discovered.
Initially, these bugs went unnoticed but became apparent when 40GB and larger drives came on the market.

The official fix:
Finally, in its September 1999 and later BIOS releases, Award properly fixed these bugs and provided native 128GB HDD support. This fix allowed even larger drives up to 640GB to be attached but the BIOS then only "sees" the first 128GB of that drive due to the limits of the LBA28 interface.

But there is a workaround for this 128GB limit for these late 1999/2000-2003 Award BIOSes. When all code and data to boot the OS is placed in a partition below the 128GB limit, the whole drive can be accessed by a 48-bit LBA capable OS after bootup! (Like Win2000 with SP3 or higher, WinXP with SP1 or higher, Vista or later, or Linux with kernel 2.4.19 or later.)

Note that to fully break the 128GB barrier, you need a BIOS with 48-bit LBA support but these came later in 2004, after the ATA-6 specification was published in 2003. This was too late for the Socket 7 platform and I have never seen an LBA48 BIOS update for socket 7.

All Award BIOSes, except one (Biostar M5ALC), in the first "K6plus BIOS List" below have the HDD limit bugs fixed by Award and fully support these 128GB(640GB) drives.

The community fix:
Back in 2002, when I learned that another BIOS patcher found a fix for the infamous Award 32GB HDD limit bug, I started to use that fix in my patched K6+ BIOSes as well. His name is Petr Soucek and he uses a simple and elegant 15 bytes patch to fix this bug.
He also describes a more elaborate patch for the 64GB limit bugs that I am using as well. An archived version of his website, with a detailed explanation, can be found at web.archive.org/web/20071114220315/http://www.ryston.cz/petr/bios/

These same patches are also used in all patched BIOSes by the Wimsbios team, and team member Rainbow still has these BIOSes available at http://wims.rainbow-software.org/

However, all these patched BIOSes hang during POST when a drive with 267,386,880 or more sectors (127.5GB) is attached. This new limit is a side-effect of the code used in the patch and coincides nicely with the 28-bit LBA limit. So this was of no consequence at the time, until bigger drives (with 48-bit LBA support) like 160GB and 200GB came on the market.

A new community fix:
In 2007 I started looking into the code that Award itself used to fix the 32GB limit bug in late 1999/2000 BIOSes, and I found a way to use this logic to make a new bugfix for 1997/98/99 Socket 7 BIOSes. This new 32GB bugfix uses 32-bit arithmetic (instead of 16-bit) to do the calculations, thereby avoiding a divide overflow at 127.5GB. The new limit for this fix is 640GB, just like in Awards official fix, although the BIOS will still only 'see' the first 127.5GB due to the 28-bit LBA limitation.

After testing this new 32GB bugfix for quite a while, I have now put it in several patched BIOSes. In the Patched BIOS list below, you can recognize these BIOSes by a 128GB(640GB) indication in the Remarks column.

CAUTION: Always follow the BIOS flash procedure from the motherboard manufacturer.

K6plus BIOS List

Manufacturer Model BIOS Rev. BIOS Date Download link Remarks

Acorp 5ALI61 (1Mb) VER:1.5 02/20/2001 5ALI61V15.ZIP This is a beta BIOS from Acer for the 5ALI61 boards with 1Mbit (128KB) flash chip. This BIOS will also work on the RedFox AGP-ALI board but it lacks the option to boot from SCSI first. A patched RedFox VER:1.4 BIOS is available. See the Patched BIOS list below.

Acorp 5ALI61 (2Mb) VER:2.2_33
VER:3.3_66 11/02/1999
02/02/2000 V2.2_33.EXE
V3.3_66.EXE These BIOSes are for 5ALI61 boards with 2Mbit (256KB) flash chip.
Use the ver 2.x BIOS if your board has an M1543C-A1 southbridge. The ver 3.x BIOS is meant for the M1543C-B1 southbridge.

Amptron PM-599LMR 09/30/2000S 09/30/2000 M599LMR_2K0930S.ZIP This board is the same as the PCChips M599LMR and uses the same BIOS.
There is also a 12/22/2000S (2K1222S or 1K1222L with full-screen Amptron logo) Release, but reports indicate that you need the EN29F002NT flashchip for this BIOS. For other flashchips it is better to use the 09/30/2000S BIOS.

AOpen AX59 PRO R2.35 07/12/2000 AX59P235.EXE

AOpen MX59 PRO (II) R1.27 07/26/2000 MX59P127.ZIP

Asus P5A 1011 Beta 005 05/02/2002 1011-005.ZIP Due to a hardware problem, P5A Rev 1.05 and 1.06 will work extremely slow with a K6plus CPU.

Asus P5A-B 1011 Beta 005 05/02/2002 1011b005.ZIP 1011bn005.ZIP Due to a hardware problem, P5A-B Rev 1.05 will work extremely slow with a K6plus CPU. The 1011bn BIOS is for boards without sound.

ATrend ATC 5010M VER:1.0r10A 12/28/1999 501010A.ZIP

ATrend ATC 5220 2.0 01 GS 10/18/1999 5220201A.ZIP

Azza PT-5VMD 09/27/2000 09/27/2000 5VMD.ZIP

Azza PT-5VMX 07/04/2000 07/04/2000 5VMX.ZIP

BCM VP1541/1543 1.08 03/14/2000 VP1541-108.ZIP The VP1543-108.ZIP file for the VP1543 is identical to this one.

Biostar M5ALC ALC0131B 01/31/2000 ALC0131B.EXE The harddisk support in this BIOS is limited to 32GB. A patched and tested ALC0131B BIOS with 128GB support can be found at Award BIOSes - 32GB and 64GB bugs patched!

Biostar M5SAA SAA0727F 07/27/2000 SAA0727F.EXE

Chaintech 5AGM2 11/02/1999 11/02/1999 5AGM2B02.EXE

Chaintech 5ATA 10/15/1999 10/15/1999 5ATA0A15.EXE

Commate S7AX VER:3.0
VER:3.0A 05/16/2000
05/26/2000 S7AX30.ZIP
S7AX30A.ZIP The VER: 3.0A BIOS is for upgrading a VER:2.7A. The difference between a normal and an A version is unknown.

DFI K6BV3+ 01/15/2001 BK6BA0115.ZIP This beta BIOS is for the K6BV3+ Rev A boards.

DFI K6XV3+ 01/15/2001 BK6XA0115.ZIP This beta BIOS is for the K6XV3+ Rev A boards.

DFI K6BV3+/66
K6XV3+/66 04/12/2000 K6XV30412.ZIP This BIOS is for both the K6BV3+/66 and K6XV3+/66 boards.

DFI P5BV3+ Rev A
P5BV3+ Rev B
P5BV3+ Rev C 11/30/2000 BP5BA1130.ZIP
BP5BB1130.ZIP
BP5BC1130.ZIP There are 3 different versions of this beta BIOS. One for each Rev (A, B, or C) of this board.

Epox EP-MVP3C
EP-MVP3C2
EP-MVP3G-M (2Mb)
EP-MVP3G2
EP-MVP3G5 12/21/2000 12/21/2000 VP3C0C21.EXE The EP-MVP3G-M with 1 Mbit flash chip has to be upgraded to a 2Mbit chip to be able to use this BIOS. Check the Epox web-site for more details.

Epox EP-58MVP3C-M 04/11/00 04/11/2000 VP300411.EXE

FIC PA-2013 JI4333 01/11/2001 JI4333.ZIP This is a beta BIOS

FIC PAG-2130 SA4124
SB4124 01/10/2001
01/10/2001 SA4124.ZIP
SB4124.ZIP The SA4124 BIOS is for board Rev. 1.2/1.3.
The SB4124 BIOS is for board Rev. 1.3A/2.0.
These are beta BIOSes

FIC VA-503+ JE4333 01/11/2001 JE4333.ZIP This is a beta BIOS

FIC VA-503A JN4116 (with Audio) JO4116 (No Audio) 08/02/2000 JN4116.ZIP
JO4116.ZIP This is a beta BIOS

Gigabyte GA-5AA F7b 10/25/00 5AA_I_F7B.ZIP The F7b is a beta BIOS (AMI). Note that the F6 BIOS has full K6plus support as well, and is reported to work better on a GA-5AA ver 2.2 board.

Gigabyte GA-5AX F4 09/19/2000 5AX_F4.ZIP

Gigabyte GA-5SMM F3 05/09/2000 5SMM_F3.ZIP

IWILL XA100Plus 32211A 10/27/1999 XAP1027.EXE

Jetway J-530BF E12 04-12-2001 04/12/2001 530BFE12.ZIP This BIOS supports K6plus but doesn't enable Write-Allocation on any K6.

Jetway J-542B
J-542BS D06 10-25-2000 10/24/2000 542BD06.ZIP This BIOS supports K6plus but doesn't enable Write-Allocation on any K6.
A patched BIOS with WA support is available. See the Patched BIOS list below.

Jetway J-542C
J-542CS D06 10-25-2000 10/24/2000 542CD06.ZIP This BIOS supports K6plus but doesn't enable Write-Allocation on any K6.
A patched BIOS with WA support is available. See the Patched BIOS list below.

Lucky Tech
(Shing Yunn Enterprises) P5MVP3 Rev:D 06/14/2000 MVP3_D.BIN

Lucky Star 5MVP3 Rev:4.0 #LEB9-01 04/25/2001 LEB9-1.ZIP This BIOS is for Rev:4.0 or later boards.
For the 5MVP3 Rev;2.x a patched BIOS is available. See the Patched BIOS list below.

Micronics C200 1.08 03/14/2000 VP1541-108.ZIP Use this BCM VP1541 BIOS for the C200

MicroStar MS-5169 V4.0 V3.5 06/27/2000 A5169V35.EXE This BIOS is only for the version 4.0 boards.
Note that the revision 3.6 and 3.7 BIOSes for this board do not have any K6plus support.

MicroStar MS-5184 V1.3B3 121100 W5184VMS133.ZIP This is a beta BIOS from MSI Tech support.

MicroStar MS-5191 V1.5 122799 A5191V15.EXE

PCChips M585LMR 11/20/2000S 11/20/2000 2K1120S.ZIP

PCChips M598 V5/7/8/9 05/19/2000S 05/19/2000 M598LMRv1_2K0519.ZIP This is the M598LMR v1.x BIOS but it works fine on the M598 V5/7/8/9 as well.

PCChips M598LMR V1.x
M598LMR V5
M598LMR V6 05/19/2000S
09/30/2000S
05/31/2000S 05/19/2000
09/30/2000
05/31/2000 M598LMRv1_2K0519.ZIP
M598LMRv5_2K0930S.ZIP
M598LMRv6_2K0531S.ZIP

PCChips M599LMR 09/30/2000S 09/30/2000 M599LMR_2K0930S.ZIP There is also a 12/22/2000S (2K1222S) Release, but reports indicate that you need the EN29F002NT flashchip for this BIOS. For other flashchips it is better to use the 09/30/2000S BIOS.

PCPartner/Vtech MVP3BS7-954 BIOS-I-2M (91027)
BIOS-S-2M (91027) 10/26/1999
10/27/1999 P954-2M.ZIP These BIOSes are for P954 boards with 2Mbit flash chip. Select the correct BIOS depending on the Super IO chip installed (ITE or SMC).

RedFox AGP-ALI (2Mb)
VER:2.2_33
VER:3.3_66 11/02/1999
02/02/2000 AGP-ALID.ZIP
AGP-ALI6.ZIP These BIOSes are for AGP-ALI boards with 2Mbit (256KB) flash chip.
Use the ver 2.x BIOS (agp-alid) if your board has an M1543C-A1 southbridge. The ver 3.x BIOS (agp-ali6) is meant for the M1543C-B1 southbridge.
A BIOS for AGP-ALI boards with 1Mbit (128KB) flashchip is also available. See the Patched BIOS list below.

Shuttle HOT-591P 591PS024 01/31/2001 591PS024.ZIP A pached 591PWIQH BIOS also available. See the Patched BIOS list below.

Shuttle HOT-597 5970S02Z 03/16/2001 5970S02Z.ZIP

Soltek SL-54U5 REV MVP3-A11b 03/03/2000 54U5A11B.ZIP

Soltek SL-56H5/56H1 REV M1 03/23/2000 56H-M1.ZIP

Soyo SY-5EHM 5EH Family-1DA1
5EH V1.3-1DA2 05/16/2000
05/16/2000 5EH1DA1.ZIP
EH131DA2.ZIP There are different versions of the 5EHM. The EH131DA2 BIOS is for the 5EHM V1.3 board only!

Soyo SY-5EMA EMA-1EA1 05/11/2000 5EMA1EA1.ZIP

Soyo SY-5EMA+ 5EMA+ Family-1EA1 05/11/2000 5EMPVEA1.ZIP

Soyo SY-5SSM SSM-2DB1 12/16/19999 5SSM2DB1.ZIP

Superpower SP-A586B VER:A.9 11/29/1999 A586B-A9.ZIP This BIOS supports K6plus but doesn't enable Write-Allocation on any K6.
A patched BIOS with WA support is available. See the Patched BIOS list

TMC TI5VGA -E3-1221 12/21/1999 TI5VGAE3.ZIP

TMC TI5VGF -H7-0330 03/24/2000 TI5VGFH7.ZIP This is a beta BIOS

Tyan S1598 v1.06c
v1.06e 10/04/1999
03/06/2000 V98W106C.EXE
1598106E.ZIP The v1.06e is a beta BIOS from Tyan and is supposed to have better Win2K/XP support.

Patched BIOS
Below is the list of BIOSes I have patched to include proper K6-2+/III+ support. These BIOSes can be downloaded here and come with a text-file with more information. Please read this file before you flash the BIOS.
Where possible, I've fixed the 32GB Harddisk limit bug in these BIOSes as well. If so, this is clearly indicated in the Remarks column of the table below.

**K6plus BIOS List**
Manufacturer	Model	BIOS Rev.	BIOS Date	Download link	Remarks
Acorp	5ALI61 (1Mb)	VER:1.5	02/20/2001	5ALI61V15.ZIP	This is a beta BIOS from Acer for the 5ALI61 boards with 1Mbit (128KB) flash chip. This BIOS will also work on the RedFox AGP-ALI board but it lacks the option to boot from SCSI first. A patched RedFox VER:1.4 BIOS is available. See the Patched BIOS list below.
Acorp	5ALI61 (2Mb)	VER:2.2_33 VER:3.3_66	11/02/1999 02/02/2000	V2.2_33.EXE V3.3_66.EXE	These BIOSes are for 5ALI61 boards with 2Mbit (256KB) flash chip. Use the ver 2.x BIOS if your board has an M1543C-A1 southbridge. The ver 3.x BIOS is meant for the M1543C-B1 southbridge.
Amptron	PM-599LMR	09/30/2000S	09/30/2000	M599LMR_2K0930S.ZIP	This board is the same as the PCChips M599LMR and uses the same BIOS. There is also a 12/22/2000S (2K1222S or 1K1222L with full-screen Amptron logo) Release, but reports indicate that you need the EN29F002NT flashchip for this BIOS. For other flashchips it is better to use the 09/30/2000S BIOS.
AOpen	AX59 PRO	R2.35	07/12/2000	AX59P235.EXE
AOpen	MX59 PRO (II)	R1.27	07/26/2000	MX59P127.ZIP
Asus	P5A	1011 Beta 005	05/02/2002	1011-005.ZIP	Due to a hardware problem, P5A Rev 1.05 and 1.06 will work extremely slow with a K6plus CPU.
Asus	P5A-B	1011 Beta 005	05/02/2002	1011b005.ZIP 1011bn005.ZIP	Due to a hardware problem, P5A-B Rev 1.05 will work extremely slow with a K6plus CPU. The 1011bn BIOS is for boards without sound.
ATrend	ATC 5010M	VER:1.0r10A	12/28/1999	501010A.ZIP
ATrend	ATC 5220	2.0 01 GS	10/18/1999	5220201A.ZIP
Azza	PT-5VMD	09/27/2000	09/27/2000	5VMD.ZIP
Azza	PT-5VMX	07/04/2000	07/04/2000	5VMX.ZIP
BCM	VP1541/1543	1.08	03/14/2000	VP1541-108.ZIP	The VP1543-108.ZIP file for the VP1543 is identical to this one.
Biostar	M5ALC	ALC0131B	01/31/2000	ALC0131B.EXE	The harddisk support in this BIOS is limited to 32GB. A patched and tested ALC0131B BIOS with 128GB support can be found at Award BIOSes - 32GB and 64GB bugs patched!
Biostar	M5SAA	SAA0727F	07/27/2000	SAA0727F.EXE
Chaintech	5AGM2	11/02/1999	11/02/1999	5AGM2B02.EXE
Chaintech	5ATA	10/15/1999	10/15/1999	5ATA0A15.EXE
Commate	S7AX	VER:3.0 VER:3.0A	05/16/2000 05/26/2000	S7AX30.ZIP S7AX30A.ZIP	The VER: 3.0A BIOS is for upgrading a VER:2.7A. The difference between a normal and an A version is unknown.
DFI	K6BV3+		01/15/2001	BK6BA0115.ZIP	This beta BIOS is for the K6BV3+ Rev A boards.
DFI	K6XV3+		01/15/2001	BK6XA0115.ZIP	This beta BIOS is for the K6XV3+ Rev A boards.
DFI	K6BV3+/66 K6XV3+/66		04/12/2000	K6XV30412.ZIP	This BIOS is for both the K6BV3+/66 and K6XV3+/66 boards.
DFI	P5BV3+ Rev A P5BV3+ Rev B P5BV3+ Rev C		11/30/2000	BP5BA1130.ZIP BP5BB1130.ZIP BP5BC1130.ZIP	There are 3 different versions of this beta BIOS. One for each Rev (A, B, or C) of this board.
Epox	EP-MVP3C EP-MVP3C2 EP-MVP3G-M (2Mb) EP-MVP3G2 EP-MVP3G5	12/21/2000	12/21/2000	VP3C0C21.EXE	The EP-MVP3G-M with 1 Mbit flash chip has to be upgraded to a 2Mbit chip to be able to use this BIOS. Check the Epox web-site for more details.
Epox	EP-58MVP3C-M	04/11/00	04/11/2000	VP300411.EXE
FIC	PA-2013	JI4333	01/11/2001	JI4333.ZIP	This is a beta BIOS
FIC	PAG-2130	SA4124 SB4124	01/10/2001 01/10/2001	SA4124.ZIP SB4124.ZIP	The SA4124 BIOS is for board Rev. 1.2/1.3. The SB4124 BIOS is for board Rev. 1.3A/2.0. These are beta BIOSes
FIC	VA-503+	JE4333	01/11/2001	JE4333.ZIP	This is a beta BIOS
FIC	VA-503A	JN4116 (with Audio) JO4116 (No Audio)	08/02/2000	JN4116.ZIP JO4116.ZIP	This is a beta BIOS
Gigabyte	GA-5AA	F7b	10/25/00	5AA_I_F7B.ZIP	The F7b is a beta BIOS (AMI). Note that the F6 BIOS has full K6plus support as well, and is reported to work better on a GA-5AA ver 2.2 board.
Gigabyte	GA-5AX	F4	09/19/2000	5AX_F4.ZIP
Gigabyte	GA-5SMM	F3	05/09/2000	5SMM_F3.ZIP
IWILL	XA100Plus	32211A	10/27/1999	XAP1027.EXE
Jetway	J-530BF	E12 04-12-2001	04/12/2001	530BFE12.ZIP	This BIOS supports K6plus but doesn't enable Write-Allocation on any K6.
Jetway	J-542B J-542BS	D06 10-25-2000	10/24/2000	542BD06.ZIP	This BIOS supports K6plus but doesn't enable Write-Allocation on any K6. A patched BIOS with WA support is available. See the Patched BIOS list below.
Jetway	J-542C J-542CS	D06 10-25-2000	10/24/2000	542CD06.ZIP	This BIOS supports K6plus but doesn't enable Write-Allocation on any K6. A patched BIOS with WA support is available. See the Patched BIOS list below.
Lucky Tech (Shing Yunn Enterprises)	P5MVP3	Rev:D	06/14/2000	MVP3_D.BIN
Lucky Star	5MVP3 Rev:4.0	#LEB9-01	04/25/2001	LEB9-1.ZIP	This BIOS is for Rev:4.0 or later boards. For the 5MVP3 Rev;2.x a patched BIOS is available. See the Patched BIOS list below.
Micronics	C200	1.08	03/14/2000	VP1541-108.ZIP	Use this BCM VP1541 BIOS for the C200
MicroStar	MS-5169 V4.0	V3.5	06/27/2000	A5169V35.EXE	This BIOS is only for the version 4.0 boards. Note that the revision 3.6 and 3.7 BIOSes for this board do not have any K6plus support.
MicroStar	MS-5184	V1.3B3	121100	W5184VMS133.ZIP	This is a beta BIOS from MSI Tech support.
MicroStar	MS-5191	V1.5	122799	A5191V15.EXE
PCChips	M585LMR	11/20/2000S	11/20/2000	2K1120S.ZIP
PCChips	M598 V5/7/8/9	05/19/2000S	05/19/2000	M598LMRv1_2K0519.ZIP	This is the M598LMR v1.x BIOS but it works fine on the M598 V5/7/8/9 as well.
PCChips	M598LMR V1.x M598LMR V5 M598LMR V6	05/19/2000S 09/30/2000S 05/31/2000S	05/19/2000 09/30/2000 05/31/2000	M598LMRv1_2K0519.ZIP M598LMRv5_2K0930S.ZIP M598LMRv6_2K0531S.ZIP
PCChips	M599LMR	09/30/2000S	09/30/2000	M599LMR_2K0930S.ZIP	There is also a 12/22/2000S (2K1222S) Release, but reports indicate that you need the EN29F002NT flashchip for this BIOS. For other flashchips it is better to use the 09/30/2000S BIOS.
PCPartner/Vtech	MVP3BS7-954	BIOS-I-2M (91027) BIOS-S-2M (91027)	10/26/1999 10/27/1999	P954-2M.ZIP	These BIOSes are for P954 boards with 2Mbit flash chip. Select the correct BIOS depending on the Super IO chip installed (ITE or SMC).
RedFox	AGP-ALI (2Mb)	VER:2.2_33 VER:3.3_66	11/02/1999 02/02/2000	AGP-ALID.ZIP AGP-ALI6.ZIP	These BIOSes are for AGP-ALI boards with 2Mbit (256KB) flash chip. Use the ver 2.x BIOS (agp-alid) if your board has an M1543C-A1 southbridge. The ver 3.x BIOS (agp-ali6) is meant for the M1543C-B1 southbridge. A BIOS for AGP-ALI boards with 1Mbit (128KB) flashchip is also available. See the Patched BIOS list below.
Shuttle	HOT-591P	591PS024	01/31/2001	591PS024.ZIP	A pached 591PWIQH BIOS also available. See the Patched BIOS list below.
Shuttle	HOT-597	5970S02Z	03/16/2001	5970S02Z.ZIP
Soltek	SL-54U5	REV MVP3-A11b	03/03/2000	54U5A11B.ZIP
Soltek	SL-56H5/56H1	REV M1	03/23/2000	56H-M1.ZIP
Soyo	SY-5EHM	5EH Family-1DA1 5EH V1.3-1DA2	05/16/2000 05/16/2000	5EH1DA1.ZIP EH131DA2.ZIP	There are different versions of the 5EHM. The EH131DA2 BIOS is for the 5EHM V1.3 board only!
Soyo	SY-5EMA	EMA-1EA1	05/11/2000	5EMA1EA1.ZIP
Soyo	SY-5EMA+	5EMA+ Family-1EA1	05/11/2000	5EMPVEA1.ZIP
Soyo	SY-5SSM	SSM-2DB1	12/16/19999	5SSM2DB1.ZIP
Superpower	SP-A586B	VER:A.9	11/29/1999	A586B-A9.ZIP	This BIOS supports K6plus but doesn't enable Write-Allocation on any K6. A patched BIOS with WA support is available. See the Patched BIOS list
TMC	TI5VGA	-E3-1221	12/21/1999	TI5VGAE3.ZIP
TMC	TI5VGF	-H7-0330	03/24/2000	TI5VGFH7.ZIP	This is a beta BIOS
Tyan	S1598	v1.06c v1.06e	10/04/1999 03/06/2000	V98W106C.EXE 1598106E.ZIP	The v1.06e is a beta BIOS from Tyan and is supposed to have better Win2K/XP support.

Patched BIOS List

Manufacturer Model Original BIOS Patched BIOS Remarks

Abit IT5H v2.0 01/21/1998-9T coming Request beta testers for this patched BIOS
This patched BIOS adds support for all K6-2/-III models, including the K6plus. However, the lowest Vcore selection is 2.8V (board limitation), so a Voltage Regulator Adapter is needed to run the K6-2/-III/plus.

Abit IT5V v1.0 01/21/1998-CP coming Request beta testers for this patched BIOS
This patched BIOS adds support for all K6-2/-III models, including the K6plus. However, the lowest Vcore selection is 2.8V (board limitation), so a Voltage Regulator Adapter is needed to run the K6-2/-III/plus.

Abit AX5
PX5 11/13/1998-GP none I was unsuccesful patching this BIOS for K6-2/-III/-2+/-III+ support, due to unstable Vcore voltage at lower (2.0V-2.2V) settings on this jumperless board.

Abit TX5 12/03/1998-GN TX5B_J2.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

Acorp 5TX29 VER:1.3 5TX29_J2.ZIP Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

Acorp 5VIA77 VER:A5 coming Request beta testers for this patched BIOS.
Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

Amptron PM-9100C V5.0 07/02/1999 S 070299J1.ZIP This BIOS is for boards with a 1Mbit (128KB) flash chip.
CAUTION: After installing the K6+ CPU, enter the BIOS Setup at the first boot and set the 'CPU Plug and Play' option to 'User Define', and 'Vcore Voltage' at 2.0V. Not doing so may damage the CPU!

Amptron PM9900 03/09/1999 S 990309J2.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2/550 and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

AOpen AP5T AP5T R1.82 Aug.09.1999 AP5T_J2.ZIP Visit The Enhanced AP5T Home Page, a great page with AP5T-2 and AP5T-3 info.
Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

AOpen AX5T AX5T R1.92 May.28.1999 AX5T_J2.ZIP Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

Asus P/I-P55T2P4
P/I-XP55T2P4 0207-2 0207_J4.ZIP Apart from K6plus support, this patched BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB(640GB).
I have a report that the K6-2+ doesn't work on the XP55T2P4 V1.3, but later versions of this board should be okay.

Asus P/I-P55T2P4S 0206-5 0206_J2.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

Asus P/I-P55TP4XE(G) 0302 (12/30/97) TP4XE_J2.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).
Note that a VRM module or Voltage Regulator Adapter has to be added to run the K6-2/-III/plus.

Asus P/I-P55TVP4 0204 0204_J2.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
Note that the lowest Vcore selection is 2.7V (board limitation), so a Voltage Regulator Adapter is needed to run the K6-2/-III/plus.

Asus P5S-B
P5-99B 1001b25 1001B_J1.ZIP Both this patched and the original 1001b25 BIOS have full 128GB(640GB) support.

Asus P5S-VM
P5-99VM 1006 1006VMJ1.ZIP Both this patched and the original 1006 BIOS have full 128GB(640GB) support.

Asus SP97-V 0109v-5 0109V_J2.ZIP Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

Asus SP97-XV 0109xv-5 0109XVJ2.ZIP Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

Asus SP98AGP-X 0104xl-1
0104x-1 0104XLJ2.ZIP
0104X_J2.ZIP The 0104XL BIOS is for the SP98AGP-X without on-board audio and the 0104X for boards with audio.
Apart from K6plus support, these "patch J.2" BIOSes have a fix for the 32GB harddisk limit and support IDE drives upto 128GB!

Asus SP98-N 0109n-5 0109N_J2.ZIP Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

Asus TX97 0112-1 0112_J2.ZIP Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

Asus TX97-E 0112e-1 0112E_J2.ZIP Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

Asus TX97-L 0112ld-1 0112LDJ2.ZIP Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

Asus TX97-LE 0112le-1 0112LEJ2.ZIP Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

Asus TX97-X 0112x-1 0112X_J3.ZIP Apart from K6plus support, this patched BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB(640GB).

Asus TX97-XE 0112xe-1 0112XEJ2.ZIP Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

Asus TX97-XV 0112xv-1 0112XVJ2.ZIP Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

Asus TXP4 0112l-1 0112L_J3.ZIP Apart from K6plus support, this patched BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB(640GB).

Asus TXP4-X 0112el-1 0112ELJ2.ZIP Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

Asus VX97 0204v 0204V_J2.ZIP Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

Azza PT-5IT 07/17/98 W83977TF 5ITWS_J2.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).

Azza PT-5VML 07/08/1999 5VML_J1.ZIP Both this patched and the original 5vml-070899 BIOS have full 128GB(640GB) support.

BCM FR550 Rev:M07 06/22/98 coming Request beta testers for this patched BIOS.
Apart from K6plus support, this patched BIOS also supports the original K6-2/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

BCM IN5598 v1.01 (#20811) IN5598J2.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

Biostar M5ATC ATC0811B M5ATC_J2.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

Biostar M5ATD ATD0715B M5ATD_J3.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

Biostar M5SAF SAF0316F M5SAF_J1.ZIP Both this patched and the original saf0316f BIOS have full 128GB support

Biostar M5SIB v2.0 Ver. 1.06 M5SIB_J2.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

Biostar MB-8500TTD TTD0616B (06/11/98) TTD_J2.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

Chaintech 5IFM0 02/24/1997 5IFM0_J1.ZIP This patched BIOS adds support for all K6 models, including the K6plus.
Due to limitations of the linear Vcore regulator on the 5IFM0, a CPU-upgrade-adapter is needed to run the K6 series.

Chaintech 5IFM1 10/08/1997 5IFMK6WA.ZIP This patched BIOS adds support for both the original K6-2/III as well as the K6plus.
Due to limitations of the linear Vcore regulator on the 5IFM1, a CPU-upgrade-adapter is needed to run the K6 series. Or you can modify the board as described (in German) on K6-2 in IFM1

Chaintech 5RSA0 12/11/1998 5RSA0_J2.ZIP Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

Chaintech 5RSA2 10/13/1999 5RSA2_J1.ZIP Both this patched and the original 10/13/1999 BIOS have full 128GB(640GB) support.

Chaintech 5SIM 08/07/1998 5SIM_J3.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

Chaintech 5VGM1 10/23/1997 coming Request beta testers for this patched BIOS.
This patched BIOS adds support for both the original K6-2/III as well as the K6plus.
Due to limitations of the linear Vcore regulator on the 5VGM1, a CPU-upgrade-adapter is needed to run the K6 series.

Chaintech 5VLM 12/03/1997 5VLM_J2.ZIP This patched BIOS adds support for both the original K6-2/III as well as the K6plus, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!.

Chicony Laptop
MP983 V1.43D
V1.46S coming Request beta testers for these patched BIOSes

DataExpert MVP 7598 V 1.3 MVP7_J2.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

DFI 586IPVG 08/13/97 IPVG_J4.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

DFI 586ITBD 07/13/98 5ITBD_J3.ZIP New Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).

DFI 586ITOX 03/28/01 ITOXC_J1.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III and supports the Cyrix MII 4.0x multiplier. Both this patched and the original 03/28/01 BIOS have full 128GB(640GB) support.

DTK PAM-0070S E0 V1.04A (07/24/1998) coming Request beta testers for this patched BIOS
Apart from K6plus support, this "patch J.2" BIOS adds Write-Allocation support for all K6 CPUs and has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

EFA P5MVP3-AT Version 1.05 P5MVP3J2.ZIP Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

Elitegroup P5SD-A Ver 1.4a 01/04/1999 coming Request beta testers for this patched BIOS.
Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).

Elitegroup P5SD-AS Ver 1.0a 06/03/1998 P5SDASJ2.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

Elitegroup P5SD-B Ver 2.3c 09/09/1998 coming Request beta testers for this patched BIOS.
This BIOS is for the Rev 1.1 and 1.1a boards and it is unknown if it will work on the Rev 1.0 board.
Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

Elitegroup P5SD-B+ Ver 1.1k 03/11/1999 P5SDBPJ2.ZIP Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

Elitegroup P5SS-Me Ver 2.1 04/30/1999 P5SSMEJ2.ZIP Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

Elitegroup P5TX-Bpro Ver 2.2 07/28/1998 Bpro_J3.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).

Elitegroup P5VP-A+ Ver 2.2h 06/01/1999 VP22H_J2.ZIP This BIOS is for boards with a 2Mbit (256KB) flash chip.
Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

Elitegroup P5VX-Be Ver 1.5 11/04/1998 VXBE_J2.ZIP This BIOS is for Rev 2.0 and Rev 3.0 boards. It is unknown if it works a Rev 1.0 board.
Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
Note that the lowest Vcore selection on this board is 2.5V, so a Voltage Regulator Adapter is needed to run the K6-2/-III/plus.

FIC VA-502 1.13AJ139 (01/26/1999) VA502_J2.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).
Note that the lowest Vcore setting on this board is 2.5V so a modification to the Vcore resistor network, or a Voltage Regulator adapter, is needed for the K6-2/-III/plus.

Freetech P5F85
P5F87 REV: P5F85/87 PCI GREEN (11/24/1998) coming Request beta testers for this patched BIOS
Apart from K6plus support, this patched BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB(640GB).

Gainward 5S3A 5S3A-V1.2 (04/12/1999) coming Request beta testers for this patched BIOS
Apart from K6plus support, this "patch J.2" BIOS adds Write-Allocation support for all K6 CPUs and has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

Gainward 5VPA 5VPA-V1.5 (05/03/1999) 5VPA15J2.ZIP Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

Gigabyte 586ATE/P Ver.2.31 (05/06/98) coming Request beta testers for this patched BIOS
This patched BIOS adds support for both the original K6-2/III as well as the K6plus, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).
CAUTION: The lowest Vcore selection on this Single-rail board is 3.3V (board limitation), so a Voltage Regulator Adapter or VRM module is needed to run any Dual-voltage CPU like the Pentium MMX or the K6 series.

Gigabyte 586ATS Ver 1.32 (05/05/98) coming Request beta testers for this patched BIOS
Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

Gigabyte 586ATV Ver 1.28 (11/06/97) ATV128J2.ZIP This patched BIOS adds support for both the original K6-2/III as well as the K6plus, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
Due to limitations of the linear Vcore regulator on early revisions of the 586ATV, a CPU-upgrade-adapter may be needed to run the K6 series.

Gigabyte 586ATX Ver 2.0 (07/20/98) coming Request beta testers for this patched BIOS
Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

Gigabyte 586S2 Rev. 2.2 (07/30/98) coming Request beta testers for this patched BIOS
Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

Gigabyte 586T2 Rev. 2.2 (12/23/98) 586T2_J2.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

Gigabyte 5SG-100 REV. 2.0g 5SG_J1.ZIP Both this patched and the original 2.0g BIOS have full 128GB(640GB) support

Iwill P55XB2 Jul.21.1999 P55XB2J1.ZIP Both this patched and the original Jul.21.1999 BIOS have full 128GB(640GB) support

Iwill XA100 32210A (Jul.20.1999)
32210B (Jul.20.1999) XA100_J1.ZIP Both these patched and the original Jul.20.1999 BIOSes have full 128GB(640GB) support.
The 32210A BIOS is for XA100 Ver 1.10 or earlier boards, and the 32210B BIOS is for XA100 Ver 1.2 or later.

J-Bond PCI500C-Pa REV:2.50 5C-PA_J2.ZIP Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
This BIOS can also be used on the identical Vigor VG5C-Pa board.

Jetway J-542B
J-542BS D06 10-25-2000 542BD06J.ZIP This patched BIOS adds Write-Allocation support for all K6 CPUs.
Both this patched and the original D06 BIOS have full 128GB(640GB) support.

Jetway J-542C
J-542CS D06 10-25-2000 542CD06J.ZIP This patched BIOS adds Write-Allocation support for all K6 CPUs.
Both this patched and the original D06 BIOS have full 128GB(640GB) support.

Lucky Star 5VP3 #LE97-03 (04/21/1999) LE97_J2.ZIP Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

Lucky Star 5MVP3 Rev:2.x New #AU6-05 (11/05/1998) coming Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!

Lucky Tech
(Shing Yunn Enterprises) P5MVP4 VIA Apollo MVP4 REV : C
(05/18/1999) MVP4C_J1.ZIP Both this patched and the original MVP4C BIOS have full 128GB(640GB) support.

MicroStar MS-5172 V1.2 032798 coming Request beta testers for this patched BIOS
Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

M-Tech (MTI) R547
R548 R547_009 (06/16/1998)
R548_009 (06/16/1998) R548_J3.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).
As the BIOSes for the R547/R548 boards are identical, you can use this patched BIOS on both the R547 and R548 board.

PCChips M520 Release 1.1A (12/07/98) M520_J2.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
CAUTION: The lowest Vcore selection on this Single-rail board is 3.3V (board limitation), so a Voltage Regulator Adapter is needed to run any Dual-voltage CPU like the K6-2/-III/plus.

PCChips M550 11/17/1997 S M550_J2.ZIP This patched BIOS adds support for both the original K6-2/III as well as the K6plus.
Note that the lowest Vcore selection on this board is 2.5V, so a Voltage Regulator Adapter is needed to run the K6-2/-III/plus.

PCChips M570 v1.3 09/04/1998 S 570V13J1.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III.

PCChips M571 v3.2(a) 05/14/1999 S 990514J1.ZIP This board is the same as the Ampron PM-9100A and uses the same BIOS.
This patched BIOS adds K6plus support and has an updated VGA ROM (v1.13) as well.

PCChips M571 v7.0 04/21/1999 S 990421J1.ZIP This patched BIOS adds K6plus support and has an updated VGA ROM (v1.13) as well.

PCChips M572 02/24/1999 S 990224SJ.ZIP CAUTION: After installing the K6+ CPU, enter the BIOS Setup at the first boot and set the 'CPU Plug and Play' option to 'User Define', and 'Vcore Voltage' at 2.0V. Not doing so may damage the CPU!

PCChips M575 04/02/1999 S 990402A1.ZIP

PCChips M577 03/06/1999 S 990309J4.ZIP This board is the same as the Ampron PM9900 and uses the same BIOS. Apart from K6plus support, this patched BIOS has also better support for the original K6-2/550 and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).

PCChips M590 06/25/1999S 990625J2.ZIP CAUTION: After installing the K6+ CPU, enter the BIOS Setup at the first boot and set the 'CPU Plug and Play' option to 'User Define', and 'Vcore Voltage' at 2.0V. Not doing so may damage the CPU!
This patch J.2 BIOS also fixes the USB ports problem of the 990625S(J) BIOS.

PCPartner/Vtech MB520NH BIOS-I (70814B)
(08/14/1997) coming Request beta testers for this patched BIOS
This patched BIOS adds support for both the original K6-2/III as well as the K6plus, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
This BIOS can also be used on the PCPartner VXB810DS, VXB820DS, and VXB830DS boards.

PCPartner/Vtech VIB823DS with LGS I/O chip BIOS-G (81209)
(08/13/1998) P823G_J3.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
This BIOS cannot be used on the VIB823DS with ITE I/O chip

PCPartner/Vtech VIB878DS BIOS-I (90930)
BIOS-S (90930) P878_J1.ZIP The ZIP contains 2 patched BIOSes. The -I BIOS is for boards with ITE I/O and the -S BIOS for boards with SMC I/O chip. Both these patched and the original 90930 BIOSes have full 128GB(640GB) support.

QDI Advance 3 P5MVP3/A3 V3.0SL Jul.12,2000 M1_B30J1.ZIP Both this patched and the original M1_B30A BIOS have full 128GB(640GB) support.

QDI Titanium IB V1.3S Nov.27,1997 T1B_J3.ZIP New Apart from K6plus support, this patched BIOS also supports the original K6 Model 7, K6-2CXT/III, the IDT WinChip 2(A)(B), and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

QDI Titanium IB+ V1.5SB Jan.07,2000 T1BP_J3.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III, supports the IDT WinChip 2(A)(B), and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).

QDI Titanium IIB V2.0 V2.3SL May.14,1998 T2B_J3.ZIP New Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).

QDI Titanium IIIB V1.2S Oct.17,1997 coming Request beta testers for this patched BIOS
Apart from K6plus support, this patched BIOS also supports the original K6 Model 7, K6-2CXT/III, the IDT WinChip 2(A)(B), and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

RedFox AGP-ALI (1Mb) VER:1.4 (09/06/1999) ALI_J1.ZIP This BIOS is for AGP-ALI boards with 1Mbit (128KB) flash chip. Both this patched and the original V1.4 BIOS have full 128GB(640GB) support.

Shuttle HOT-569 569WIQ0E (02/10/1999) 569J3Q0E.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).

Shuttle HOT-569A 569AWIQ7 (01/09/1999) 569A_J3.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).

Shuttle HOT-571 571WIQ0B (02/10/1999) 571WIQJ2.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

Shuttle HOT-591P 591PWIQH (04/18/2000) 591PJIQH.ZIP Both this patched and the original 591PWIQH BIOS have full 128GB(640GB) support.
There is now also a newer 591PS024 BIOS from Shuttle. See above.

Shuttle HOT-603 603WW0C1 (06/17/1999) 603WW0J2.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

Soyo SY-5TE0/5TE2/5TE5 TE-0821 (08/21/97) 5TE0_J2.ZIP This patched BIOS adds support for both the original K6-2/III as well as the K6plus, and supports the Cyrix MII 4.0x multiplier.
Note that both the original TE-0821 and this patched BIOS version are limited to 8GB IDE harddisks.
CAUTION: The lowest Vcore selection on this Single-rail board is 3.3V (board limitation), so a Voltage Regulator Adapter or VRM module is needed to run any Dual-voltage CPU like the Pentium MMX or K6-2/-III/plus.

Soyo SY-5XA5/5XAE5 5xae-1a7 (03/03/1999) coming Request beta testers for this patched BIOS.
This BIOS is for boards with 1Mbit (128KB) flashchip.
Apart from K6plus support, this patched BIOS has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).

SuperMicro P5MMS98/P5MMS2 1.60 coming Request beta testers for this patched BIOS

Superpower SP-A586B VER:A.9 (11/29/1999) A586B-J1.ZIP New This patched BIOS adds Write-Allocation support for all K6 CPUs.
Both this patched and the original A09 BIOS have full 128GB(640GB) support.

Superpower SP-586TB SP-586TX VER:A.5
(09/14/1998) 586TB_J2.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

Tekram P5M3-A+ TRM-(P5M3-A+)-V1.04 P5M3A_J1.ZIP Both this patched and the original V1.04 BIOS have full 128GB(640GB) support.

Tekram P5M4-B TRM-P5M4-B-V1.03 P5M4B_J1.ZIP Both this patched and the original V1.03 BIOS have full 128GB(640GB) support.

Tekram P5M4-M TRM-P5M4-M-V1.03 P5M4M_J1.ZIP Both this patched and the original V1.03 BIOS have full 128GB(640GB) support.

Tekram P5M4-M+ TRM-P5M4-M+ V1.06 M4MP106J.ZIP Both this patched and the original V1.06 BIOS have full 128GB(640GB) support.

Tekram P5MVP-A4 (1Mb) TRM-P5MVP-V1.07 P5MVPAJ2.ZIP Apart from K6plus support, this "patch J.2" BIOS has a fix for the 64GB harddisk limit and supports IDE drives upto 128GB(640GB).

Tekram P5MVP-B4
P5MVP-A4 (2Mb) TRM-P5MVP-V1.15 P5MVP_J3.ZIP Apart from K6plus support, this "patch J.3" BIOS has a fix for the 64GB harddisk limit and supports IDE drives upto 128GB(640GB).

Tekram P5T30-B4 TRM-P5T30B4-V1.12 P5TB4_J4.ZIP New Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).

Tekram P5T30-B4E TRM-P5T30B4E-V1.03 P5TBE_J2.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

Tekram P5VP3-B3 TRM-P5VP3-B3-V1.03 P5VP3_J2.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

TMC AI5VG+ (1Mb)
AI5VG+ (2Mb) -H4-0813
-U4-0630 AI5VG1J4.ZIP
M598U4_J.ZIP The -H4- BIOS is for boards with 1Mbit (128KB) flash ROM, and the -U4- BIOS for boards that use the 2Mbit (256KB) chip.
Apart from K6plus support, the patched -H4- BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB). Both the patched and the original -U4- BIOS have full 128GB(640GB) support.

TMC TI5VG+ (1Mb)
TI5VG+ (2Mb) -Z2-0622
-Z6-0525 TI5VG1J2.ZIP
TI5VGZ6J.ZIP The -Z2- BIOS is for boards with 1Mbit (128KB) flash ROM, and the -Z6- BIOS for boards that use the 2Mbit (256KB) chip.
Apart from K6plus support, the patched -Z2- BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB! Both the patched and the original -Z6- BIOS have full 128GB(640GB) support.

Trigem Delhi-III Version 1.20 E120_J1.ZIP

Tyan S1564 V1.02 5/13/98 HX669_J4.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).

Tyan S1571
S1573 V1.06 082098 S1571_J3.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB! For more info about upgrading this board, see Scott Holland's Tyan S1571 Upgrade Page

Tyan S1590 B1.16c 092399 V90J116C.ZIP Both this patched and the original 1.16c BIOS have full 128GB(640GB) support

Tyan S1592 REV : 1.1 V92AW_J2.ZIP Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

Vision Top S7-MVP3 MVP3-HI VERSION:1.4 MVP3_J1.ZIP Both this patched and the original 1.4 BIOS have full 128GB(640GB) support

Zaapa ZP-5V REV : 06 (12/02/1998) coming Request beta testers for this patched BIOS
Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!

Note that, although these patched BIOS have been tested on different systems without any problems, they are provided "as is" and you use them at your own risk.

**Patched BIOS List**
Manufacturer	Model	Original BIOS	Patched BIOS	Remarks
Abit	IT5H v2.0	01/21/1998-9T	coming	Request beta testers for this patched BIOS This patched BIOS adds support for all K6-2/-III models, including the K6plus. However, the lowest Vcore selection is 2.8V (board limitation), so a Voltage Regulator Adapter is needed to run the K6-2/-III/plus.
Abit	IT5V v1.0	01/21/1998-CP	coming	Request beta testers for this patched BIOS This patched BIOS adds support for all K6-2/-III models, including the K6plus. However, the lowest Vcore selection is 2.8V (board limitation), so a Voltage Regulator Adapter is needed to run the K6-2/-III/plus.
Abit	AX5 PX5	11/13/1998-GP	none	I was unsuccesful patching this BIOS for K6-2/-III/-2+/-III+ support, due to unstable Vcore voltage at lower (2.0V-2.2V) settings on this jumperless board.
Abit	TX5	12/03/1998-GN	TX5B_J2.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
Acorp	5TX29	VER:1.3	5TX29_J2.ZIP	Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
Acorp	5VIA77	VER:A5	coming	Request beta testers for this patched BIOS. Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
Amptron	PM-9100C V5.0	07/02/1999 S	070299J1.ZIP	This BIOS is for boards with a 1Mbit (128KB) flash chip. CAUTION: After installing the K6+ CPU, enter the BIOS Setup at the first boot and set the 'CPU Plug and Play' option to 'User Define', and 'Vcore Voltage' at 2.0V. Not doing so may damage the CPU!
Amptron	PM9900	03/09/1999 S	990309J2.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2/550 and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
AOpen	AP5T	AP5T R1.82 Aug.09.1999	AP5T_J2.ZIP	Visit The Enhanced AP5T Home Page, a great page with AP5T-2 and AP5T-3 info. Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
AOpen	AX5T	AX5T R1.92 May.28.1999	AX5T_J2.ZIP	Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
Asus	P/I-P55T2P4 P/I-XP55T2P4	0207-2	0207_J4.ZIP	Apart from K6plus support, this patched BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB(640GB). I have a report that the K6-2+ doesn't work on the XP55T2P4 V1.3, but later versions of this board should be okay.
Asus	P/I-P55T2P4S	0206-5	0206_J2.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
Asus	P/I-P55TP4XE(G)	0302 (12/30/97)	TP4XE_J2.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB). Note that a VRM module or Voltage Regulator Adapter has to be added to run the K6-2/-III/plus.
Asus	P/I-P55TVP4	0204	0204_J2.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB! Note that the lowest Vcore selection is 2.7V (board limitation), so a Voltage Regulator Adapter is needed to run the K6-2/-III/plus.
Asus	P5S-B P5-99B	1001b25	1001B_J1.ZIP	Both this patched and the original 1001b25 BIOS have full 128GB(640GB) support.
Asus	P5S-VM P5-99VM	1006	1006VMJ1.ZIP	Both this patched and the original 1006 BIOS have full 128GB(640GB) support.
Asus	SP97-V	0109v-5	0109V_J2.ZIP	Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
Asus	SP97-XV	0109xv-5	0109XVJ2.ZIP	Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
Asus	SP98AGP-X	0104xl-1 0104x-1	0104XLJ2.ZIP 0104X_J2.ZIP	The 0104XL BIOS is for the SP98AGP-X without on-board audio and the 0104X for boards with audio. Apart from K6plus support, these "patch J.2" BIOSes have a fix for the 32GB harddisk limit and support IDE drives upto 128GB!
Asus	SP98-N	0109n-5	0109N_J2.ZIP	Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
Asus	TX97	0112-1	0112_J2.ZIP	Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
Asus	TX97-E	0112e-1	0112E_J2.ZIP	Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
Asus	TX97-L	0112ld-1	0112LDJ2.ZIP	Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
Asus	TX97-LE	0112le-1	0112LEJ2.ZIP	Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
Asus	TX97-X	0112x-1	0112X_J3.ZIP	Apart from K6plus support, this patched BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB(640GB).
Asus	TX97-XE	0112xe-1	0112XEJ2.ZIP	Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
Asus	TX97-XV	0112xv-1	0112XVJ2.ZIP	Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
Asus	TXP4	0112l-1	0112L_J3.ZIP	Apart from K6plus support, this patched BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB(640GB).
Asus	TXP4-X	0112el-1	0112ELJ2.ZIP	Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
Asus	VX97	0204v	0204V_J2.ZIP	Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
Azza	PT-5IT	07/17/98 W83977TF	5ITWS_J2.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).
Azza	PT-5VML	07/08/1999	5VML_J1.ZIP	Both this patched and the original 5vml-070899 BIOS have full 128GB(640GB) support.
BCM	FR550	Rev:M07 06/22/98	coming	Request beta testers for this patched BIOS. Apart from K6plus support, this patched BIOS also supports the original K6-2/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
BCM	IN5598	v1.01 (#20811)	IN5598J2.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
Biostar	M5ATC	ATC0811B	M5ATC_J2.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
Biostar	M5ATD	ATD0715B	M5ATD_J3.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
Biostar	M5SAF	SAF0316F	M5SAF_J1.ZIP	Both this patched and the original saf0316f BIOS have full 128GB support
Biostar	M5SIB v2.0	Ver. 1.06	M5SIB_J2.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
Biostar	MB-8500TTD	TTD0616B (06/11/98)	TTD_J2.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
Chaintech	5IFM0	02/24/1997	5IFM0_J1.ZIP	This patched BIOS adds support for all K6 models, including the K6plus. Due to limitations of the linear Vcore regulator on the 5IFM0, a CPU-upgrade-adapter is needed to run the K6 series.
Chaintech	5IFM1	10/08/1997	5IFMK6WA.ZIP	This patched BIOS adds support for both the original K6-2/III as well as the K6plus. Due to limitations of the linear Vcore regulator on the 5IFM1, a CPU-upgrade-adapter is needed to run the K6 series. Or you can modify the board as described (in German) on K6-2 in IFM1
Chaintech	5RSA0	12/11/1998	5RSA0_J2.ZIP	Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
Chaintech	5RSA2	10/13/1999	5RSA2_J1.ZIP	Both this patched and the original 10/13/1999 BIOS have full 128GB(640GB) support.
Chaintech	5SIM	08/07/1998	5SIM_J3.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
Chaintech	5VGM1	10/23/1997	coming	Request beta testers for this patched BIOS. This patched BIOS adds support for both the original K6-2/III as well as the K6plus. Due to limitations of the linear Vcore regulator on the 5VGM1, a CPU-upgrade-adapter is needed to run the K6 series.
Chaintech	5VLM	12/03/1997	5VLM_J2.ZIP	This patched BIOS adds support for both the original K6-2/III as well as the K6plus, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!.
Chicony	Laptop MP983	V1.43D V1.46S	coming	Request beta testers for these patched BIOSes
DataExpert	MVP 7598	V 1.3	MVP7_J2.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
DFI	586IPVG	08/13/97	IPVG_J4.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
DFI	586ITBD	07/13/98	5ITBD_J3.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).
DFI	586ITOX	03/28/01	ITOXC_J1.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III and supports the Cyrix MII 4.0x multiplier. Both this patched and the original 03/28/01 BIOS have full 128GB(640GB) support.
DTK	PAM-0070S E0	V1.04A (07/24/1998)	coming	Request beta testers for this patched BIOS Apart from K6plus support, this "patch J.2" BIOS adds Write-Allocation support for all K6 CPUs and has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
EFA	P5MVP3-AT	Version 1.05	P5MVP3J2.ZIP	Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
Elitegroup	P5SD-A	Ver 1.4a 01/04/1999	coming	Request beta testers for this patched BIOS. Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).
Elitegroup	P5SD-AS	Ver 1.0a 06/03/1998	P5SDASJ2.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
Elitegroup	P5SD-B	Ver 2.3c 09/09/1998	coming	Request beta testers for this patched BIOS. This BIOS is for the Rev 1.1 and 1.1a boards and it is unknown if it will work on the Rev 1.0 board. Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
Elitegroup	P5SD-B+	Ver 1.1k 03/11/1999	P5SDBPJ2.ZIP	Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
Elitegroup	P5SS-Me	Ver 2.1 04/30/1999	P5SSMEJ2.ZIP	Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
Elitegroup	P5TX-Bpro	Ver 2.2 07/28/1998	Bpro_J3.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).
Elitegroup	P5VP-A+	Ver 2.2h 06/01/1999	VP22H_J2.ZIP	This BIOS is for boards with a 2Mbit (256KB) flash chip. Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
Elitegroup	P5VX-Be	Ver 1.5 11/04/1998	VXBE_J2.ZIP	This BIOS is for Rev 2.0 and Rev 3.0 boards. It is unknown if it works a Rev 1.0 board. Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB! Note that the lowest Vcore selection on this board is 2.5V, so a Voltage Regulator Adapter is needed to run the K6-2/-III/plus.
FIC	VA-502	1.13AJ139 (01/26/1999)	VA502_J2.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB). Note that the lowest Vcore setting on this board is 2.5V so a modification to the Vcore resistor network, or a Voltage Regulator adapter, is needed for the K6-2/-III/plus.
Freetech	P5F85 P5F87	REV: P5F85/87 PCI GREEN (11/24/1998)	coming	Request beta testers for this patched BIOS Apart from K6plus support, this patched BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB(640GB).
Gainward	5S3A	5S3A-V1.2 (04/12/1999)	coming	Request beta testers for this patched BIOS Apart from K6plus support, this "patch J.2" BIOS adds Write-Allocation support for all K6 CPUs and has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
Gainward	5VPA	5VPA-V1.5 (05/03/1999)	5VPA15J2.ZIP	Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
Gigabyte	586ATE/P	Ver.2.31 (05/06/98)	coming	Request beta testers for this patched BIOS This patched BIOS adds support for both the original K6-2/III as well as the K6plus, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB). CAUTION: The lowest Vcore selection on this Single-rail board is 3.3V (board limitation), so a Voltage Regulator Adapter or VRM module is needed to run any Dual-voltage CPU like the Pentium MMX or the K6 series.
Gigabyte	586ATS	Ver 1.32 (05/05/98)	coming	Request beta testers for this patched BIOS Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
Gigabyte	586ATV	Ver 1.28 (11/06/97)	ATV128J2.ZIP	This patched BIOS adds support for both the original K6-2/III as well as the K6plus, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB! Due to limitations of the linear Vcore regulator on early revisions of the 586ATV, a CPU-upgrade-adapter may be needed to run the K6 series.
Gigabyte	586ATX	Ver 2.0 (07/20/98)	coming	Request beta testers for this patched BIOS Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
Gigabyte	586S2	Rev. 2.2 (07/30/98)	coming	Request beta testers for this patched BIOS Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
Gigabyte	586T2	Rev. 2.2 (12/23/98)	586T2_J2.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
Gigabyte	5SG-100	REV. 2.0g	5SG_J1.ZIP	Both this patched and the original 2.0g BIOS have full 128GB(640GB) support
Iwill	P55XB2	Jul.21.1999	P55XB2J1.ZIP	Both this patched and the original Jul.21.1999 BIOS have full 128GB(640GB) support
Iwill	XA100	32210A (Jul.20.1999) 32210B (Jul.20.1999)	XA100_J1.ZIP	Both these patched and the original Jul.20.1999 BIOSes have full 128GB(640GB) support. The 32210A BIOS is for XA100 Ver 1.10 or earlier boards, and the 32210B BIOS is for XA100 Ver 1.2 or later.
J-Bond	PCI500C-Pa	REV:2.50	5C-PA_J2.ZIP	Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB! This BIOS can also be used on the identical Vigor VG5C-Pa board.
Jetway	J-542B J-542BS	D06 10-25-2000	542BD06J.ZIP	This patched BIOS adds Write-Allocation support for all K6 CPUs. Both this patched and the original D06 BIOS have full 128GB(640GB) support.
Jetway	J-542C J-542CS	D06 10-25-2000	542CD06J.ZIP	This patched BIOS adds Write-Allocation support for all K6 CPUs. Both this patched and the original D06 BIOS have full 128GB(640GB) support.
Lucky Star	5VP3	#LE97-03 (04/21/1999)	LE97_J2.ZIP	Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
Lucky Star	5MVP3 Rev:2.x	#AU6-05 (11/05/1998)	coming	Apart from K6plus support, this "patch J.2" BIOS has a fix for the 32GB harddisk limit and supports IDE drives upto 128GB!
Lucky Tech (Shing Yunn Enterprises)	P5MVP4	VIA Apollo MVP4 REV : C (05/18/1999)	MVP4C_J1.ZIP	Both this patched and the original MVP4C BIOS have full 128GB(640GB) support.
MicroStar	MS-5172	V1.2 032798	coming	Request beta testers for this patched BIOS Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
M-Tech (MTI)	R547 R548	R547_009 (06/16/1998) R548_009 (06/16/1998)	R548_J3.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB). As the BIOSes for the R547/R548 boards are identical, you can use this patched BIOS on both the R547 and R548 board.
PCChips	M520	Release 1.1A (12/07/98)	M520_J2.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2/-III, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB! CAUTION: The lowest Vcore selection on this Single-rail board is 3.3V (board limitation), so a Voltage Regulator Adapter is needed to run any Dual-voltage CPU like the K6-2/-III/plus.
PCChips	M550	11/17/1997 S	M550_J2.ZIP	This patched BIOS adds support for both the original K6-2/III as well as the K6plus. Note that the lowest Vcore selection on this board is 2.5V, so a Voltage Regulator Adapter is needed to run the K6-2/-III/plus.
PCChips	M570 v1.3	09/04/1998 S	570V13J1.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III.
PCChips	M571 v3.2(a)	05/14/1999 S	990514J1.ZIP	This board is the same as the Ampron PM-9100A and uses the same BIOS. This patched BIOS adds K6plus support and has an updated VGA ROM (v1.13) as well.
PCChips	M571 v7.0	04/21/1999 S	990421J1.ZIP	This patched BIOS adds K6plus support and has an updated VGA ROM (v1.13) as well.
PCChips	M572	02/24/1999 S	990224SJ.ZIP	CAUTION: After installing the K6+ CPU, enter the BIOS Setup at the first boot and set the 'CPU Plug and Play' option to 'User Define', and 'Vcore Voltage' at 2.0V. Not doing so may damage the CPU!
PCChips	M575	04/02/1999 S	990402A1.ZIP
PCChips	M577	03/06/1999 S	990309J4.ZIP	This board is the same as the Ampron PM9900 and uses the same BIOS. Apart from K6plus support, this patched BIOS has also better support for the original K6-2/550 and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).
PCChips	M590	06/25/1999S	990625J2.ZIP	CAUTION: After installing the K6+ CPU, enter the BIOS Setup at the first boot and set the 'CPU Plug and Play' option to 'User Define', and 'Vcore Voltage' at 2.0V. Not doing so may damage the CPU! This patch J.2 BIOS also fixes the USB ports problem of the 990625S(J) BIOS.
PCPartner/Vtech	MB520NH	BIOS-I (70814B) (08/14/1997)	coming	Request beta testers for this patched BIOS This patched BIOS adds support for both the original K6-2/III as well as the K6plus, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB! This BIOS can also be used on the PCPartner VXB810DS, VXB820DS, and VXB830DS boards.
PCPartner/Vtech	VIB823DS with LGS I/O chip	BIOS-G (81209) (08/13/1998)	P823G_J3.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB! This BIOS cannot be used on the VIB823DS with ITE I/O chip
PCPartner/Vtech	VIB878DS	BIOS-I (90930) BIOS-S (90930)	P878_J1.ZIP	The ZIP contains 2 patched BIOSes. The -I BIOS is for boards with ITE I/O and the -S BIOS for boards with SMC I/O chip. Both these patched and the original 90930 BIOSes have full 128GB(640GB) support.
QDI	Advance 3 P5MVP3/A3	V3.0SL Jul.12,2000	M1_B30J1.ZIP	Both this patched and the original M1_B30A BIOS have full 128GB(640GB) support.
QDI	Titanium IB	V1.3S Nov.27,1997	T1B_J3.ZIP	Apart from K6plus support, this patched BIOS also supports the original K6 Model 7, K6-2CXT/III, the IDT WinChip 2(A)(B), and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
QDI	Titanium IB+	V1.5SB Jan.07,2000	T1BP_J3.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III, supports the IDT WinChip 2(A)(B), and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).
QDI	Titanium IIB V2.0	V2.3SL May.14,1998	T2B_J3.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).
QDI	Titanium IIIB	V1.2S Oct.17,1997	coming	Request beta testers for this patched BIOS Apart from K6plus support, this patched BIOS also supports the original K6 Model 7, K6-2CXT/III, the IDT WinChip 2(A)(B), and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
RedFox	AGP-ALI (1Mb)	VER:1.4 (09/06/1999)	ALI_J1.ZIP	This BIOS is for AGP-ALI boards with 1Mbit (128KB) flash chip. Both this patched and the original V1.4 BIOS have full 128GB(640GB) support.
Shuttle	HOT-569	569WIQ0E (02/10/1999)	569J3Q0E.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).
Shuttle	HOT-569A	569AWIQ7 (01/09/1999)	569A_J3.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III, supports the Cyrix MII 4.0x multiplier, and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).
Shuttle	HOT-571	571WIQ0B (02/10/1999)	571WIQJ2.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
Shuttle	HOT-591P	591PWIQH (04/18/2000)	591PJIQH.ZIP	Both this patched and the original 591PWIQH BIOS have full 128GB(640GB) support. There is now also a newer 591PS024 BIOS from Shuttle. See above.
Shuttle	HOT-603	603WW0C1 (06/17/1999)	603WW0J2.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
Soyo	SY-5TE0/5TE2/5TE5	TE-0821 (08/21/97)	5TE0_J2.ZIP	This patched BIOS adds support for both the original K6-2/III as well as the K6plus, and supports the Cyrix MII 4.0x multiplier. Note that both the original TE-0821 and this patched BIOS version are limited to 8GB IDE harddisks. CAUTION: The lowest Vcore selection on this Single-rail board is 3.3V (board limitation), so a Voltage Regulator Adapter or VRM module is needed to run any Dual-voltage CPU like the Pentium MMX or K6-2/-III/plus.
Soyo	SY-5XA5/5XAE5	5xae-1a7 (03/03/1999)	coming	Request beta testers for this patched BIOS. This BIOS is for boards with 1Mbit (128KB) flashchip. Apart from K6plus support, this patched BIOS has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).
SuperMicro	P5MMS98/P5MMS2	1.60	coming	Request beta testers for this patched BIOS
Superpower	SP-A586B	VER:A.9 (11/29/1999)	A586B-J1.ZIP	This patched BIOS adds Write-Allocation support for all K6 CPUs. Both this patched and the original A09 BIOS have full 128GB(640GB) support.
Superpower	SP-586TB	SP-586TX VER:A.5 (09/14/1998)	586TB_J2.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
Tekram	P5M3-A+	TRM-(P5M3-A+)-V1.04	P5M3A_J1.ZIP	Both this patched and the original V1.04 BIOS have full 128GB(640GB) support.
Tekram	P5M4-B	TRM-P5M4-B-V1.03	P5M4B_J1.ZIP	Both this patched and the original V1.03 BIOS have full 128GB(640GB) support.
Tekram	P5M4-M	TRM-P5M4-M-V1.03	P5M4M_J1.ZIP	Both this patched and the original V1.03 BIOS have full 128GB(640GB) support.
Tekram	P5M4-M+	TRM-P5M4-M+ V1.06	M4MP106J.ZIP	Both this patched and the original V1.06 BIOS have full 128GB(640GB) support.
Tekram	P5MVP-A4 (1Mb)	TRM-P5MVP-V1.07	P5MVPAJ2.ZIP	Apart from K6plus support, this "patch J.2" BIOS has a fix for the 64GB harddisk limit and supports IDE drives upto 128GB(640GB).
Tekram	P5MVP-B4 P5MVP-A4 (2Mb)	TRM-P5MVP-V1.15	P5MVP_J3.ZIP	Apart from K6plus support, this "patch J.3" BIOS has a fix for the 64GB harddisk limit and supports IDE drives upto 128GB(640GB).
Tekram	P5T30-B4	TRM-P5T30B4-V1.12	P5TB4_J4.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).
Tekram	P5T30-B4E	TRM-P5T30B4E-V1.03	P5TBE_J2.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
Tekram	P5VP3-B3	TRM-P5VP3-B3-V1.03	P5VP3_J2.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
TMC	AI5VG+ (1Mb) AI5VG+ (2Mb)	-H4-0813 -U4-0630	AI5VG1J4.ZIP M598U4_J.ZIP	The -H4- BIOS is for boards with 1Mbit (128KB) flash ROM, and the -U4- BIOS for boards that use the 2Mbit (256KB) chip. Apart from K6plus support, the patched -H4- BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB). Both the patched and the original -U4- BIOS have full 128GB(640GB) support.
TMC	TI5VG+ (1Mb) TI5VG+ (2Mb)	-Z2-0622 -Z6-0525	TI5VG1J2.ZIP TI5VGZ6J.ZIP	The -Z2- BIOS is for boards with 1Mbit (128KB) flash ROM, and the -Z6- BIOS for boards that use the 2Mbit (256KB) chip. Apart from K6plus support, the patched -Z2- BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB! Both the patched and the original -Z6- BIOS have full 128GB(640GB) support.
Trigem	Delhi-III	Version 1.20	E120_J1.ZIP
Tyan	S1564	V1.02 5/13/98	HX669_J4.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB(640GB).
Tyan	S1571 S1573	V1.06 082098	S1571_J3.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB! For more info about upgrading this board, see Scott Holland's Tyan S1571 Upgrade Page
Tyan	S1590	B1.16c 092399	V90J116C.ZIP	Both this patched and the original 1.16c BIOS have full 128GB(640GB) support
Tyan	S1592	REV : 1.1	V92AW_J2.ZIP	Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!
Vision Top	S7-MVP3	MVP3-HI VERSION:1.4	MVP3_J1.ZIP	Both this patched and the original 1.4 BIOS have full 128GB(640GB) support
Zaapa	ZP-5V	REV : 06 (12/02/1998)	coming	Request beta testers for this patched BIOS Apart from K6plus support, this patched BIOS has also better support for the original K6-2CXT/III and has a fix for the 32GB IDE harddisk limit to support drives upto 128GB!