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Biostar

• General info
• Award BIOS IDs (90)
• AMI BIOS IDs (36)
• Links

Scan computer for Biostar BIOS and driver updates

To find your Biostar BIOS upgrade or driver you can do one of the following options:

1. Identify your Biostar motherboard model via our Award BIOS or AMI BIOS id's tabs
2. Find a(n) Biostar BIOS upgrade or driver via the Links tab on the official site.
3. Run the BIOS Agent Plus scan (new!) browser plugin.

Award BIOS motherboard IDs (more info)

2A4X5B03-00	MB8433/40UUC
2A4X5B08C-00	MB-8433UUD
2A4X5B0YC-00	MB-8433/40/50UUC-A
2A597B00-00	MB-1566TIC_A
2A59CB0C9-00	MB-8500TEC (PCB: Rev 3)
2A5IDB0BC-00	MB-8500SAC
03/16/2001-SiS-530-2A5IOB09C-00	M5SAF
05/17/2000-SiS-530-2A5IOB09C-00	M5SAF
2A5KBB01C-00
2A5KIB09C-00	M5ATA
2A5UIB01	MB-1566PAT-B
2A5UMB01-00	MB-1590PCT
2A5X7B04-00	MB-8500UUR-A
2A5X7B0A-00	MB-8500URC
2A69JB0DC-00	M6TLC
04/14/1999-i440EX-2A69JB0GC-00	M6TEA
11/10/1998-i440LX-2A69JB09C-00	M6TLA
03/09/1999-i440LX-2A69JB0DC-00	M6TLC
08/11/1998-i440EX-2A69JB0EC-00	M6TLD
05/24/1999-i440LX-2A69JB0IC-00	M6TLG
03/18/1999-i440LX-2A69JB0IC-00	M6TLH
03/15/1999-i440LX-2A69JB0IC-00	M6TLI
2A69KB0BC-00	M6TBC
2A69KB0EC-00	M6TBA
02/23/1999-I440ZX-SMC60X-2A69KB0JC-00	M6TZA
12/16/1999-I440ZX-SMC60X-2A69KB0JC-00	M6TZA
02/10/2000-I440ZX-SMC60X-2A69KB0JC-00	M6TZA
06/16/2000-i440ZX-SMC60X-2A69KB0JC-00	M6TZA
09/22/1998-i440BX-SMC60X-2A69KB0BC-00	M6TBC
05-31-1999-i440BX-SMC60X-2A69KB0CC-00	M6TBA
11/02/1999-i440BX-SMC60X-2A69KB0CC-00	M6TBA (PCB: ?)
01/18/1999-693-596-SMC60-2A6LGB0DC-00	M6VBA
02/23/1999-692-596-8671-2A6LGB09C-00	M6VBE with 82C692 chipset
03/23/2000-693A-596-8671-2A6LGB09C-00	M6VBE-A with 82C693A chipset
01/14/2000-693-686A-2A6LGB0FC-00	M6VCA
07/27/2000-693A-596-8671-2A6LGB09C-00	M6VBE-A
01/28/2003-nVidia-nForce-6A61BB0BC-00	M7NCG
09/20/2005-C51MCP51-6A61HB09C-00	TForce 6100-939
09/20/2005-C51MCP51-6A61HB09C-00	TForce 6100
12/11/2001-i850-W83627HF-6A69SB09C-00	M7TTB
11/22/2002-i845GE-8712F-6A69VB0UC-00	P4TGT
04/18/2003-i845PE-8712F-6A69VB0PC-00	P4TPT
06/13/2003-i845E-IT8712-6A69VB0BC-00	P4TPE 800
02/17/2003-i845e-IT8712F-6A69VB0BC-00	P4TDP Pro
09/19/2002-i845E-W83627H-6A69VB09C-00	P4TDK
08/08/2002-i845G-W83627H-6A69VB0HC-00	P4TDH
07/25/2002-i845G-W83627H-6A69VB0GC-00	P4TDG
08/04/2003-i845GL-8712F-6A69VB0QC-00	P4TDQ Pro
03/18/2003-i845GL-8712F-6A69VB0QC-00	P4TDQ
08/23/2002-i845-IT8712F-6A69VB0BC-00	P4TDP
04/24/2002-i845-W83627HF-6A69VB09C-00	M7TDE
04/24/2002-i845-W83627HF-6A69VB09C-00	M7TDF
05/06/2002-i845-W83627HF-6A69VB09C-00	M7TDA
04/24/2002-i845-W83627HF-6A69VB09C-00	M7TDB
04/23/2003-SiS-650-6A6IXB0BC-00	P4SFA
10/30/2002-SiS-650GX-6A6IXB0BC-00	P4SDL
07/25/2002-SiS-650GX-6A6IXB09C-00	P4SXQ
02/17/2003-SiS-645DX-6A6IXB0BC-00	P4SDP
04/19/2002-SiS-650-6A6IXB09C-00	M7SXG
04/23/2002-SiS-645-6A6IXB08C-00	M7SXD
04/30/2002-SiS-645-6A6IXB08C-00	M7SXF
08/17/2000-8371-686A-6A6LKB09C-00	M7MKB
06/26/2000-8371-686A-6A6LKB09C-00	M7MKE
04/01/2000-8371-686A-6A6LKB09C-00	MKE0401F
10/06/2000-8363-686A-6A6LMB09C-00	M7VKA
05/24/2001-8363-686A-6A6LMB09C-00	M7VKB
03/19/2002-8363-686A-6A6LMB09C-00	M7VKD
02/09/2001-8365-686X-6A6LNB0AC-00	M7VKE
08/29/2003-PT800-8237-6A6LXB0FC-00	P4VTB
08/29/2003-PT800-8237-6A6LXB0FC-00	P4VTC
10/16/2002-KT400-8235-6A6LYB09C-00	M7VIT
09/10/2002-KT400-8235-6A6LYB09C-00	M7VIK
12/23/1999-AMD-75X-W977-6A6S2B09C-00	M7MKA
11/01/2001-761-686B-6A6S6B09C-00	M7MIA
04/25/2003-Springdale-G-6A79AB0BC-00	P4TSV
05/29/2003-Springdale-P-6A79AB0CC-00	P4TSE Pro
05/13/2003-Canterwood-6A79BB0BC-00	P4TCA Pro

Award BIOS motherboard IDs with custom syntax

03/29/2003-P4M266A-8235-6A6LW00HC-00	U8668-D V1
08/04/2003-P4M266A-8235-6A6LW00HC-00	U8668-D V6
07/04/2003-P4M266A-8235-6A6LW00HC-00	U8668-D V4/5
08/11/2003-P4M266A-8235-6A6LW00HC-00	U8668-D V7
06/26/2003-P4M266A-8235-6A6LW00HC-00	U8668 Grand
01/21/2003-P4X266A-8233-6A6LW00GC-00	U8668
04/22/2003-P4M266-8235-6A6LW00HC-00	U8668 Pro
08/08/2002-P4X266E-8235-6A6LW00JC-00	U8768
08/22/2002-P4X266E-8235-6A6LW00IC-00	U8788
07/04/2003-P4X266E-8235-6A6LW00HC-00	U8568 Pro
01/14/2003-P4X266E-8235-6A6LW00HC-00	U8569
11/22/2002-P4X266A-8233-6A6LW00FC-00	U8568
05/27/2004-P4M266A-8235-6A6LW00HC-00	U8668D (PCB: 1.x)
07/25/2003-P4X400-8235-6A6LX00KC-00	U8598

AMI BIOS motherboard IDs (more info)

40-0100-001223-00101111-040493-UMC491F-H
40-0100-001223-00101111-040493-UMC491F-U
40-0100-001223-00101111-111192-B82C3480-H
51-0000-001224-00111111-101094-T-F
51-0426-001223-00111111-071595-82430VX-F
51-1219-001223-00111111-071595-82430VX-F
51-1224-001223-00111111-071595-82430VX-F
40-E301-000000-10111111-121593-UMC498-H	1433 /50UIV
41-A100-001223-00101111-101094-ALI87/89E	8433AEP
40-P301-001223-00101111-072594-UMC498-H	MB 1433 /50UIV
30-0200-D61223-0010111-050591-PEAKDM_B-8	MB-1333C
30-0100-DG1223-00101111-070791-OPWB3/B-F	MB-1340PMA-CH
40-P101-001223-00101111-072594-UMC498-H	MB-1433/40/50UIV (3 VL/4 ISA)
40-0100-001223-00101111-111192-B82C3480-F	MB-1433/50AEA-P
40-0100-001223-0010111-121291-B82C3480-S	MB-1433/50AEA-V
40-0100-001223-0010111-121291-B82C3480-F	MB-1433/50AEA-V
40-0100-001223-00101111-040493-UMC491F-F	MB-1433/50UCV (PCB: Ver. E)
40-0102-001223-00101111-040493-82C3491A-H	MB-1433/50UCV-B
40-0100-D61223-00101111-070791-FTDI3486-F	MB-1433FA (PCB: Rev 1)
40-0100-D61223-00101111-070791-FTDI-F	MB-1433FA (PCB: Rev 2)
51-0000-001223-00111111-101094-INTEL-FX-F	MB-8500TAC (PCB: Rev 3)
51-0716-001223-00111111-071595-82439HX-F	MB-8500TUC
51-0904-001223-00111111-071595-82439HX-F	MB-8500TUC
51-0904-001223-00111111-071595-82439HX-H	MB-8500TUC-A (PCB: Rev 2 and 3)
51-0509-01223-00111111-071595-82430VX-F	MB-8500TVD
51-1210-001223-00111111-071595-82430VX-F	MB-8500TVD (PCB: Rev A)
51-0512-001223-00111111-071595-82430VX-H	MB-8500TVG
51-0819-001223-00111111-07159582430VX-H	MB-8500TVG
51-0222-001223-00111111-071595-82430VX-F	MB-8500TVX
51-0809-001223-00111111-071595-82430VX-F	MB-8500TVX
51-1130-001223-00111111-071595-82430VX-F	MB-8500TVX
51-0607-001223-00111111-071595-82430VX-F	MB-8500TVX-A (PCB: Rev 2)
51-0618-001223-00111111-071595-82430VX-F	MB-8500TVX-A
51-0826-001223-00111111-071595-82430VX-F	MB-8500TVX-A
61-1001-001223-00111111-071595-I82440FX-F	MB-8600TTX
51-0000-001223-00111111-101094-TRITON-F	MB8500TAC-A

• http://www.biostar.com.tw
• http://www.biostar-usa.com/
• http://www.pantexcom.com/svcpage/bios.htm
• http://home.worldonline.nl/~jboonen/biostar.htm

• BIOS for 1433-UIV (AMI BIOS dated 07/25/94) (Note: This board has a flash ROM socket, but it is commonly used for an EPROM; this means you'll have to check if your board is flashable or not!). (Use with caution; only use this BIOS if you know that it's right for your board !)
• BIOS for 8500SAC

Notes about MB-1425/33/40/50UCV BIOSs:

They're all based around one basic chipset: the 82c3491 or 82c491. The 3491 is a later version of the 491.

Now, the part number: MB-1425/33/40/50UCV-A

MB-14 is generic. Means "motherboard" :-)

25/33/40/50 means clock speed. Early boards came with fixed frequency crystal, and the number represented which crystal was fitted. Later boards came with jumper-selectable frequency, thus they had all speeds listed in part numbers. Later still, the speed-list was abbreviated to just 1433/50 for abbreviation purposes only. UCV is the 'real' model number. The -A is the revision.

-A boards support 4x30 pin SIMM only
-B,-C&-D board support 4x30 and 2x72 pin SIMM's, however the manufacturer may fit the bare board with 8x30 pin sockets if he wants to..
-D and later support green fuction (with new k/b controller chip)
-E boards MIGHT support 3.3v CPU series (if manufacturer put the regulator onboard)

So.. basically, -A boards have their own BIOS
-B & -C boards have their own (interchangeable) BIOS
-D & -E boards have their own (interchangeable) BIOS

The -E BIOS 'knows' more CPU's, and the cpu type status displayed onscreen therefore is accurate with, say, cyrix CPU's, whilst the -D BIOS isn't.
The boards don't support anything higher than intel dx4-100, amd dx4-100, cyrix dx4-100. there is no support for cyrix 5x86-100/120, amd 5x86-133/160.
The board DOES support intel P24T Pentium Overdrive, however.

Other rules: If board has '491' chipset, do not use bios from '3491' or vice-versa - they're not software-wise the same. usually only -A boards have 491 chip, others have 3491.

Only AMI bios is used, never Award, etc. AMI bios always pre-LBA text mode setup type BIOS, never GUI type, never LBA, never APM.

There are no known 'bugs' in any version of BIOS, only changes to work with hardware modifications.
Thanks to Craig Hart for this information.

On the MB-8500TAC by "th"

There are at least 6 Revisions. I have two TAC, one Revision 5 and one Revision 6 Biostar itself divides the TAC into two categories: Rev 1-3 and Rev 4-6<:P>

There are only 2 Bios-versions, one for SMC-I/O and one for UMC-I/O.
Later Revs usually support more CPUs. It seems that Rev 1 supports Pentium only whereas Rev 6 supports AMD K5, Cyrix 6x86 (some), Pentium and Pentium MMX! The SMC boards do only have the internal mouse-port not the external.

8500TAC Rev. 6 supports split voltage with 2.8V/3.4V. Board Rev 4 and 5 are 2.5V/3.4V.

Wanted BIOSs:

• 1433 /50UIV
• MB-1425/33/40/50UCV rev E
• 8433AEP
• 1433-UIV newer then 07/25/94