Award BIOS Numbers: Identifying a motherboard

Award BIOS numbers

Introduction

Many users don't know the name of their clone motherboard. This is because the company name is not mentioned anywhere in the manual, or on the motherboard. If you want to upgrade your BIOS you really have to know the motherboard manufacturer, because if you flash the wrong BIOS upgrade your system could stop booting.

Luckily, Award and AMI BIOS have a unique BIOS ID (= BIOS Number) which identifies the manufacturer and chipset of the board. Phoenix BIOSs, in most cases, do NOT.

The AMI or Award BIOS id appears at the bottom of your screen after power on, during memory count up. The PAUSE key should work at that point, allowing you to write down the BIOS number, the BIOS date, and the version. You must copy it exactly.

A much easier way to get the Award/AMI BIOS number & possible manufacturer is by using CTBIOS v 1.5. Run it and it'll give you the BIOS number, possible manufacturer and more. If you want to know the name of your chipset you can also download ctpci330.zip.

If you have an AMI BIOS you can also try the AMIBIOS Motherboard ID Utility (written by AMI)

Let's show you an example of an Award BIOS id:

2A59IZ1DC-00

The first 5 characters identify the chipset. 2A59I stands for the Intel Triton TX chipset. You can find an extensive list of chipsets if you scroll down a bit.

The sixth & seventh character identify the manufacturer: in this case it's Z1. If you look at the Award Hardware Vendors list (see below) you'll find that the manufacturer is Zida/Tomato

The 8th character (most of the times, not always!) identifies the model. I say 'most of the times' because the manufacturer can use the same 8th character for all models based on a particular chipset!.

The C-00 at the end doesn't mean much.

The numbers are categorized on Chipset basis. If you don't know the chipset, just use Edit/Find in your browser and search for your BIOS Number. This page is more extensive than Award's (Phoenix) own publicized list!

Thanks to Mike Zakoussilo for filling in some vendor ids and some chipset ids.

If you know BIOS ids that are not yet on the list, please mail them ONLY when you know the manufacturer AND model!

Note: I'm NOT RESPONSIBLE for possible mistakes in this list ! Use this info at your own risk!

Identifying the chipset:

As noted above the first part of the Award BIOS Number identifies the chipset used. The following is a list of all the ids and their corresponding chipsets. Follow the links to get a list of known BIOS numbers for a particular chipset.

Note that when the BIOS begins with a 2 then the Award BIOS core version is 4.50 or 4.51. If it starts with a 3 this means the BIOS core is version 4.60. BIOS Numbers that start with a 6 have a Award BIOS V6.00 core

Identifying the chipset
213V1	SARC RC2018
21480	HiNT SC9204 (Sierra), HMC82C206
214D1	HiNT SC9204 (Sierra), HMC82C206
214I8	SiS 85C471
214I9	SiS 85C471E
214L2	VIA VT82C486A
214L6	VIA Venus VT82C486A/VT82C495/VT82C496G
214W3	VD 88C898
214X2	UMC 491 Chipset
215UM	OPTi 82C546/82C597
21917	ALD Chipset
219V0	SARC RC2016
2A431	Cyrix MediaGx Cx5510 chipset
2A432	Cyrix GXi Cx5520 Chipset
2A433	Cyrix GXm Cx5520 Chipset
2A434	Cyrix GXm Cx5530 Chipset
2A496	Intel Saturn Chipset
2A498	Intel Saturn II Chipset
2A499	Intel Aries Chipset
2A4H2	Contaq 82C596-9 Chipset
2A4IB	SiS 496/497 Chipset
2A4J6	Winbond W83C491(SL82C491 Symphony Wagner)
2A4KA	ALi ?
2A4KC	ALi 1439/45/31 Chipset
2A4KD	ALi 1487/1489 Chipset
2A4L4	VIA 486A/482/505 Chipset
2A4L6	VIA 496/406/505 Chipset
2A4O3	EFAR EC802GL, EC100G chipset
2A4UK	OPTI-802G-822 Chipset
2A4X5	UMC 8881E/8886B Chipset
2A4Z0	?
2A597	Intel Mercury Chipset
2A59A	Intel Natoma (Neptune) Chipset
2A59B	Intel Mercury Chipset
2A59C	Intel Triton FX chipset (Socket 7 based m/b)
2A59F	Intel Triton II HX chipset (also kwown 430 HX PCIset) (Socket 7 based m/b)
2A59G	Intel Triton VX chipset (Socket 7 based m/b)
2A59H	Intel Triton VX chipset (Socket 7 based m/b) with an illegal BIOS
2A59I	Intel Triton TX chipset (Socket 7 based m/b)
2A5C7	VIA VT82C570 Chipset
2A5G7	VLSI VL82C594 Chipset
2A5GB	VLSI Lynx VL82C541/VL82C543 Chipset
2A5IA	SiS 501/02/03 Chipset
2A5IC	SiS 5501/02/03 Chipset
2A5ID	SiS 5511/12/13 Chipset
2A5IE	SiS 5101-5103 Chipset
2A5IF	SiS 5596/5597 Chipset
2A5IH	SiS 5571 Chipset
2A5II	SiS 5582/5597/5598 Chipset
2A5IJ	SiS 5120 Mobile Chipset
2A5IK	SiS 5591 Chipset
2A5IM	SiS 530 Chipset
2A5KB	Ali 1449/61/51 Chipset
2A5KE	ALI 1511 Chipset
2A5KF	ALI 1521/23 Chipset
2A5KI	ALI IV+ M1531/M1543 Chipset (also known as Super TX chipset)
2A5KK	Ali Aladdin V Chipset
2A5L5	VIA ?
2A5L7	VIA VT82C570 Chipset
2A5L9	VIA VT82C570M Chipset
2A5LA	VIA Apollo VP1 Chipset (VT82C580VP) (sometimes relabeled as VXPro chipset)
2A5LC	VIA Apollo VP2 Chipset (sometimes relabeled as AMD640 chipset)
2A5LD	VIA VPX Chipset (sometimes relabeled as VXPro+ chipset)
2A5LE	VIA Apollo (M)VP3 Chipset
2A5LH	VIA Apollo VP4 Chipset
2A5R5	Forex FRX58C613/601A chipset
2A5R6	Forex FRX58C613A/602B/601B
2A5T6	ACC Micro 2278/2188 (Auctor) chipset
2A5UI	Opti 82C822/596/597 Chipset or OPTi 596/546/82
2A5UL	Opti 82C822/571/572 Chipset
2A5UM	Opti 82C822/546/547 Chipset
2A5UN	Opti Viper-M 82C556/557/558 Chipset or Opti Viper 82C556/557/558
2A5UP	Opti Viper Max
2A5X7	UMC 82C890 Chipset
2A5X8	UMC UM8886BF/UM8891BF/UM8892BF Chipset
2A5XA	UMC 890C Chipset
2A69H	Intel 440FX chipset (Pentium II/Pentium Pro based chipset)
2A69J	Intel 440LX/EX chipset (Pentium II based chipset)
2A69K	Intel 440BX/ZX chipset (Pentium II/III based chipset)
2A69L	Intel 'Camino' 820 Chipset
2A69M	Intel 'Whitney' 810 Chipset
2A69N	Intel Banister Mobile ChipSet with C&T 69000 Video
2A6IL	SiS 5600 Chipset
2A6IN	SiS 620 Chipset
2A6KL	Ali 1621/1543C Chipset
2A6KO	ALi M1631/M1535D
2A6LF	Via Apollo Pro (691/596) Chipset
2A6LG	Via Apollo Pro Plus (692/596) Chipset
2A6LI	Via MVP4 VIA 601(Trident video on-chip)/686A (Modem on-chip, Sound on-chip)
2A6LJ	VIA 694X/596B and VIA 694X/686A(Modem on-chip, Sound on-chip)
2A9KG	ALi M6117/M1521/M1523 chipset
2AG9H	Intel Neptune ISA Chipset
2B496	Intel Saturn I EISA chipset
2B597	Intel Mercury EISA chipset
2B59A	Intel Neptune EISA Chipset
2B59F	Intel 430HX EISA chipset
2B69D	Intel Orion EISA Chipset
2C460	UNIchip U4800-VLX chipset
2C470	HYF82481 chipset
2C4D2	HiNT SC8006 (Sierra), HMC82C206
2C4I7	SiS 461 Chipset
2C4I8	SiS 85C471B chipset
2C4I9	SiS 85C471B/E/G chipset
2C4J6	Winbond W83C491(SL82C491 Symphony Wagner)
2C4K9	ALI 14296 Chipset
2C4KC	Ali 1439/45/31 Chipset
2C4L2	VIA 82C486A Chipset
2C4L6	VIA VT496G Chipset
2C4L8	VIA VT425MV chipset
2C4O3	EFAR EC802G-B Chipset
2C4S0	AMD Elan 470
2C4T7	ACC Micro 2048 (Auctor)
2C4UK	OPTI 82C895/82C602
2C4X2	UMC UM82C491/82C493 chipset
2C4X6	UMC UM498F/496F
3A6LF	Via Apollo Pro (691/596) Chipset with Award BIOS v4.60PGA
6A450	STMicroelectronics PC Client ST86 processor
6A69L	Intel 'Camino' i820 chipset with Award BIOS v6.00
6A69M	Intel i810(E) chipset with Award BIOS v6.00
6A69R	Intel 'Solano' i815(E) chipset with Award BIOS v6.00
6A69S	Intel i850 chipset with Award BIOS v6.00
6A6IS	SiS 730 chipset with Award BIOS v6.00
6A6IU	SiS 733 chipset with Award BIOS v6.00
6A6LJ	VIA 694X/686A (Apollo Pro 133A) chipset with Award BIOS v6.00
6A6LK	VIA VT8371 (KX-133) chipset with Award BIOS v6.00
6A6LM	VIA VT8363 (KT-133) chipset with Award BIOS v6.00
6A6LN	VIA VT8365 (KM-133)/VT8364 (KL-133) chipset with Award BIOS v6.00
6A6LU	VIA Apollo Pro266 chipset with Award BIOS v6.00
6A6LV	VIA VT8366/VT8233 chipset with Award BIOS v6.00
6A6S2	AMD 751 chipset with Award BIOS v6.00
6A6S6	AMD 760 chipset with Award BIOS v6.00
JA6LM	VIA VT8363 (KT-133) chipset (only used on Matsonic m/b)

Identifying the motherboard manufacturer:

The two characters following the last character of the chipset identification identify the motherboard manufacturer.The following is a list of all the ids and their corresponding manufacturers. Follow the links to go to the individual company pages on my website. Those individual company pages will list all Award BIOS Numbers for that company. (Note: At this moment we are in the process of moving the BIOS Numbers to the individual company pages. Please be patient)

Award Hardware Vendors
Code	Name
00	E-mail Support @ Unicore (subsidiary of Award Software) with BIOS ID data, plus any board ID codes you can find
A0	ASUS
A1	Abit (Silicon Star)
A2	Atrend
A3	Bcom (ASI)
A7	AVT (formerly Concord)
A8	Adcom
AB	AOpen
AD	Amaquest
AK	Advantech
AM	Achme
AT	ASK Technology
AX	Achitec
B0	Biostar
B1	BEK-Tronic Technology
B2	Boser
B3	BCM
C0	Matsonic
C1	Clevo
C2	Chicony
C3	Chaintech
C5	Chaplet
C9	Computrend
CF	Flagpoint
CS	Gainward or CSS Laboratories
D0	Dataexpert
D1	DTK
D2	Digital
D3	Digicom
D4	DFI (Diamond Flower) (Crusader?)
D7	Daewoo
D8	Nature Worldwide Technology Corp
DE	Dual Tech
DI	Domex (DTC)
DJ	Darter
DL	Delta Electronics
E0	Evalue Technology Inc
E1	ECS (Elitegroup)
E3	EFA
E4	ESPCo
E6	Elonex
E7	Expen Tech
EC	ENPC
F0	FIC (FICA)
F1	Flytech Group International
F2	Free Tech or flexus?
F3	Full Yes
F5	Fugutech
F8	Formosa Industrial Computing
F9	Fordlian
FG	Fastfame Technology Co., Ltd.
FI	FIC (FICA)
G0	Giga-byte
G1	GIT???
G3	Gemlight
G5	GVC
G9	Global Circuit Technology
GA	Giantec
GE	Zaapa
H0	Hsing-Tech (PcChips)
H2	HOLCO (Shuttle)
HH	HighTech Information System
HJ	HighTech Information System
I3	IWill
I4	Inventa (Twn)
I5	Informtech
I9	ICP
IA	Infinity (?)
IC	Inventec (notebooks)
IE	Itri
J1	Jetway (Jetboard, Acorp)
J2	Jamicon (Twn)
J3	J-Bond
J4	Jetta
J6	Joss
K0	Kapok
K1	Kamei
KF	Kinpo
L1	Lucky Star
L7	Lanner Electronics Inc.
L9	Lucky Tiger
LB	LeadTek
M0	Matra
M2	Mycomp (TMC) and Megastar
M3	Mitac
M4	Micro-star
M8	Mustek
M9	Micro Leader Enterprises Corp. (MLE)
MH	Macrotek
N0	Nexcom
N5	NEC
NM	NMC (New Media Communication)
NX	Nexar
O0	Ocean (Octek)
P1	PC-Chips
P4	Asus
P6	Pro-Tech
P8	Azza
P9	Powertech
PA	Epox & 2TheMax
PC	Pine
PF	President (dead)
PN	Procomp Informatics Ltd.
PS	Palmax (notebooks)
PX	Pionix
Q0	Quanta (Twn)
Q1	QDI
RA	RioWorks Solutions Inc
R0	Mtech (Rise)
R2	Rectron
R3	Datavan International Corp.
S2	Soyo
S3	Smart D&M Technology Co., Ltd.
S5	Shuttle (Holco)
S9	Spring Circle
SA	Seanix
SC	Sukjung (Auhua Electronics Co. Ltd.)
SE	Newtech or SMT or Professional Technologies, Inc
SH	SYE (Shining Yuan Enterprise)
SJ	Sowah
SL	Winco
SM	San-Li and Hope Vision, Superpower
SN	Soltek
SR	???
SW	S&D (also some A-Corp and Zaapa motherboards use this code)
T0	Twinhead
T1	Taemung or Fentech or Trang Bow
T4	Taken
T5	Tyan
T6	Trigem
TB	Taeil ???
TG	Tekram
TJ	Totem
TL	Transcend Information Inc.
TP	Commate, Ozzo (?)
U0	U-Board (?)
U1	USI (Universal Scientific Industrial)
U2	AIR (UHC)
U4	Unicorn
U5	Unico
U6	Unitron
U9	Warp Speed Ink.
V3	Vtech (PCPartner)
V5	Vision Top Technology
V6	Vobis
V7	YKM (Dayton Micro)
W0	Wintec (Edom)
W1	WellJoin
W5	Winco
W7	Win Lan Enterprise
XA	ADLink Technology Inc.
X3	A-Corp
X5	Arima
Y2	Yamashita
Z1	Zida (Tomato boards)
Z2	???
Z3	ShenZhen Zeling Industrial Co., Ltd.

What follows is a list of BIOS Numbers: please note that we are in process of moving this information to the manufacturer pages, so please also visit those pages if you can't find your BIOS Number here.

SiS 496/497 Chipset

2A4IB000-00: Wintec (Edom) MP046-A
2A4IB000C-00: Kaimei Electronic Corp. KM-S4-1 PCI Rev: 5.1 or Azza 4SIG or Rectron RT-4s3
2A4IBA39C-00: ASI MB-4DSP-1.1
2A4IBADA: AMAQUEST (AP8548)
2A4IBADAC-00: AMAQUEST (AP8548 - Rev.2.0; BIOS rev.D03 09/26/95)
2A4IBADBC-00: AMAQUEST (AP8548 BIOS VER.D12 RELEASE 12/21/95 UMC8669)
2A4IBB12C-00: Lucky Star P407 rev. 2.0
2A4IBB3HC-00: BCM LX770 486 PCI
2A4IBB62C-00: ???
2A4IBF2HC-00: Freetech 486F55
2A4IBG32: ??? (Gemlight GMB-486SPS)
2A4IBG3IC: DTK (?) GMB-486SPS (Gemlight ?)
2A4IBJ11C-00: Jetway/JetBoard J-446-A V2.0
2A4IBJ19C-00: Jetway/JetBoard J-446-A V2.0
2A4IBJ31-00: J-Bond PCI-400C-C
2A4IBK11C-00: ??? (Model: SIS486 PCI)
2A4IBL1B: SIS 486 PCI/ISA MINI-SIZE / SIS 85C496 (Lucky Star ?)
2A4IBL12C-00: Lucky Star (model: ???)
2A4IBL13: Lucky Star 4C-1
2A4IBL13C: Lucky Star LS-486E
2A4IBM91C: MLE (model: ???)
2A4IBP82C: Azza model: 4SPI / chipset: SiS-496/497
2A4IBR02-00: M Technology R418
2A4IBR02C: M Technology R418
2A4IBR03C-00: M Technology R418
2A4IBR04C-00: Rise (Mtech) R418
01/09/96-SiS-496-497/A/A-2A4IBR0ZC-00: M Technology (model: ???)
2A4IBR21: ??? (Model: Terminator)
2A4IBR22C-00: KAIMEI/Jamicon KM-S4-1 ver 4.2 or 4.3
2A4IBR2CC: ARSTORIA AS496
2A4IBS21-00: Soyo (model: ???)
2A4IBS22-00: Soyo 4S A2/A5
2A4IBS29: Soyo 4sa w2/w5
2A4IBS29C-00: Soyo 486 PCI/VESA GREEN MAINBOARD 4SA W2/W5
2A4IBS2hC: SOYO 4SA2
2A4IBS91-00: ??? (Spring Circle ?)
2A4IBT42: ???
2A4IBT42C: Taken PCI-400
SIS-496-497B-PVI-43P3-00: Asus PVI-486SP3

Ali 1439/45/31 Chipset

2A4KC000-09: ???
2A4KCM02-00: Matra (model: ???)
2A4KCM22-00: MyComp (TMC) (model: ???)

Ali 1487/1489 Chipset

2A4KD608c-00: ???
2A4KDB1AC-00: BEK-Tronic Technology BEK-P405
2A4KDF1AC-00: Flytech A47 Green PC V1.0D 5430 PnP
2A4KDJ1H: JetBoard/Jetway J-426
2A4KDJ1HC: JetBoard/Jetway J-426
2A4KDSEH: ???
2A4KDG09C-00: Gigabyte GA-5486AL
2A4KDSEI: ??? (Terminator SMT)
2A4KDSEIC-00: Manufacturer: ALI 1487/89 PCI M/B Model: TERMINATOR-SMT 486/5x86 PCI-22E 9/26/95 ALI I/O ONLY
2A4KDSEK-00: ??? (Model: ALI-1487,89 PCI M/B)
2A4KDW0GC-00: Edom / Wintec MP060 Rev A

VIA 486A/482/505 Chipset

2A4L4J11-00: Jetway/Jetboard J-433

VIA 496/406/505 Chipset

2A4L6J11-00: Jet Board J-437

OPTI-802G-822 Chipset

2A4UKM21-00: TMC PCI48PG/PG4
2A4UKS21-00: Soyo 030F2
2A4UKW01-00: Wintec (Edom) (model: ???)

UMC 8881E/8886B Chipset

2A4X5000C-00: ??? (Model: ST1A REV.B JK-042E)
2A4X5A31: ASI MB-4DUPM/E ver.3.0
2A4X5A3KC-00: ASI MB-4DUPC
2A4X5AN1-00: ??? (F4DXP-UC5-1)
2A4X5AN8C-00: ADI 4DXP-UC5 (F4DXP-UC5D)
2A4X5B03-00: Biostar MB8433/40uuc
2A4X5B08: Biostar MB 8433UUD-A Ver.: 3.1
2A4X5B08C-00: Biostar MB-8433UUD
2A4X5B08C-cc: ??? (Biostar ?)
2A4X5BOYC/-00: Biostar mb 8433 /40 /50uuc-a v:02.10
2A4X5C24-01: Chicony CH-881A
2A4X5C2H-00: Chicony CH-880C
2A4X5C2HC: Chicony CH-880C
2A4X5CF9C: ???
2A4X5E39C-00: ??? (EFA ?)
2A4X5G01-00: Gigabyte GA-486-IM
2A4X5G03: Gigabyte GA-486AM
2A4X5G0HC: Gigabyte GA-486AM/S
2A4X5H01: PcChips 80486 VIP
2A4X5H21-00: Shuttle HOT-433 non PS/2 (I/O: UMC-881/886A)
2A4X5J6h: ???
2A4X5M31: Mitac PH4500AM
2A4X5M32C-00: Mitac PH4500AU
2A4X5M82: ??? (7/11/95-UMC-881/886A-2A4X5M 82-00) (Mustek ?)
2A4X5O01-00: Octek Hippo 12 VIP
2A4X5P01-00: ??? (PT2066 PCI Mainboard)
2A4X5P62-00: ???
2A4X5P6C-00: ???
2A4X5R21-00: ???
2A4X5U03-00: ???
2A4X5UZ4: Umited Microelectronics Corporation model: 1415
2A4X5V32C-00: VTech/PcPartner (model: ???)
2A4X5V3HC-00: VTech/PcPartner (model: ???)

Intel Mercury Chipset

2A597B00-00: Biostar MB-1566TIC_A
2A597S21: Soyo (model: ???)

Intel Natoma (Neptune) Chipset

2A59AE31-00: EFA P54CNPCI
2A59AF52-00: Fugu Tech Neptune-DP (dual-processor)
2A59AG00-0: Giga-Byte (model: ???)
2A59AG01-00: Giga-Byte GA-586IP (v1.6)
2A59AT5BC-00: Tyan (model: ???)

Intel Mercury Chipset

2A59BE31-00: EFA P5/MP4

Intel Triton FX chipset

11/28/95-TRITON-21400000C-00: Gigabyte GA-586ATE
2A59C000C: Ocean Tech. / model: ? or Jamicon KM-T5-2 rev 1.1 or rev 4.1
2A59C000: ??? (km-ts-2 Intel triton FX rev:4,1)
2A59C2CC: Shuttle HOT-541
2A59C429C: ???
2A59C52HG-00: ??? SOYO 5t a2/a5/d2/d5
2A59C52QC-00: SOYO Model: 82430 FX/P54C PCI
2A59CA39: ???
2A59CANA: ??? PCI54IT-1.00 (OEM Version) (F5DX-TN1.1)
2A59CANAC: ??? (Manufacturer: 5DX-TN / Model: F5DX-TN1.1 / PCI54IT-1.00)
2A59CB09-00: Biostar MB 8500TEC (BIOS Date: 06/07/95)
2A59CB09C-00: Biostar MB-8500TEC Model 3
2A59CB1BC-00: ???
2A59CB1CC-00: BESTKEY 5725
2A59CB3HC: BCM SQ595
2A59CB3IC-00: BCM SQ595
2A59CC1FC-00: Clevo (?) (LS-P54CE (B))
2A59CD1IC-00: DTK PAM-0054I
2A59CD1J: Gemlight GMB-P54IPS BIOS
2A59CD1JC-00: Gemlight GMB-P54IPS BIOS v2.22 or DTK PAM 00541-E1
2A59CD1K: Gemlight GMB-P54IPS V1
2A59CD1KC-00: Gemlight GMB-P54IPS V1
2A59CD1NC-00: DTK (model: ???)
2A59CD1JC-00: Gemlight GMB-P54IPS or DTK PAM
2A59CD4LC-00: DFI G586IPB/W
2A59CE3HC-00: EFA P55T-PIO-B
2A59CE6U-00: Elonex W14
2A59CE7BC-00: ??? MB586IT/CMD 646 REV.B665GT
2A59CF21: Freetech 586F52
2A59CF2H: Freetech 586F52
2A59CF2HC: Freetech 586F52
2A59CF2N: PRIDE FREEWAY 1 (this is in fact a Freetech 586F61 board)
2A59CF2NC: Freetech 586F61-PB BIOS Ver. 4.50PG
2A59CF2NC-00: Freetech 586F61
2A59CF2NC-01: Freetech 586F52XS ver. D
05/31/96-82430FX-2A59CF2NC-00: Freetech 586FI-PB
2A59CF32: Full Yes (model: ???)
2A59CF3C: Full Yes (model: ???)
2A59CF3CC-00: Full Yes Intel 82430I VER:B3 ver2.4-I GT (12V EEPROM)
2A59CF3D-00: Full Yes (82430IB ver:2.3-I GT)
2A59CF3DC-00: Full Yes (82430IB ver 2.3 - I GT)
2A59CF3JC-00: Full Yes (model: ???)
2A59CF3KC-00: Full Yes (model: ???) (LS-P54CE?)
2A59CF4C-00: ???
2A59CF52: ??? MB533 (Powertech) or Fugutech M505
2A59CF52C-00: Fugutech M505 (not flashable)
2A59CF54 and 2A59CF54C-00: Fugutech M507 PnP (PcChips) or Concord COA-507 or microgram(MG) model: ??? or ATC1000 (A-Trend) or Amptron PM-7600
2A59CF5H: Fugutech (model: ???) or Amptron PM-7600
2A59CF5HC-00: Fugutech M507 or Amptron PM-7600
2A59CFHC-00: AMPTRON PM-7600
2A59CFN: ???
2A59CG0H-00: Gigabyte GA-586AT BIOS version 1.65
2A59CG0HC-00: Gigabyte GA-586AT
2A59CG0IC-00: Gigabyte GA-586AT
2A59CG0K: Gigabyte GA-586ATE
2A59CG0KC-00: Gigabyte GA-586ATE/ATM
2A59CG0LC-00: Gigabyte 586ATS
2A59CG0N: Gigabyte (model: ???)
2A59CG0NC-00: Giga-Byte GA586-ATEP or GA586-AT or GA-586ATE
2A59CG0PC-00: Gigabyte GA-586ATM/P Rev. 5 or GA-586/ATE
2A59CH2A: Shuttle HOT-541
2A59CH2AC: Shuttle (model: ???)
2A59CH2C: Shuttle HOT-541
2A59CH2CC: Shuttle HOT-541
2A59CH2E: Shuttle HOT-541
2A59CH29C-00: Shuttle HOT-541
2A59CH2CC-00: Shuttle HOT-541 (541WUBxx)
2A59CH2EC-00: Shuttle HOT-541
2A59CHCLC-00: Nexar Technologies, Inc. FX Version 1.23
2A59CI31: IWill (model: ???)
2A59CI3AC-00: IWill P54TS
2A59CI3D: IWill T54TS
2A59CI3DC- 00: Iwill P54TS
2A59CI3E: Iwill PC54TSW2
2A59CI3EC-00: Iwill P54TSW2
2A59CJ1C-00: Jet Board/Jetway J-656B
2A59CJ1CC-00: Jet Board/Jetway J-656B
2A59CJ1D: Jet Board/Jetway J-656C
2A59CJ1DC-00: Jet Board/Jetway J-656C
2A59CJ19C-00: Jet Board J-656
2A59CJ3HC-00: J-Bond PCI500C-E
2A59CK19: Jamicom Triton I
2A59CL1C: Lucky Star (model: ???)
2A59CL1BC-00: Lucky Star P55CE-rev.d-w83707 or P55CE REV. DW83787
2A59CL1CC-00: Lucky Star P55CE-C2
2A59CL1F: ???
2A59CL1FC-00: Lucky Star P54CE 96/5/27 UMC8669
2A59CL7BC: IAC ? AP5200IF
2A59CM29: TMC (My Comp) PCI54IT(S)
2A59CM29C-00: TMC (My Comp) PCI54IT
2A59CM2A: TMC (My Comp) PCI54IT
2A59CM2AC-00: TMC (My Comp) PCI54IT(S)
2A59CM2CC-00: TMC (My Comp) PCI54IT
2A59CM2DC: TMC (My Comp) PCI54IT
2A59CM99C-00: Firenze Research lab (model: ???)
2A59CO09C-00: Octek Rhino 6
2A59CP09C-00: ??? (PT-586-1A)
2A59CP8AC-00: Azza 5IS
2A59CP8DC-00: Azza 5IW
2A59CP91: Powertech MB533
2A59CP9H: Powertech MB532 V1.0
2A59CP9HC: Powertech MB532 V1.0
2A59CP9K: Powertech MB533
2A59CP9L: Powertech MB 533
2A59CP9LC: Powertech MB533
2A59CP9H: ???
2A59CP9HC-00: Powertech MB532
2A59CPFHC-00: ???
2A59CPL: ??? (Model MB 533-U)
2A59CR0AC-00: Mtech (Rise) R525
2A59CR0BC-00: Mtech (Rise) R525
2A59CR0HC-00: Mtech (Rise) R525
2A59CR29C: ??? (km-t5-2)
2A59CR29C-01: ??? (Rectron)
2A59CR2BC-00: ???
2A59CR2CC-00: ??? (Model: ( RT-5TI ) ?? )
2A59CRBC-00: ??? (Version rt512 intel/430fx ver-1.0 1/19/96)
2A59CS2lC-00: Soyo (model: ???)
2A59CS2DC-00: Soyo (model: ???)
2A59CS2H: Soyo 5TA2
2A59CS2HC: Soyo 5TA2
2A59CS2L: California Graphics Sunray II Pro Triton/p54c PCI (5T C2/C5 ) or Soyo 5T C2
2A59CS2LC-00: California Graphics Model SunRay II Pro rev. A1 or Soyo SY-5TC2
2A59CS2P: Soyo SY-5TE2/E5/E0
2A59CS2PC: SOYO 5TCU or 5TE2
2A59CS2QC-00: Soyo 5TA2
2A59CS9AC: Spring Circle ST586
2A59CS9B: Spring Circle ST586
2A59CS9BC: Spring Circle ST586 Rev: P550 or Spring CircleRev. P561-4 Bios ver. 4.51PG
2A59CSCH: ???
2A59CSEB: SMT 5TA
2A59CSEBC: SMT PCI-31 5TA13N
2A59CSECC: SMT 5TA
2A59CSP2: ??? (5T c2/C5/U2/U5/S2/S5)
2A59Cspr-00: ???
2A59CT4A : Taken PCI-590 3
2A59CT4AC-00: Taken PCI590-2
2A59CT49: Taken (model: PCI-590 ?)
2A59CT49C-00: Taken PCI590-2
2A59CT5IC-00: Tyan (model: ???) or Amptron PM-7700B
2A59CT5J: Tyan TITAN III S1468 or S1466
2A59CT5JC-00: Tyan TITAN III S1468
2A59CT5KC: Tyan S1468 (OEM for Newtec, Korea)
2A59CT5M: Tyan (model: ???)
2A59CT5MC: Tyan (model: ???)
2A59CU0DC: U-Board(?) (model:???)
2A59CU2FC-00: AIR 54CPI
2A59CV31C-00: Vtech/PC Partner MP5-TRI
2A59CV39: VTech/PcPartner MP5-TRI
2A59CV3KC-00: Vtech/Pc Partner MB500N
2A59CV3LC: VTech/Pc Partner Platinum NSV/NST/NSP Series
2A59CV3H: VTech/Pc Partner MP5-TRI
2A59CV3HC-00: VTech/PC Partner MP5-TRI
2A59CV3KC-00: VTech/PcPartner MB500N
2A59CV3LC-00: VTech/PcPartner MB500N ( Platinum NSV/NST/NSP series )
2A59CV3NC: VTech/PcPartner (model: ???)
2A59CV59C-00: Vision VT586-2
2A59CW09C-00: Wintec/Edom MP066
2A59CW0HC-00: Wintec/Edom MP - 054
2A59CW0J: Wintec/Edom MP058 Rev:B
2A59CW0JC-00: Wintec/Edom MP058 REV:B
2A59CW0NC-00: Wintec/Edom MP058
2A59CW0QC-00: Wintec/Edom MP068
2A59CW0TC: Wintec/Edom MP064 or California Graphics Sunray II Pro rev. D

Intel Triton II HX chipset

i430HX -_AI5TH2-C-00: Megastar AI5TH Ver 1.0
i430HX-SMC669-(P5HX-A)C-)): Elitegroup P5HX-A
i430HX-W877-(P5HX-B)C-00: Elitegroup P5HX-B
2A59FABAC-00: Totem TM586-IP2
2A59FABDC: ???
2A59FD09C-00: Data Expert EXP 8561
2A59FD19C-00: DTK GMB-P55IPS
2A59FD1A: DTK PAM0055I
2A59FD39: Digicom (model: ???)
2A59FD39C-00: Digicom P54HP H.0.
2A59FD49C-00: Crusader G586 IPC , BIOS Rev. B0 (B+) (or DFI ?)
2A59FD4A: DFI (model: ???)
2A59FD4AC: DFI G586IPC rev B+ or Crusader C586HX
2A59FD4BC-00: DFI G586IPC rev C+
2A59FD4GC-00: DFI G586IPC rev D+ or Crusader C586HX or Global Impact C586HX
2A59FD4HC-00: Crusader C586HX rev D+ (identical to DFI's G586IPC (rev D+))
2A59FD5HC-00: Crusader C586HX rev D+ (or DFI)
2A59FE3CC-00: EFA P55T2PIO-B Ver. 2.07
2A59FE3DC: Micronics D5CUB (or EFA ?)
2A59FF20C-00: Pride Freeway II (this is in fact a Freetech board)
2A59FF29: Pride freeway II (this is in fact a Freetech board)
2A59FF29C-00: Freetech 586F62
2A59FF2A: Pride freeway II plus (this is in fact a Freetech board)
2A59FF2AC-00: PRIDE FREEWAY II+ or Genoa Turbo Express 586 HX v T1B with 512Kb cache onboard or Freetech P586F62T (real manufacturer.)
2A59FFAC-00: ??? (FL51HXA)
2A59FG0B: Gigabyte GA586HX / BIOS Rev 1.11
2A59FG0BC-00: Gigabyte GA-586HX
2A59FG08: Gigabyte (model: ???)
2A59FG09C-00: Gigabyte GA-586DX
2A59FH29C-00: Shuttle/Spacewalker HOT-553 (553WUQxx)
2A59FI3DC-00: Iwill P55TU
2A59FJ1A: Jetboard 656HXA A2 - 06/10/96
2A59FJ1AC-00: Jetboard J-656 HXA
2A59FJ69C-00: Joss Technology (model: ???)
2A59FM29C-00: TMC (MYCOMP) AI5TH
2A59FO09C-00: Ocean (Octek) Rhino-9
2A59FO09C-O8: Ocean (Octek) Rhino-9
2A59FP6BC: ??? (PC550-256)
2A59FP89C-00: Azza PT-5IH
2A59FR0A: Mtech (Rise) (model: ???)
2A59FR0AC-00 : Mtech (Rise) R528WP
2A59FS2AC-00: Soyo SY-5TF (on board; in manual: 5TF0/F2/F5)
2A59FS29C-00: Soyo 5TF0/F2/F5
2A59FS9AC-00: Spring Cirlce ST586 rev.p571
2A59FS9BC-00: Spring Circle P571-3
2A59FSC9: Sukjung SJ-PTM HX
2A59FSN9C-00: Soltek (model: ???)
2A59FT4AC-00: Taken (model: ???)
2A59FT59C-00: Tyan Tomcat I or Tyan Tomcat II or Tyan tomcat III single S1563s or Tyan Tomcat III Dual S1563D
2A59FT5GC-00: Tyan S1562S
2A59FT5JC: Tyan S1563D (Tomcat III Dual)
2A59FU29C-00: ??? (54TPI-PCI/ISA)
2A59FU69C-00: Unitron U7908
2A59FW0BC-00: Wintec MP070
i430HX-W877-(P5HX-B)C-00: ECS (Elitegroup) P5HX-B
05/21/96-82430HX-PI55T2P4C-00: Asus PI-55T2P4C

Intel Triton VX chipset

_AI5TV__C-00: TMC AI5TV
i430vx-p5vx-be: ECS (Elitegroup) P5VX-Be
i430VX-P5VX-B-00: ECS (Elitegroup) P5VX-B
I430VX-02071997C-00: Houston Technologies or PcChips or Mastonic 5500 or Zida (tomato board) 5SVX or MG (Microgram) or Eurone matsonic ms-5010
i430VX-02271997C-00: Eurone model EM-5100V,EM-5200V, EM-5300V, EM-5400V, EM-5500V, EM-5600V, EM-5700V... all the same BIOS
i430VX-12051996C-00: PcChips A101 (V1.4)
i430VX020295C-00: PcCHips A101 (V1.1)
03/03/97-i430VX-10031996C-00: Eurone model EM-5100V,EM-5200V, EM-5300V, EM-5400V, EM-5500V, EM-5600V, EM-5700V... all the same BIOS.....
or Chicony motherboard or PCChips M530 or Concord COA-530 or Alton Model: MBPTRVX256MB,P5,Triton VX,256K PCB,EID or Houston Technologies Part No.MB-M535PC-256K or Elpina or Pine PT-7502 (rev. 5.0)
02/19/97-i430VX-02151997C-00: Amptron PM7900 or Eurone EM-5300
- You don't know which one to choose ? Then take this advice: Go to all the companies websites and compare specs, pictures, manuals with your board. It is possible that some of the above models are the SAME board but I can't garantuee you that a BIOS from another brand will work on your board.
- The above BIOS numbers have bad BIOS encoding (it seems more like a date to me) so it's not that simple to find the manufacturer.
- These boards are real cheap so you'll have to live with less support then a brand like e.g. Abit, Shuttle, Asus,...
08/15/97-i430VX-05051197C-00: ???
2A59G000C-00: ACORP INTERNATIONAL model: PT-5IVL
2A59G009C-00: Tekram Model: P5V30-B4 rev. 1
2A59GAD9C-00: ??? (Dayton Micro) or Anson Group AL576
2A59GAT9C-00: ??? (Model: AVX55C)
2A59GB1AC-00: ??? (model: BEK-5731)
2A59GB3A: BCM SQ 593 or SQ 594
2A59GB3AC-00: BCM SQ593
2A59GB3D: BCM SQ591 or SQ594
2A59GB3DC-00: BCM SQ594 or SQ591
2A59GB3JC-00: BCM (model: ???)
2A59GD0CC-00: Dataexpert EXP8661
2A59GD09C-00: Dataexpert EXP8661
2A59GD49-00: Crusader C586VX Rev B+ (or DFI ?)
2A59GD49C-00: Crusader C586VX Rev B+ or DFI G586IPV Rev B+
2A59GD4F: DFI G586IPV - Rev. C+
2A59GD4FC-00: Crusader C586VX Rev C+ or DFI G586IPV Rev. C+
2A59GD4GC-00: Crusader G586IPV System board Rev. C+ or DFI G586IPV Rev. C+
2A59GE3AC-00: EFA P5TVX-AT
2A59GF29C-00: AMP (Advanced Micro Products) Model: SD-380H s/n 207901 (Freetech ?)
2A59GF2AC-00: Freetech 586F63T
2A59GF2AC-01: Pride Freeway VX (this in fact a Freetech board)
2A59GF2C: Freetech P5F76 (Falcon)
2A59GF2CC-00: Freetech 586F63T
2A59GF2CC-01: Freetech P5F76 (Falcon) (or also known as Activei)
2A59GF3AC-00: Full Yes Industrial Corp FYI-INTEL 82430VX P55C (for UMC 8669 chipset) or BJMT Nimble VX motherboard with UMC chipset
2A59GF3AF-00: Full Yes (model: ???)
2A59GF3B-00: BJMT Nimble TRITON-III VX
2A59GF3BC-00: Full Yes 82430VX P55C / MMX
2A59GF39C: Full Yes Industrial Corp FYI-INTEL 82430VX P55C (for For SMC665IR I/O Chipset) or BJMT Nimble Intel 82430VX PCI Bus Main Board
2A59GF51: Concord COA-530 or Fugutech M530
2A59Gf51C: OEM'ed by Atima, Inc. (http://www.atima.com)
2A59GF51C-00 Fugutech (model: ???)
2A59GF51G-00: Fugutech (model: ???)
2A59Gf59C-00: Fugutech (model: ???)
2A59GFC-00: ???
2A59GG0AC: Giga-Byte GA-586ATV
2A59GG0BC-00: Gigabyte GA-586VX
2A59GG39: Gemlight GMB-P56IPS
2A59GH29: Shuttle Hot-555
2A59GH29C: Shuttle (model: ???)
2A59GH2BC-00: Shuttle HOT-555 or HOT-557 v1.32
2A59GH2IC: Shuttle HOT-557 v1.5
2A59GH2KC-00: Shuttle Hot-555A
2A59GH49C-00: ??? (Model : TR5)
2A59GI3A: Iwill P55TV LITE
2A59GI3AC: Iwill PC55TV
2A59GI69C-00: FLAGPOINT FPM-P5VX
2A59GJ1AC-00: Jetboard/Jetway J 656 VXA
2A59GJ1C: Jetboard/Jetway J656-VXD
2A59GJ1CC-00: Jetboard/Jetway J-656VXB VER:3 (or model J656VXC/J656VXC/P, J-656VXD/J-656VXDP)
2A59GJ1DC-00: Jetway J-656VXD
2A59GJ19C-00: Jetboard (Jetway) 656VXB MB
2A59GJ39C-02: J-Bond PCI500C-H
2A59GJ3AC-01: J-Bond PCI500C-H2
2A59GJ69C-00: JossTech JT-586TS4
2A59GJ6AC: JossTech JT-586TS4
2A59GJ6BC-00 : JossTech (model: ???)
2A59GJ6BG-00 : JossTech JT-586TS4
2A59GJ9C-00: ???
2A59GJAAC-00: ???
2A59GJE9C: ???
2A59GJMBC: Jaton (www.jaton.com)
2A59GK19C-00: KAIMEI/JAMICON KM-T5-V2
2A59GL1C: Lucky Star (model: ???)
2A59GL1CC-00 : Lucky Star 5I-VX2
2A59GL1FC-00: Lucky Star Flamingo/5I-VX1C
2A59GM29C-00: MyComp (TMC) AI5TV
2A59GM39C-00: Mitac PH5400V
2A59GM49C-00: Micro Star MS-5137
2A59GO0DC-00: Octek RHINO 6VX
2A59GP89C-00: Azza PT-5IV
2A59GP8A: Azza PT-5IVL
2A59GP8BC-00: Azza PT-5IV
2A59GP8EC-00: Azza PT-5IV
2A59GP8FC: Azza PT-5IVH
2A59GPCAC-00: Pine ???
2A59GR0AC: M-Tech (Rise) R533
2A59GR0AC-00: M-Tech (Rise) R533 or R552 (ATX)
2A59GR0CC-00: M-Tech (Rise) R533
2A59GS29: Soyo (model: ???)
2A59GS29C-00: Soyo SY-5VA2
2A59GS2GC-00: Soyo SY 5vd2/d5
2A59GS2IC-00: Soyo SY 5VA
2A59GS9A: Spring Circle SP564
2A59GS9C: Spring Circle SP566
2A59GS9AC-00: Spring circle P561-U03
2A59GS9BC: Spring circle ST586 Pentium PCI MB. Rev.P561-4
2A59GSE9: ???
2A59GSE9C-00: SMT vx pentium system ver.vx1-3 or Aresys MB-566
2A59GSEBC-00: SMT (model: ???) or Newtech International P55VX3
2A59GSJCC-00: SPEARMOTHER BOARD SM-M504 INTEL 430VX
2A59GSJFC-00: SowaResearch SR-M504
2A59GSL9: WINCO P55TV2
2A59GSL9C: WINCO P55TV2
2A59GSLC-00-0000C-00: WINCO P55TV2
2A59GSM9: San-Li SL-586V
2A59GSM9C-00: San-Li SL-586V or Acorp 586VX
2A59GSMBC-00: San-Li SL-586V-PLUS or Acorp 5VX32 ver:B
2A59GSMEC-00: ??? (SD-P5VD)
2A59GSN9: ???
2A59GSN9C-00: Soltek SL-52B2 or SL-52D/E
2A59GSNAC: Soltek SL-54A2/A5
2A59GT19C-00: FENTECH/TAEMUNG KBT5A-1 or KBT5A-2
2A59GT1AC-00: ??? (CTX-508) (TRANG BOW)
2A59GT4BC: Taken (TW) PCI 597
2A59GT53: ??? (TM-586IV2) (Tyan ?)
2A59GT5JC-00: Tyan S1470 Titan VX AT
2A59GTBC-00: Totem TM-586IV2A
2A59GTG9C-00: Tekram P5V30-b4
2A59GU49C-00: ??? (Model: 586IL)
2A59GV3CC-00: Vtech/PCPartner (model: ???)
2A59GV3EC-00: Vtech/PCPartner MB520NH or Aristo AM-439VX
2A59GV5EC-00: ???
2A59GV5GC-00: Prime VT 586 VXB (MAYBE?) (also called Otto)
2A59GV5F: Prime VT 586 VXC (also called Otto)
2A59GV5FC: Prime VT 586 VXC (also called Otto)
2A59GV59-00: Prime VT586VX (also called Otto)
2A59GV5EC-00: Prime VT 586 VXB VER:2.4G (also called Otto)
2A59GV5FC-00: Prime VT 586 VX (also called Otto)
2A59GV79C: Company Called Artek or from a company Called PCDC???? Model: 0527 mainboard or AOpen (model :???)
2A59GW09C-00: WinTec (Edom) MP071
2A59GW0AC-00: WinTec (Edom) MP071B
2A59GW0FC-00: WinTec (Edom) MP076
2A59GW0GC-00: WinTec (Edom) MP082
2A59GW59C: Mercury W586VX
2A59GW5AC: Mercury W586VXL
2A59GWS9C-00: "Mercury" Model: w586vx rev 1.2

Note: The following BIOSs have bad BIOS number encoding: All Triton VX BIOS numbers should start with 2A59G ! This is what Award Software/Unicore Software says about it:

"Thank you for your interest in a bios upgrade by Award Software/Unicore Software. Unfortunately your motherboard manufacturer is using an illegal copy of Award Software bios which we can not provide support nor any information on."

2A59H75BC-00: ???
2A59HC5B: Chaplet (model: ???)
2A59HE5BC: ???
2A59HL5BC-00: ???
2A59HT4BC-00: ???
2A59Ht5A: MG (Microgram) (model: ???) or PcChips (model: ???)
2A59Ht5AC-00: Amptron PM-7900 or PcChips M520 or Atima MB586FGCVX
2A59HT5AC: Concord COA-520.
2A59Ht5AC-80 : MG (Microgram) (model: ???)
2A59HT5B: CHAINTECH (?) 5VGM (?)
2A59Ht5B: MG (Microgram) model: ???
2A59Ht5BC-00: PCCHIPS Manufacturing Limited (Fugutech) M520 or M525 or Elpina - Amptron PM7900 orMG Microgram (model:??) or PM-8815A VX-PCI Board or ALTON Aries + or Elpina Topsearch TS-M-8VOC or ASEAGATE VXor Amptron PM-8800 or Concord COA-520 or Pine PT-7502 or EL-J19 or Eurone EM-5100V or Amptron PM8900
- You don't know which one to choose ? Then take this advice: Go to all the companies websites and compare specs, pictures, manuals with your board. It is possible that some of the above models are the SAME board but I can't garantuee you that a BIOS from another brand will work on your board.
- These boards are real cheap so you'll have to live with less support then a brand like e.g. Abit, Shuttle, Asus,...
2A59HT5BC-00: Amptron ? Model: PM-8800A VX-PCI or ASEAGATE VX
2A59Ht5BC-0G: Amptron PM-8815A VX-PCI Board
2A59Ht58C-00: Aristo (?) AM-435VX
2A59HT5BC-00: AMPTRON PM-8816A or Elpina
Note: Normally T5 should correspond to a Tyan board, but it does not (bad BIOS encoding). t5 doesn't correspond to a Tyan board too.

Intel Triton TX chipset

07/10/97-82430TX-<TX97-E>C-00 : Asus TX97-E
i430TX-SMC67X-ATC-5030C-00: Atrend ATC 5030C
i430TX-N6309-TX-430M0C-00: Sunstar TX-430M
i430TX-P5TX-A00C-00: ECS P5TX-A
i430TX-P5TXBproC-00: ECS-Elitegroup P5TX B-pro (Socket7, Baby-AT)
2A59I000C-00: ???
2A59IAB9C-00: AOpen AP5T
2A59IB3B: BCM SQ576
2A59IB3K: BCM FR550
2A59IB3IC-00: BCM SQ575
2A59ID19C-00: DTK GMB-P57IPS
2A59ID4AC-00: DFI (model: ???)
2A59ID4BC-00: DFI 586ITBD
2A59IE39C-00: EFA (model: ???) or Yellow Dragon P5TX-AT
2A59IEC9C-00: ENPC EP-PT11
2A59IECHC-00: ENPC EP-PT11
2A59IFDC and 2A59IFDCC-00: Atima (model: ???)
2A59IFDEC-00: Global Circuit Technologies GCT-8ITB or DataExpert ExpertColor TX430II
2A59IG09C-00: Gigabyte GA586TX
2A59IG0BC-00: Gigabyte GA586ATX
2A59IG0DC-00: Gigabyte GA-586 TX3
2A59IG0EC-00: Gigabyte GA-586ATX3
2A59IG0GC: Gigabyte GA-586TX2
2A59IG0HC: Gigabyte GA-586TX2
2A59IH2EC-00: Shuttle HOT-565
2A59IH2HC-00: Shuttle HOT-569 or Acusharp Excalibur TX1569 (this m/b is identical to the Shuttle HOT-569)
2A59II3AC-01: Iwill P55XB2
2A59II3BC: Iwill P55XUB
2A59IJ19C-00: Jetway/Jetboard J-5TXBR2
2A59IJA9C-00: ??? ("Turbo Electronics")
2A59IK19C-00: Kamei (model: ???)
2A59IK1CC-00: Kamei (model: ???) or Informtech 533T-AT or Mentor BN533T
2A59IL1CC-00: Flamingo(??) MB-FLM-TX01 or Lucky Star 5I-TX1
2A59IM29C: TMC (MyComp) (model: ???)
2A59IO09C-00: Octek Rhino 15
2A59IPNAC-00: Procomp Informatics B587 v1.2
2A59IPN9C-00: Compower Group/ Procomp AL-B586V1.1
2A59IS2BC-00: Soyo 5BT5
2A59ISE9C-00: SMT TX3
2A59ISH9C-00: Sye 5700
2A59ISM9C: Acorp International A-5TX32
2A59ISNCC: Soltek SL-54P5
2A59ISN9C: Soltek SL-54P5
2A59ISWAC: Acorp SD-P5TD
2A59ISWBC: Acorp 5TX52 ver:E or Zaapa ZP-P5TA
2A59IT5AC-00: Tyan S1570
2A59ITG9C: Tekram P5T30B4
2A59IV39C-00: Vtech/PcPartner MB540N or Aristo AM 430TX (also sold under the name Yellow Dragon TX board)
2A59IV3AC: Aristo (model: ???)
2A59IV3BC: Aristo (model: ???) or Yakumo Y586TX-1
2A59IV3EC: Aristo 430TX+
2A59IV3FC: Aristo (model: ???) or Flag Point TX Lite 512K
2A59IV3GC: Aristo AM-430TX+
2A59IV59C: Vision Top Technology Co Ltd VT-586TX
2A59IVAC-00: ???
2A59IW59C: Mercury W586TXA

VLSI VL82C594 Chipset

2A5G7D4AC-00: DFI G586VPM
2A5G7D49-00: Dimond Flower inc. (DFI) - G586VPM:B1
2A5G7D49-04: ??? (DFI ?)
2A5G7SEAC-00: Professional Technologies, Inc (model: ???) (probably out-of-business)

VLSI Lynx VL82C541/VL82C543

2A5GBD49C-00: DFI G586VPS Pro Rev. B1+

SiS 501/02/03 Chipset

SIS 501-503-PI-54SP4-00: ???
2A5IA000: America Digicom Corporation (check www.digicomgroup.com / E-mail : tech@digicomgroup.com / Phone: (516) 496-2323 (214) 480-9998 (408) 245-1580) )
2A5IA531-00: JBond PCI500C-B
2A5IAAD1-00: Anson Group AP9541
2A5IAF20-00: Freetech (model: ???)
2A5IAG09: Giga-byte GA-586AS
2A5IAG31-00: Gemlight GMB-P5SPC SiS 550X
2A5IAG32: Gemlight GMB P54SPS P54C PCI Green Mainboard
2A5IAG32-00: Gemlight GMB-P54SPS
2A5IAG3A-00: DTK PAM-0035S
2A5IAI32-00: ??? Model: P54 AS/ASW (Iwill ?)
2A5IAJ31-00: JBOND PCI500C-B
2A5IAJ51-00: ???
2A5IAM29C: TMC PCI54SP
2A5IAM81-00: Mustek (model: ???)
2A5IAM91-00: ??? (Model: P54C SI-VII) (MLE ?)
2A5IAMB1-00: Mecer B930-CCI
2A5IAO0-00: Octeck/Ocean Bison VI PCI
2A5IAPFA-00: President P54SA (B)
2A5IAPFA-01: President P54SA (B)
2A5IAR01-00: Rise (Mtech) model: R526(?)
2A5IAR21-01: ??? (TERMINATOR Model : 80486PCI) - Manufacturer is Rectron (no www page-no customer service)
2A5IAS21-00: Soyo (model: ???)

SiS 5501/02/03 Chipset

2A5ICABA-00: Aopen (model: ???)
2A5ICABBC-00: AOpen AP5CS
2A5ICAM1: Mirage M54PS
2A5ICG3A: Gemlight Computer Ltd GMB-P54SPS P54C PCI Green Mainboard
2A5ICJ3A-00: J-Bond PCI500C-D
2A5ICJ61-00: JOSS JT-586IP4
2A5ICN01: ??? ("Industrie Slot CPU" from DSM Computer)
2A5ICR2AC-00: ??? (Version: RT-5SI 550X CHIPS BIOS VER:3.0)
2A5ICRCA: ???
2A5ICS24-00: Soyo (Model: ???)
2A5ICU51-00: Unico model: VE501
04/21/95-SiS-501-503-PI-54SPA-00: Asus PCI/I-AP54S

SiS 5511/12/13 Chipset

2A5IDAN9C-00: ??? 5DX-SS1D
2A5IDB3A: BCM SQ 599
2A5IDB3AC-00: BCM SQ 599 / P54SB
2A5IDBOB: Biostar MB-8500SAC
2A5IDBOBC: Biostar MB-8500SAC (Chipset: SIS551X / I/O: UMC8669)
2A5IDF2: ??? (Freetech ?)
2A5IDF2BC-00: Freetech 586F60
2A5IDF2DC-00: Freetech 586F60
2A5IDG09C-00: Giga-Byte GA-586AVS
2A5IDG3AC-00: Gemlight GMB-P54SPV
2A5IDJ11C: Jetway/Jetboard J-646C
2A5IDJ1W: Jetway/Jetboard J-646A
2A5IDJ69C-00: JossTech JT586IV4
2A5IDJXC-00: Jetboard (Jetway) J-646C
2A5IDM2AC-00: TMC (Mycomp) PCI54ST
2A5IDM2CC-00: TMC (Mycomp) PCI54ST
2A5IDM99C: (MLE SPI.VIII ??)
2A5IDR0A-00: Rise (Mtech) R526
2A5IDR0AC-00: Rise (Mtech) R526
2A5IDR09C-00: Rise (Mtech) R526
2A5IDS2BC-00: ??? (Soyo ?)
2A5IDS99C-00: Spring cirlce P5C01
2A5IDS9AC: ??? (Spring cirlce ?)
2A5IDSADC: YUKON P54C

SiS 5101-5103 chipset

2A5IEAC1C-00: ???
2A5IEACAC-00: Spica (??) Spica-sc9700
2A5IEDE9C: ???

SiS 5596/5597 Chipset

2A5IFG3AC-00: Gemlight GMB-P56SPC
2A5IFJ19C-00: Jetboard (Jetway) J-648A SiS UMA Pentium
2A5IFP39C: Palit PCI54IT(?) ot M100(?)

SiS 5571 Chipset

2A5IHAKAC-00: Advantech PCM-5862
2A5IHD49C-00: DFI 586STC
2A5IHG09C-00: Gigabyte GA-586S
2A5IHJ9C-00: ??? (ASX55C)
2A5IHR09C-00: Rise (Mtech) R534 or R534WP
2A5IHR0CC-00: Rise (Mtech) 534G
12/02/97-SiS-5571 (P5SV-B)C00: ECS/Elitegroup P5SV-B

SiS 5582/5597/5598 Chipset

2A5IIG0BC: Gigabyte GA-586S2
2A5IIG39: ??? (P5ST-A)
2A5IIG5CC-00: GVC FR500
2A5IIJ1DC-00: J-Mark J-TX98B

SiS 5591 Chipset

2A5IK000C-00: Acer Labs(?) MTX-A512
2A5IKG0AC-00: Gigabyte GA-586SG
2A5IKR09C-00: M-Tech Mustang R-581a
06/01/98-SiS-5591-P5SD-B-00: Elitegroup P5SD-B

Ali 1449/61/51 Chipset

2A5KB000: FiTON or Microstar HY514400A J-70F or Premio 5112
2A5KBB01-00: Biostar (model: ???)
2A5KBD31: Digicom (model: ???)
2A5KBG01: Gigabyte (model: ???)
2A5KBG02-00: Gigabyte GA-586AP Rev 2
2A5KBG03-00: Gigabyte GA-586AL/S Rev.2A
2A5KBH01-00: PCM7100 (ALI) (Hsin Tech ?)
2A5KBH03: Hsin Tech (model: ???)
2A5KBM01-00 : ??? (P54CAIO) (Matra ?)
2A5KBP51-00: ???

ALi 1521/23 Chipset

2A5KFAN9C-00: ??? (model: Amstrad MT9) (Model: f5dx-al1) or ADI F5DX_ALI1
2A5KFE79: ???
2A5KFP69C-00: SBC PC-560

ALi IV+ M1531/M1543 Chipset (also known as Super TX chipset)

2A5KI000C-00: Micom MTX-A512 TXPro+
2A5KIB09C-00: Biostar M5ATA

ALi Alladin V Chipset (Super 7 chipset)

2A5KKF9AC-00: Fordlian (model: ???)
2A5KKG0AC-00: Gigabyte GA-5ATX
2A5KKI3AC-00: Iwill XA100Plus
2A5KKSMAC-00: Superpower SP-A586B
2A5KKTP9C-00: Commate S7AX

VIA VT82C570

2A5L7J11-00: Jet Board J-636
2A5L7J19: JeT Board J-636
2A5L7J19C-00: JeT Board (Jetway) J-636
2A5L7M89C-00: Mustek (model: ???)

VIA VT82C570M

2A5L9AK96-00: ??? (Model: PCM-5860 SBC)
2A5L9M49-00: Micro Star MS-5117
2A5L9M49C-00: Micro Star MS-5117
2A5L9M95C-00: ???

VIA Apollo VP1 Chipset (sometimes relabeled as VXPro chipset)

2A5LA000-01: ??? (Chipset : SIS-501-503)
2A5LAE39: EFA P5V580-AT-3
2A5LAG32: Gemlight GMB-P54SPS
2A5LAH09: AMPTRON PM8400
2A5LAH09C: Check my VXPro page
2A5LAL19C: Lucky Star 5V-2
2A5LAL1AC: Lucky Star (model: ???)
2A5LAM09: Matra (model: ???)
2A5LASMAC-00: FKI SL586VT-II (Fong Kai Industrials Co.- MILLENIUM Mainboard) / VIA Chipset VT82C580VP or Winco SL-586VT-2

VIA Apollo VP2 Chipset (sometimes relabeled as AMD640 chipset)

2A5LCH29C: Shuttle HOT-603

VIA VPX Chipset (sometimes relabeled as VXPro+ chipset)

If you have IDE driver problems with your 'VxPro+'-chipset use the VIA IDE drivers at Kevin's Triton drivers page
2A5LD000C: FYI (?) VIA 83669
2A5LD009C-00: Winco Model: W-P55VT2 Rev-D
2A5LD00AC-00: Winco W-P55VT2 Rev. D
2A5LDD49C-00: DFI P5BVP Rev.A+
2A5LDE3AC-00: EFA P5V580-AT-C
2A5LDH09C: Check my VXPro+ page
2A5LDL1BC-00: Lucky Star (model : ???)
2A5LDL1CC-00: Lucky Star 5V-1A
2A5LDM29C: TMC (MyComp) AI5VP
2A5LDM99C: M Technology M-549
2A5LDO0AC-00: Octek/Ocean Rhino 12+
2A5LDS2FC: Soyo SY 5EAS5
2A5LDSADC-00: ??? (NMC-5V2A)
2A5LDSH9C-00: ??? (SV-P55V)
2A5LDSMBC: San-Li 586VPXT3 Ver. C
2A5LDV3AC: VTech/PcPartner (model: ???) or Eagle VPX-200B or Digimate T5DX-VPX1E-1
2A5LDV3BC-00: VTech/PcPartner (model: ???) = FlagPoint MB, RoadRunner VIA 512K
2A5LDV3DC-00: VTech/PcPartner VIB804DSE or Digimate T5DX-VPX2E
2A5LDW5DC-00: Winco W-P55VT2 REV.D1 (SMC)

VIA Apollo (M)VP3

VP3-586B-SMC6-ATC-5220C-01: Atrend ATC -5220
2A5LE00C-00: Full Yes FYI-597
xx/xx/xxxx-VP3-586B-W877-2A5LECS9C-00: Gainward 5VPA
02/24/1999-MVP3-586B-W87-2A5LECV9C-09: California Graphics Photon 100 HC
2A5LED4CC-00: DFI P5BV3+ (Rev AA+)
2A5LED4DC-00: DFI P5BV3+ (rev. CE0+)
2A5LEF3AC: Full Yes FYI-VIA 597
2A5LEGEAC-00: ZAAPA (?) ZP-5V2
07/15/1998-577+ITE8661-2A5LEH0AC-00: PcChips M577 = Amptron PM9900
2A5LEJ19C-00: Jetway (model: ???)
2A5LEL19C: Lucky Star (model: ???)
2A5LENMCC-00: NMC 5VMMX
2A5LEP8FC-00: Azza PT-5VMD
2A5LES2AC-00: Soyo SY-5EHM
2A5LES2BC-00: Soyo SY-5EMA
2A5LESH9C: ???
2A5LESN9: Soltek (model: ???)
2A5LESNAC-01: Soltek SL-54T5
2A5LESNCC: Soltek SL-54U5
2A5LESNEC: Soltek SL-56D5/D1
2A5LESW9C: Acorp 5VIA5S
2A5LET59C-00: Tyan Trinity (S1592)
2A5LET5AC-00: Tyan Trinity (1590S)
2A5LETGAC: Tekram P5mvp-A4
2A5LEV3GC-00: Eagle E-MVP3B
2A5LEV5BC-00: Vision S7-MVP3
2A5LEV5CG-00: Vision S7-MVP3

Forex 601A-613 Chipset

2A5R5S91: ??? (Model: Maximus or SF586 rev VIP3A) (maybe from Spring Circle)

Opti 82C822/596/597 Chipset

2A5UI000-00: ??? (globylyst 330 360 at 66mhz) (586 PCI S/N:AV9226034-88) (PB5500C BIOS R1.02) (S/N:TB49104058) or PB5500C (Mitac?)
2A5UIA31: ASI MB-5DVP
2A5UIB01: Biostar MB-1566PAT-B VIP BUS
2A5UID31-00: Digicom P5-VP
2A5UIH21: Shuttle HOT-523
2A5UIH31: ??? (Foxen) (Chipset : OPTI 82C596/82C597/82C822) //// Manufacturer: HEDONIC
2A5UIJ10-00: ??? (J-503 VIP) (Jetway/Jetboard ?)
2A5UIQ11-00: QDI VIP596P93 V2.0

Opti 82C822/571/572 Chipset

2A5ULG10-00: ???
2A5ULM20: TMC PCI58PL
2A5ULT40: Taken (model: ???)

Opti 82C822/546/547 Chipset

2A5UMA31: ASI MB54VP ver 2.1
2A5UMA32: ASI MB54VP ver 2.1
2A5UMB01-00: ??? (a generic MB-1590PCT) (Biostar ?)
2A5UMD41-00: ???

Opti Viper-M 82C556/557/558 Chipset or Opti Viper 82C556/557/558)

2A5UND4J-00: DFI G586OPC
2A5UNH01-00: PC Chips model 529 or Elpina/Amptron PM-7400 Version 1.00
2A5UNH01C-00: Hsin Tech (marketted by PC Chips as their model number 519 or 529 or Elpina
2A5UNH09C-00: Hsin Tech (marketted by PC Chips as their model number 529)
2A5UNM2LC-00: TMC (Mycomp) (model: ???)
2A5UNO09C-00: ???
2A5UNSA9: ???
2A5UNSAAC-00: Seanix Technology, Inc. Opti-Viper Board Rev 1.0

UMC 82C890 Chipset

2A5X7B04-00: ??? MB-8500-UUR-A (Biostar ?)
2A5X7B0A-00: Biostar MB-8500 URC
2A5X7C2H-00: ??? model:CH-890A / Chipset: ??? / BIOS ver.4.50G) (Chicony ?)
2A5X7C2H-02: Chicony CH-890A
2A5X7D7H-00: Daewoo CPC-4600
2A5X7H29C-00: Shuttle HOT-539C Rev. 2.0

UMC UM8886BF/UM8891BF/UM8892BF Chipset

2A5X8G09C-00: Gigabyte GA586AM
2A5X8PCAC-00: Pine PT730AB or PT 730A
2A5X8PC9C: Pine PT-730B

Intel 440FX chipset

2A69HABAC-00: AOpen AP65
2A69HD49C: DFI (model: ???)
2A69HF59C-00: Fugu Tech M701
2A69HG09C-00: Gigabyte GA-686NX
2A69HH2AC-00: Shuttle HOT-617
2A69HI3AC-00: Iwill P6NS
2A69HJ1A: Jetway (model: ???)
2A69HJBC-00: Jetway (model: ???)
2A69HJ1U: Jetboard J-756A Pentium Pro Main Board
2A69HL19C-00: Lucky Star (model: ???)
2A69HL1CC-00: Lucky Star (model: ???)
2A69HP8AC-00: Azza (model: ???)
2A69HR0AC-00: Mtech (Rise) R651
2A69HS29C-00: Soyo (model: ???)
2A69HSN9C-00: Soltek PENTIUM PRO 82440FX
2A69HT5JC-00: Tyan Titan Pro 1668ATX
09/02/96-i440FX-PIXP6NP5C-00: Asus P/I-XP6NP5

Intel 440LX/EX chipset

i440lx-p6lx-ap: Elitegroup P6LX-A+
i440LX-W977-ATC-6130C-00: Atrend ATC-6130
i440EX-ITE8679-CB64X-EXC-00: Daewoo CB644EX
2A69JB0DC: Biostar M6TLC
2A69JD49C-00: DFI P2XLX
2A69JD4YC-00: DFI P2BLX
2A69JECBC-00: ENPC KL-21
2A69JFDAC-00: DataExpert (MLX8440-0A/0B)
2A69JFDBC-00: DataExpert (ExpertColor MLX8440)
2A69JFD9C-00: Atima???(MBP2LX)
2A69JG09C: Gigabyte GA-686LX
2A69JG0EC: Gigabyte GA-686LX4
2A69JG0FC: Gigabyte GA-686LX3
2A69JG0NC: Gigabyte GA-6ex
2A69JH2BC: Shuttle HOT-637
2A69JH2DC-00: Shuttle HOT-671 (Intel EX chipset)
2A69JI13CC: Iwill (model: ???)
2A69JJ1BC-00: Jetway J-7XB
2A69JL1AC-00: Lucky Star 6ALX2 (Jumperless)
2A69JL1DC-00: Lucky Star 6LX2
2A69JO09C-00: Octek/Ocean (model: ???)
2A69JPC9C-00: Pine TL-LX01
2A69JPNAC-00: Crusader C688-LX
2A69JP8BC: Azza PT-6IL
2A69JQ1B: QDI Legend III board also know as legenX III
2A69JS2BC: Soyo 6KB
2A69JS2CC: Soyo 6KB
2A69JSMCC: San-Li SP-P2LXC
2A69JSNFC-00: Soltek SL-66B
2A69JSNHC-03: Soltek (model: ???)
2A69JSWAC-00: S&D Motherboard P6ALXA
2A69JT19C: Trang Bow TB-6LX
2A69JTG9: Tekram P6L40-A4
2A69JV3DC-00: VTech HIS-P6EX4-A3
2A69JV5BC-00: Vision Crusader P2-LX

Intel 440BX chipset

i440BX-ITE8679-CB641XBXC-00: Daewoo CB641X-BX
i440BX-<<P2B>>-00: ASUS P2B
2A69KB0BC-00: Biostar M6TBC
2A69KB0EC-00: Biostar M6TBA
2A69KB3EC-00: BCM QS440BX (make sure you get right size BIOS)
2A69KD42C-00: DFI P2XBL Rev B+
2A69KDLCC-00A: Delta MP2-BX-X V1.00
2A69KEC9C: ENPC EP-MB21
2A69KG00C-00: Gigabyte GA-6BXD
2A69KG09C-00: Gigabyte GA-686BX
2A69KG0AC-00: Gigabyte GA-6BA
2A69KG0DC-00: Gigabyte GA-6BXC
2A69KG0EC-00: Gigabyte GA-6BXE
2A69KJ3BC-00: JBond PCI600-K
2A69KNMBC: NMC 6BAX+
2A69KPNAC-00: Procomp PM-B683 ver. 1.0
2A69KPNDC-00: Procomp PM-B687
2A69KR0BC-00: MTech (Rise) R-657E
2A69KS2GC-00: Soyo 6BB v1.0 or 6BE+
2A69KS2HC-00: Soyo SY-D6IBA
2A69KSMAC-00: San-Li SP-P2BXA
2A69KSNGC-00: Soltek SL-67EB
2A69KSW9: S&D SD-P6BA
2A69KT1BC-00: Trang Bow TB-6BX
2A69KTG9C-00: Tekram P6B40-A4X
2A69KTPAC-00: Ozzo / Commate P2BXA
2A69KW09C-02: Wintec/Edom W6BXA
2A69KW0DC-00: Wintec/Edom W6BXA-0

VIA Apollo Pro chipset

2A6LFTG9C: Tekram P6A-PROA5

VIA Apollo Pro Plus chipset

2A6LGH29C: Shuttle HOT-661V
2A6LGSH9C: Shing Yunn Tech SM-P6VBX2

Intel Neptune EISA Chipset

2B59AT51-00: Tyan Tempest II S1462
07/27/94-NEPTUNE-P/I-5NP4-00: Asus PCI/I-P54NP4 P.C.B. Rev 1.2 and up

EFAR EC802G-B Chipset

2C403031-00: AT&T GIS GLOBALYST 330 - 360
2C403D31: Mitac Model: Ih4077D (or Digicom ?)
2C403D46-00: ??? (Model: G486GVB) (DFI ?)
2C403U01-0B: EFAR EF9417
2C403U0Z-00: Uniboard KS-TG919 Ver:3.1 (Chipset SIS-471/B/D-B 01/17/96 ???)

HiNT Chipset (consists of HMC HM82C206 and HiNT CS8006.)

2C4D2000-00: WIN Technologies MV045

SiS 461 Chipset

2C4I7D11: DTK (model: ???)

SiS 471B/E Chipset

2C4I8F21-00: Genoa (model: ???) or firenze 486 VL.VII (or Freetech ?)
2C4I8F30-00: ??? (Full Yes ?)
2C4I8G01-00: Gigabyte GA-486VS
2C4I8G30: Gemlight(?) VL/ISA-PB486P3
2C4I8S21: Soyo 25M/N/P / 25L (not flashable)

SIS 85C471B/E/G Chipset

2C4I9000-00: ??? (made in Taiwan -4SGS-3VL Ver:3.2)
2C4I9521-00: ??? 03/08/95-SIS-85C471B/E/G
2C4I9523: ??? 09/26/94-SIS-85C471B/E/G
2C4I9AD0: ???
2C4I9C21: Chicony CH-471B
2C4I9C21-08: Chicony C471
2C4I9E30-00: EFA 4DMS-HL3G
2C4I9F20-01: Freetech 486F38X or Genoa 486VLGX4
2C4I9F21-00: Freetech (model: ???)
2C4I9F30-00: Full Yes (model: ???)
2C4I9F32-00: Full Yes (model: ???)
2C4I9G01: Gigabyte GA-486VF (Rev. 8B)
2C4I9G30: Gemlight GMB-486SG
2C4I9M92-00: MLE (model: ???)
2C4I9M93: MLE (model: ???)
2C4I9R01: M-Technology (Mtech) R407
2C4I9P82-00: Azza (model: ???)
2C4I9S21-00: Soyo 025N2
2C4I9S22: Soyo (model: ???)
2C4I9S23: Soyo 25J/K/L
2C4I9T60: Trigem 486SQR
02/08/94 SIS-85C471-I486SV2G-80: ???
10/11/94-SIS-85C471-I486-SV2G00: (Chipset: SIS 85C471), Model: VL/I-486SVGOX4 Manuf: ???

Winbond-83C491

2C4J6D01-00: Dataexpert Expertboard 4045

ALI 14296 Chipset

2C4K9D00: Dataexpert (model: ???)
2C4K9D01-00: Dataexpert EXP4049
2C4K9P40: ???

VIA VT496G Chipset

2C4L6J11-00: Jetway/Jetboard J-435-B

OPTI 82C895/82C602 Chipset

2C4UK000-00: ??? (DIGIS ?? Model: 486dl)
2C4UKB11-00: ??? (BEK-V429S)
2C4UKD01: Dataexpert EXP4044VL
2C4UKM21-00: TMC (MYCOMP) PAT 48 PG (http://www.tech.mynix.com/dsupport/)
2C4UKJ10: Jetway/Jetboard J-403TG 486 GREEN VLB (V2.1)
2C4UKJ11: Jetway/Jetboard J-403TG
2C4UKSA0-00: Seanix S895 Rev 2.A
2A4UKS21-00: Soyo 030-F2
2C4UKW01-00: ??? (Model: MV035F) (Wintec (Edom) ? or American Digicom ?)
2C4UKW03-00: ???

UMC UM82C491/82C493 chipset

2C4X2000-1b: ??? (BEK-V419)
2C4X2A30: ASI VESA BUS 486 MB-4D33/50NR-02
2C4X2A30-30: ASI VESA BUS MB-4D33/50NR-02
2C4X2A51: ???
2C4X2M11: ??? (MB453-02XA.GC ???)
2C4X2M31: Mitac pwa-lh4077c //Computer AT&T Model 1455
2C4X2N31: ???
2C4X2U02-00: ???

UMC UM498F/496F Chipset

2C4X6000-00: ??? / BIOS date: 07/11/95 / IO-controller: UMC-498GP / F4DXL-UC4
2C4X6401: ??? (D 40 486 BIOS DG 200)
2C4X6A31-00: ASI (Aquarius Systems Inc) MB-4DUVC VL/Green
2C4X6AD1: ???
2C4X6G22-00: ???
2C4X6H01-00: Hsin Tech Cheetah
2C4X6H02-00: ??? (HSIN-TECH)
2C4X6S21: Soyo model: Manual says:25Q/R Motherboard says:25R2
2C4X6U01-00: UMC UMB486/496

ASUS motherboard numbers

All Asus BIOS ID numbers at the top of the screen, just above where the system memory count occurs, contain # 401A0 - XXXX.
The A0 indicates ASUS as the manufacturer the four digits following the dash indicates the BIOS revision level. Thus it is easy to identify whether or not you have the latest BIOS version or not.
At the bottom of the same screen you have more information, in the following order; A date, which is the date of the motherboard manufacture, then the Chipset used, the model of ASUS motherboard and finally the revision of the motherboard.

Acer motherboard numbers

Identification Acer BIOS string: eg. ACR6BE00-M00-940825-R02-CO : ACR6BE00-M00 is the name of the motherboard; 940825 is the date; R02-CO is the version.
For updated BIOS check my Acer page.
ACR6BE00-M00-940825-R02-CO: Acer ACROS
ACR6BE00-M00-941005-R02-F0: Acer A1G+ or A1GX-1
ACR6BE00-M00-R02-F0: Acer AcerPower 486DX2/66
ACR6DE00-M00-94026-R03-G0: Acer V20
ACR8BE00-I03-940824-R0I-E2: Acer (model: ???)
ACR9AE00-I05-950822-R01-N5: Acer V30-II
ACR9CE00-M01-950726-R04-B0: Acer V12LC
ACR9CE00-M01-950904-R04-C7: Acer (model: ???) (aa774.003)
ACR9CE00-M01-951004: Acer aspire
ACR9CE00-M01-951004-R04-B0T: Acer V12LC
ACR9CE00-M01-950310-R02-E0: aceracros p-75
ACR9CE00-M01-950904R04-C7: ???
FUJ9CE00-M01-950724-R03-A1-F3: Acer (model: ???)

Not categorised

2B597G00-00: ??? (GA-586 IM Rev.2)
08/16/94-EFAR-B-2C403D42-00: EFAR/DFI ??? Model: EVB (G486-EVB BIOS Rev A)
Contaq 82C596-2A4H2000-01: Galaxy II 4VIP 1 (Chipset: Cypress 82C599/82C596)
VT82C505-2A4C4000-00: ???
VT82C486A-214L2000-00 is a FIC 486-GVT-2
2C4VK11-00: ???

DISCLAIMER: Use flash BIOSs at your OWN risk!! I can not be held responsible for any damage to your computer !