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BIOS Updates for VIA chipsets motherboards

Apollo KT133 (Socket A)

Models  Chipsets
part no. 
Platform PCB ID *3 Download Utility

Date code

Manual *2
K133ASA-911

VIA Apollo KT133
(VT82C686A)
(VT8363)

ATX

35-8911-XX-XX

awdf791

2K010223

All Ver.
K133MSA-965 VIA Apollo KT133
(VT82C686A)
(VT8363)
Micro ATX 35-8965-XX-XX awdf791 2K010223 All Ver.
K133ASA-970

VIA Apollo KT133
(VT82C686A)
(VT8363)

ATX

35-8970-XX-XX

awdf791

2K010223

All Ver.

K133ASA-981

VIA Apollo KT133
(VT82C686A/B)
(VT8363)

ATX

35-8981-XX-XX

awdf791

2K010807

All Ver.

K133MSA-982/
K133MSA-B982

VIA Apollo KT133
(VT82C686A/B)
(VT8363)

Micro ATX

35-8982-XX-XX

awdf791

2K010223

All Ver.

K133MSA-965/A

VIA Apollo KT133
(VT82C686B)
(VT8363)

Micro ATX

35-8982-XX-XX

awdf791

2K010223

All Ver.

K133ASA-206/
K133ASA-B206

VIA Apollo KT133
(VT82C686A/B)
(VT8363)

ATX

---

awdf791

2K020122

All Ver.

Apollo KT133A (Socket A)

Models  Chipsets
part no. 
Platform PCB ID *3  Download Utility

Date code

Manual *2
K133AASA-998/
K133AASA-B998

VIA Apollo KT133A
(VT82C686A/B)
(VT8363A)

ATX

35-8970-XX-XX

awdf791

2K021105

All Ver.
K133AASA-220/A

VIA Apollo KT133A
(VT82C686B)
(VT8363A)

ATX

35-8970-XX-XX

awdf791

2K021105

All Ver.

K133AASA-220/B

VIA Apollo KT133A
(VT82C686B)
(VT8363A)

ATX

---

awdf791

2K021105

All Ver.

K133AASA-220/C

VIA Apollo KT133A
(VT82C686B)
(VT8363A)

ATX

---

awdf791

2K021105

All Ver.

K133AMSA-246

VIA Apollo KT133A
(VT82C686B)
(VT8363A)

Micro ATX

---

awdf791

2K021105

All Ver.

ProSavage PM133 (Socket 370)

Models  Chipsets
part no.
Platform PCB ID *3  Download Utility

Date code

Manual *2
PM605MS3-C912/
PM605MS3-912C/
PM605MS3-B912C

VIA PM133
(VT82C686A/B)
(VT8605)

Micro ATX

35-C912-XX-XX

awdf791

2K010227

All Ver.

PM605AS3-C913/
PM605AS3-913C/
PM605AS3-B913C

VIA PM133
(VT82C686A/B)
(VT8605)

ATX

35-C913-XX-XX

awdf791

2K010227

All Ver.

ProSavage KM133 (Socket A)

Models  Chipsets
part no. 
Platform PCB ID *3  Download Utility

Date code

Manual *2
KM133ASA-995/
KM133ASA-B995

VIA KM133
(VT82C686A/B)
(VT8365)

ATX

35-8995-XX-XX

awdf791

2K021204

35-8995-XX-00
35-8995-XX-01
& later

KM133MSA-996/
KM133MSA-B996

VIA KM133
(VT82C686A/B)
(VT8365)

Micro ATX

35-8996-XX-XX

awdf791

2K021204

35-8996-XX-00
35-8996-XX-01
& later

ProSavage KM133A (Socket A)

Models  Chipsets
part no. 
Platform PCB ID *3  Download Utility

Date code

Manual *2
KM133AASA-999/
KM133AASA-B999

VIA KM133A
(VT82C686A/B)
(VT8365A)

ATX

---

awdf791

2K021204

All Ver.

UniChrome KM266 Pro (Socket A)

Models  Chipsets
part no. 
Platform PCB ID *3  Download Utility

Date code

Manual *2
KM266PMSA-A36P

VIA KM266 Pro
(VT8235) or (VT8237)
(KM266Pro)

Micro ATX

---

awdf824c

2K041029

All Ver.

UniChrome KM400 (Socket A)

Models  Chipsets
part no. 
Platform PCB ID *3  Download Utility

Date code

Manual *2
KM400MSA-A36

VIA KM400
(VT8235) or (VT8237)
(KM400)

Micro ATX

---

awdf824c

2K031024

All Ver.

UniChrome KM400A (Socket A)

Models  Chipsets
part no. 
Platform PCB ID *3  Download Utility

Date code

Manual *2
KM400MSA-A36A

VIA KM400A
(VT8237)
(KM400A)

Micro ATX

---

awdf824c

2K041028

All Ver.

Apollo PLE133/ PLE133T (Socket 370)

Models  Chipsets
part no. 
Platform PCB ID *3  Download Utility

Date code

Manual *2
PM601AMS3-898B
PM601AMS3-B898B

VIA
Apollo PLE133
(VT82C686A/B)
(VT8601)

Micro ATX

35-C898-XX-XX

awdf791

2K010520A
- W83194R-39A
(stepping CD)

2K010727
- W83194R-39A
(stepping CE)

2K010515A
- ICW-144

2K020628
- ICS94211

VT8601

PM601AMS3-T898C
for
Tualatin
VIA
Apollo PLE133
(VT82C686A/B)
(VT8601T)
VT8601T
PMMS3-899B VIA
Apollo PLE133
(VT82C686A/B)
(VT8601)
Micro ATX --- awdf791
2K010520A
- W83194R-39A
(stepping CD)

2K010727
- W83194R-39A
(stepping CE)

2K010515A
- ICW-144

2K020628
- ICS94211

VT8601
PM601AMS3-T899C
for
Tualatin
VIA
Apollo PLE133
(VT82C686A/B)
(VT8601T)
VT8601T

Apollo Pro 266 (Socket 370)

Models  Chipsets
part no. 
Platform Download Utility

Date code

Manual *2
AP266AS3-200C

VIA Apollo Pro 266
(VT8233) (VT8633)

ATX

awdf791

2K011214

All Ver.

AP266MS3-209C

VIA Apollo Pro 266
(VT8233) (VT8633)

Micro ATX

awdf791

2K011214

All Ver.

Apollo KLE133 (Socket A)

Models  Chipsets
part no. 
Platform Download Utility

Date code

Manual *2
KLE133MSA-211

VIA Apollo KLE133
(VT82C686B) (VT8361)

Micro ATX

awdf791

2K021214

All Ver.

Apollo KT266 (Socket A)

Models 

Chipsets
part no. 

Platform

PCB ID *3 

Download

Utility

Date code

Manual *2

K266MSA-210

VIA Apollo KT266
(VT8233) (VT8366)

Micro ATX

---

awdf791

2K030222

All Ver.

K266ASA-991A
K266ASA-991B

VIA Apollo KT266
(VT8233) (VT8366)

ATX

X00Y1998

awdf791

2K021223

All Ver.
For PCB XXXY1998

X10Y1998
XX0Y742A

2K021212

The PCB digit 'X' indicates 'don't care'.

Apollo KT266A (Socket A)

Models 

Chipsets
part no. 

Platform

PCB ID *3 

Download

Utility

Date code

Manual *2

K266MSA-210/A

VIA Apollo KT266A
(VT8233) (KT266A)

Micro ATX

---

awdf791

2K030222

All Ver.

K266ASA-991C
K266ASA-991D

VIA Apollo KT266A
(VT8233) (KT266A)

ATX

X00Y1998

awdf791

2K021223

All Ver.
For PCB XXXY1998

X10Y1998
XX0Y742A

2K021212

The PCB digit 'X' indicates 'don't care'.

Apollo Pro 266T (Socket 370) for Tualatin

Models  Chipsets
part no. 
Platform Download Utility

Date code

Manual *2
AP266TAS3-T227C

VIA Apollo Pro 266
(VT8233) (VT8633T)

ATX

awdf791

2K020415

All Ver.

AP266TMS3-T228C

VIA Apollo Pro 266
(VT8233) (VT8633T)

Micro ATX

awdf791

2K020415

All Ver.

Apollo KT333 (Socket A)

Models  Chipsets
part no. 
Platform

PCB ID *3 

Download Utility

Date code

Manual *2
K333ASA-270

VIA Apollo KT333
(VT8367) (VT8233A)
(VT8367) (VT8233)

ATX

100Y742A
200Y742A

awdf791

2K021204

All Ver.

300Y742A

2K021106

Apollo KT400 (Socket A)

Models  Chipsets
part no. 
Platform

PCB ID *3 

Download Utility

Date code

Manual *2
K400ASA-279

VIA Apollo KT400
(VT8235) (KT400)

ATX

---

awdf824c

2K030321

All Ver.

Apollo KT400A (Socket A)

Models  Chipsets
part no. 
Platform

PCB ID *3 

Download Utility

Date code

Manual *2
K400AASA-279A

VIA Apollo KT400A
(VT8235) (KT400A)

ATX

---

awdf824c

2K041101

All Ver.

Apollo KT600 (Socket A)

Models  Chipsets
part no. 
Platform

PCB ID *3 

Download

Utility

Date code

Manual *2

DOS

WIN

K600ASA-A28

VIA Apollo KT600
(VT8235CE) or (VT8237)
(KT600)

ATX

---

awdf824c

WinFlash requires that the BIOS contained on the motherboard to be "WinFlash-Ready", in order to run in the Windows mode for BIOS upgrade. If the BIOS on the motherboard is not yet "WinFlash-Ready", then please use the DOS mode utility  AWDFLASH.EXE.

2K050112

All Ver.

K600ASA-A51

VIA Apollo KT600
(VT8235CE) or (VT8237)
(KT600)

ATX

---

awdf824c

 

2K041029

All Ver.

Apollo P4X266/ P4X266A

Models  Chipsets
part no. 
Platform Download Utility

Date code

Manual *2
[DDR]
P4X266AAS4-241XAA
P4X266AAS4-241XA/
P4X266AS4-241X

VIA Apollo P4X266A
(P4X266A/ VT8233A)
(P4X266A/ VT8233)
(P4X266/ VT8233)

ATX

awdf791

2K030305

All Ver.

[DDR]
P4X266MS4-254X
P4X266MS4-254XA

VIA Apollo P4X266A
(P4X266A/ VT8233A)
(P4X266A/ VT8233)

Micro ATX

awdf791

2K021119

All Ver.

[SDRAM]
P4X266AAS4-258XAA/
P4X266AAS4-258XA/
P4X266AS4-258X

VIA Apollo P4X266A
(P4X266A/ VT8233A)
(P4X266A/ VT8233)
(P4X266/ VT8233)

ATX

awdf791

2K021120A

All Ver.

[SDRAM]
P4X266AAMS4-259XAA/
P4X266AAMS4-259XA/
P4X266AMS4-259X

VIA Apollo P4X266A
(P4X266A/ VT8233A)
(P4X266A/ VT8233)
(P4X266/ VT8233)

Micro ATX

awdf791

2K021210A

All Ver.

Apollo P4M266

Models  Chipsets
part no. 
Platform Download Utility

Date code

Manual *2
[DDR]
P4M266MS4-A07M

VIA Apollo P4M266
(P4M266) / (VT8235)

ATX

awdf824c

2K030412

All Ver.

[DDR]
P4M266AS4-241M

VIA Apollo P4M266
(P4M266) / (VT8233)

ATX

awdf791

2K020523A

All Ver.

[DDR]
P4M266MS4-254M

VIA Apollo P4M266
(P4M266) / (VT8233A)
(P4M266) /
(VT8233)

Micro ATX

awdf791

2K021014

All Ver.

[SDRAM]
P4M266AS4-165M

VIA Apollo P4M266
(P4M266) / (VT8233)

ATX

awdf791

2K020510A

All Ver.

[SDRAM]
P4M266AS4-258M

VIA Apollo P4M266
(P4M266) / (VT8233A)
(P4M266) /
(VT8233)

ATX

awdf791

2K021014A

All Ver.

[SDRAM]
P4M266MS4-259M

VIA Apollo P4M266
(P4M266) / (VT8233A)
(P4M266) /
(VT8233)

Micro ATX

awdf791

2K030410

All Ver.

[DDR]
P4M266AS4-283M

VIA Apollo P4M266
(P4M266) / (VT8233A)
(P4M266) /
(VT8233)

ATX

awdf791

---

All Ver.

[SDRAM]
P4M266AS4-284M

VIA Apollo P4M266
(P4M266) / (VT8233A)
(P4M266) /
(VT8233)

ATX

awdf791

2K021224A

All Ver.

[DDR]
P4M266AS4-297M

VIA Apollo P4M266
(P4M266) / (VT8233A)
(P4M266) /
(VT8233)

ATX

awdf791

---

All Ver.

[DDR]
P4M266MS4-298M

VIA Apollo P4M266
(P4M266) / (VT8233A)
(P4M266) /
(VT8233)

Micro ATX

awdf791

2K030412

All Ver.

P4M266A

Models  Chipsets
part no. 
Platform Download Utility

Date code

Manual *2
[DDR]
P4M266AAS4-A06A

VIA Apollo P4M266A
(P4M266A) / (VT8235)

ATX

awdf824c

2K030212

All Ver.

[DDR]
P4M266AMS4-A07A

VIA Apollo P4M266A
(P4M266A) / (VT8235)

Micro ATX

awdf824c

2K030410

All Ver.

[DDR]
P4M266AMS4-A22A

VIA Apollo P4M266A
(P4M266A) / (VT8235)

Micro ATX

awdf824c

2K030410

All Ver.

[DDR]
P4M266AMS4-A31A

VIA Apollo P4M266A
(P4M266A) / (VT8235)

Micro ATX

awdf824c

2K050105
2K030703
2K030730

All Ver.

[SDR]
P4M266AMS4-259A

VIA Apollo P4M266A
(P4M266A) / (VT8233A)

Micro ATX

awdf791

2K030410

All Ver.

[DDR]
P4M266AMS4-298A

VIA Apollo P4M266A
(P4M266A) / (VT8233A)

Micro ATX

awdf791

2K030410

All Ver.

Apollo P4X266E

Models  Chipsets
part no. 
Platform Download Utility

Date code

Manual *2
[DDR]
P4X266EAS4-A06E

VIA Apollo P4X266E
(P4X266E) / (VT8235)

ATX

awdf824c

2K030220A

All Ver.

[DDR]
P4X266EMS4-A07E

VIA Apollo P4X266E
(P4X266E) / (VT8235)

Micro ATX

awdf824c

2K030110

All Ver.

[DDR]
P4X266EMS4-A31E

VIA Apollo P4X266E
(P4X266E) / (VT8235)

Micro ATX

awdf824c

2K030922

All Ver.

[DDR]
P4X266EAS4-241E

VIA Apollo P4X266E
(P4X266E) / (VT8233A)

ATX

awdf791

2K020710A

All Ver.

[DDR]
P4X266EMS4-254E

VIA Apollo P4X266E
(P4X266E) / (VT8233A)

Micro ATX

awdf791

2K021119

All Ver.

[SDRAM]
P4X266EAS4-258E

VIA Apollo P4X266E
(P4X266E) / (VT8233A)

ATX

awdf791

2K021120A

All Ver.

[SDRAM]
P4X266EMS4-259E

VIA Apollo P4X266E
(P4X266E) / (VT8233A)

Micro ATX

awdf791

2K021210

All Ver.

[DDR]
P4X266EAS4-283E

VIA Apollo P4X266E
(P4X266E) / (VT8233A)

ATX

awdf791

2K020726

All Ver.

[SDRAM]
P4X266EAS4-284E

VIA Apollo P4X266E
(P4X266E) / (VT8233A)

ATX

awdf791

2K021216A

All Ver.

[DDR]
P4X266EAS4-297E

VIA Apollo P4X266E
(P4X266E) / (VT8233A)

ATX

awdf791

2K021213A

All Ver.

[DDR]
P4X266EMS4-298E

VIA Apollo P4X266E
(P4X266E) / (VT8233A)

Micro ATX

awdf791

2K021127A

All Ver.

Apollo P4X400

Models  Chipsets
part no. 
Platform Download Utility

Date code

Manual *2
[DDR]
P4X400AS4-A05X

VIA Apollo P4X400
(P4X400) / (VT8235)

ATX

awdf824c

2K030830

All Ver.

[DDR]
P4X400MS4-A02X

VIA Apollo P4X400
(P4X400) / (VT8235)

Micro ATX

awdf824c

2K030607

All Ver.

[DDR]
P4X400AS4-271X

VIA Apollo P4X400
(P4X400) / (VT8235)

ATX

awdf824c

2K030510

All Ver.

P4X533

Models  Chipsets
part no. 
Platform Download

Utility

Date code

Manual *2

DOS

WIN

[DDR]
P4X533AS4-A24

VIA P4X533
(P4x533) / (VT8237)

ATX

awdf824c

WinFlash requires that the BIOS contained on the motherboard to be "WinFlash-Ready", in order to run in the Windows mode for BIOS upgrade. If the BIOS on the motherboard is not yet "WinFlash-Ready", then please use the DOS mode utility  AWDFLASH.EXE.

2K050223

All Ver.

[DDR]
P4X533AS4-A40

VIA P4X533
(P4x533) / (VT8237)

ATX

awdf824c

WinFlash requires that the BIOS contained on the motherboard to be "WinFlash-Ready", in order to run in the Windows mode for BIOS upgrade. If the BIOS on the motherboard is not yet "WinFlash-Ready", then please use the DOS mode utility  AWDFLASH.EXE.

2K050224

All Ver.

[DDR]
P4X533AS4-A52

VIA P4X533
(P4x533) / (VT8237)

ATX

awdf824c

 

2K041104

All Ver.

PT800

Models  Chipsets
part no. 
Platform Download

Utility

Date code

Manual *2

DOS

WIN

[DDR]
PT800AS4-A24

VIA PT800
(PT800) / (VT8235) or (VT8237)

ATX

awdf824c

WinFlash requires that the BIOS contained on the motherboard to be "WinFlash-Ready", in order to run in the Windows mode for BIOS upgrade. If the BIOS on the motherboard is not yet "WinFlash-Ready", then please use the DOS mode utility  AWDFLASH.EXE.

2K050223

All Ver.

[DDR]
PT800AS4-A52

VIA PT800
(PT800) / (VT8235) or (VT8237)

ATX

awdf824c

 

2K041104

All Ver.

PT880

Models  Chipsets
part no. 
Platform Download Utility

Date code

Manual *2
[DDR]
PT880AS4-A35

VIA PT880
(PT880) / (VT8237)

ATX

awdf824c

2K040214
2K041130

All Ver.

PM800

Models  Chipsets
part no. 
Platform Download

Utility

Date code

Manual *2

DOS

WIN

[DDR]
PM800MS4-A41

VIA PM800
(PM800) / (VT8237)

Micro ATX

awdf831

WinFlash requires that the BIOS contained on the motherboard to be "WinFlash-Ready", in order to run in the Windows mode for BIOS upgrade. If the BIOS on the motherboard is not yet "WinFlash-Ready", then please use the DOS mode utility  AWDFLASH.EXE.

2K040608

All Ver.

[DDR]
PM800MS4-A50

VIA PM800
(PM800) / (VT8237)

Micro ATX

awdf831

 

2K040929
2K041008
2K041110

All Ver.

P4M800

Models  Chipsets
part no. 
Platform Download Utility

Date code

Manual *2
[DDR]
P4M800MS7-A61M

VIA P4M800
(P4M800) / (VT8237 /R)

Mirco ATX

awdf831

2K050706
2K051104

All Ver.

P4M800 PRO

Models  Chipsets
part no. 
Platform Download Utility

Date code

Manual *2
[DDR]
P4M800PROMS7-A83MP

VIA P4M800
(P4M800PRO) / (VT8237 /R+)

Mirco ATX

awdf863b

2K051208

All Ver.

K8T800

Models  Chipsets
part no. 
Platform Download Utility

Date code

Manual *2
[DDR]
K8T800ASA-A14

VIA K8T800
(K8T800) / (VT8237)

ATX

awdf831

2K050901

All Ver.

K8T800B

Models  Chipsets
part no. 
Platform Download Utility

Date code

Manual *2
[DDR]
K8T800BASA-A14B

VIA K8T800B
(K8T800B) / (VT8237)

ATX

awdf831

2K050926

 

K8T800 PRO

Models  Chipsets
part no. 
Platform Download Utility

Date code

Manual *2
[DDR]
K8T800PROASA-A53

VIA K8T800 PRO
(K8T800 PRO) / (VT8237)

ATX

awdf831

2K050114

All Ver.

CLE266

Models  Chipsets
part no. 
Platform Download Utility

Date code

Manual *2
[DDR]
CLE266M-A68M800

VIA CLE266
(CLE266) /(VT8235)

Micro ATX

awdf831

2K050906

All Ver.

Note

   
  *2


This generic manual provided for reference only, PC Partner doesn't guarantee which is match your board. All manuals are subject to change without notice. For the actual user manual, please obtain from your motherboard supplier.
  *3 The digit 'X' indicates 'don't care'.
     
  WinFlash requires that the BIOS contained on the motherboard to be "WinFlash-Ready", in order to run in the Windows mode for BIOS upgrade. If the BIOS on the motherboard is not yet "WinFlash-Ready", then please use the DOS mode utility AWDFLASH.EXE.
     
    PC Partner is a trademark of PC Partner Limited.  
Other products and company names mentioned herein may be the trademark or registered trademark of their respective owners.