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 KT7A
AMD Socket A Based ATXMainboard With Ultra DMA100 & SoftMenu™ Technology
  BIOS
You may want to know:
How to update the bios? Please click here.
Besides downloading the bios file, you also need the Flash Utility to flash bios rom. (For files before Aug 2001)

  • CPU support list
  • For more FAQs about BIOS relationship, click here please.
  • You won't need to update BIOS until the latest bios has improve / fix some functions.
  • You won't need to upgrade through all of the BIOS files, just upgrade to the latest one please and it will include all previous improvments.
  • The CMOS data will be lost after flashing the BIOS. You may need to enter the BIOS setup screen and configure your system information after rebooting the machine.

BIOS: kt7a9.exe  
Bios Issue Date:2002/07/11
Mirror Site: ASIA Europe US 
BIOS ID: A9
  1. Fix nVidia GeForce4 Ti 4x00 AGP card compatible issue with Windows XP.
  2. HPT 37x BIOS version 1.11.0402.The RAID function is for KT7A-RAID only. This BIOS version is also for non-RAID boards and HPT BIOS will be automatically disabled while RAID controller chip not detected.
  3. BIOS Compile Date: 7/11/2002.
BIOS: kt77n.exe  
Bios Issue Date:2002/01/31
Mirror Site: ASIA Europe US 

BIOS ID: 7N

  1. Support up to 137GB HDD and above.
  2. HPT 370 RAID BIOS version 1.11.0402. The RAID function is for KT7-RAID / KT7A-RAID only. This BIOS version is also for non RAID boards and HPT BIOS will be automatically disabled while RAID controller chip not detected.
BIOS: kt764.exe  
Bios Issue Date:2001/11/07
Mirror Site: ASIA Europe US 

BIOS ID: 64

  1. Fine tune the register value of CPU driving strength to enhance the system stability.
  2. HPT 370 RAID BIOS version 1.11.0402. The RAID function is for KT7-RAID / KT7A-RAID only. This BIOS version is also for non RAID boards and HPT BIOS will be automatically disabled while RAID controller chip not detected.
BIOS: kt74a.exe  
Bios Issue Date:2001/08/24
Mirror Site: ASIA Europe US 

BIOS ID: 4A

  1. Support AMD 1.4GHz(133)CPU. (The bios is for both KT7 and KT7A series, but this enhancement is for KT7A/KT7A-RAID series only)
  2. HPT 370 RAID BIOS version 1.11.0402.
BIOS: kt73r.exe  
Bios Issue Date:2001/07/05
Mirror Site: ASIA Europe US 

BIOS ID: 3R

  1. Update BIOS code.
  2. Enhance ISA PnP compatibility.
  3. Enhance SCSI adapters compatibility.
  4. Add 1400(133) Athlon support for KT7A/KT7A-RAID.
  5. Add new option "1200 above" for high speed Athlons with 100FSB. KT7 / KT7-RAID / KT7A / KT7A-RAID / KT7E only support 1.4G(100) Athlon with L1 bridges disconnected. Check L1 before you buy a CPU please!
  6. For Creative SBLive 5.1 sound card users, you may try these two options while experience sound quality issue.
    PCI master read caching, default setting=Disabled
    PCI master time-out, Default setting=1
    Setting above options to Disabled/3 will lead to the same result with VIA Latency patch V0.14 and may help SB Live 5.1 sound issue. If the system experiences low performance after these settings, enable the "PCI master read caching" please.
    Enhance the high speed 133FSB Athlon stability for KT7A/KT7A-RAID.
  7. HPT 370 RAID BIOS version 1.11.0402 for KT7-RAID/KT7A-RAID. This BIOS version is also for non RAID boards and HPT BIOS will be automatically disabled while RAID controller chip not detected.
BIOS: kt73c.exe  
Bios Issue Date:2001/05/12
Mirror Site: ASIA Europe US 

BIOS ID: 3C

  1. HPT 370 RAID BIOS version 1.11.0402.
  2. Since bios 3C includes HPT bios 1.11, you may need upgrade your HPT370 driver before flashing the bios.
    When you upgrade bios from ZT to 3C, we highly recommend you backup your system to an independent storage device first. New HPT 1.11 bios could not keep configuration from old one. That means you may need to rebuild RAID system. Therefore, you may lost RAID-0 data after update bios from old version to new one.
    For RAID-1 user, please press "CTRL+H" to enter hpt370 setup screen and do "Duplicate Mirror Disk " to recover RAID system.
BIOS: kt7zt.exe  
Bios Issue Date:2001/05/11
Mirror Site: ASIA Europe US 
BIOS ID: ZT
  1. Adds three new options to enhance the system compatibility:
    Delay transaction .
    PCI master read caching .
    PCI master time-out
    Set above options to Disabled / Disabled / 0 may help SB Live 5.1 sound issue.
    If the system experiences low performance after these settings, enable the PCI master read caching please.
  2. Fixes the issue Athlon 1.3G(100) wrongfully recognized as 104x12.5.
  3. Adds an option State after power failure.
  4. Set all four IDE devices to AUTO.
  5. Set the default year to 2001.
BIOS: kt7yh.exe  
Bios Issue Date:2001/02/14
Mirror Site: ASIA Europe US 

BIOS ID: YH

  1. Augment to FlashMenu Function.
  2. Adds RAID BIOS version v1.03b.
BIOS: kt7wz.exe  
Bios Issue Date:2001/01/29
Mirror Site: ASIA Europe US 

BIOS ID: WZ

  1. Adds an option to enable/disable CPU protection (fan1 error checking) function and changes the default setting to be disabled.
  2. Fixes wrongful register setting of Bank x/y Dram Timing for some special configurations.
  3. Changes CPU FSB from 133MHz to 133.33MHz for specific Athlon processors.
  4. Fixes system-hang issue when running Sisoft Sandra 2000 Professtional.
  5. Supports FlashMenu utility.
  6. HPT 370 RAID BIOS verson 1.0.3b1.
BIOS: kt7ww.exe  
Bios Issue Date:2000/12/15
Mirror Site: ASIA Europe US 

BIOS ID: WW

  1. Adds CPU protecting function. !WARNING! If the CPU fan reading of fan header #1 lower than 2000 rpm, or the fan is connected on header #2/#3/#4 or directly to power supply unit, this BIOS will automatically SHUTDOWN THE POWER IN 10 SECONDS. This design protect the processor from damage by heat.
  2. Fixes the fail to boot issue after Load Default then save setting and exit BIOS.
  3. Fixes the Fast Write function failed when the Enhance Chip Performance function enabled.
  4. Fixes the delay issue for certain DVD-ROM during booting up.
  5. Fixes the misreading issue for certain VCM 256M memory module.
  6. RAID BIOS version v1.0.3b1 (RAID function is for KT7-RAID and KT7A-RAID only).
BIOS: kt7wt.exe  
Bios Issue Date:2000/12/12
Mirror Site: ASIA Europe US 

BIOS ID: WT

  1. Adds support for AMICA 29002 2M Flash ROM.
  2. RAID BIOS version v1.0.0622(RAID function is for KT7-RAID only).
BIOS: kt7ul.exe  
Bios Issue Date:2000/09/05
Mirror Site: ASIA Europe US 

BIOS ID: UL

  1. Supports core voltage to 1.85v.
  2. Adds 3 options in BIOS : Enhance Chip Performance, Force4-way Interleave , Enable Dram 4K-Page Mode.
  3. Fixes Duron CPU(1.6v) issue.
BIOS: kt7tl.exe  
Bios Issue Date:2000/08/04
Mirror Site: ASIA Europe US 

BIOS ID: TL

  1. First release.


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