ABIT KT7A (1.0, 1.1, 1.2; NOT 1.3!)
SPECIFICATIONS
uP Type Socket-A
200/266MHz FSB
Format ATX
Chipset VIA KT-133A (VT8363A) Northbridge (133MHz FSB), VIA 686B Southbridge (UDMA100)
ISA Slots 1 (1 PCI/ISA shared)
PCI Slots 6 (1 PCI/ISA shared)
AGP Slot (speed) 1 (4x)
AMR Slot 0
CNR Slot 0
USB 2 (+2 optional through onboard connector)
Memory Slots 3x DIMM 168-pin SDRAM, 100/133MHz, max. 3x 512MB
Other 2x Onboard IDE UDMA33/66/100
Onboard FD connector
2x Onboard Serial port
Onboard parallel port
Optional IR port
Clockgenerator: Phaselink PLL205-03XC
DRIVERS
See VIA chipset Drivers
BIOS
The RAID function is for KT7-RAID / KT7A-RAID boards only.
The RAID BIOS versions are also for non-RAID boards; the HPT RAID functionality will be automatically disabled when a RAID controller chip is not detected.
AWARD Flash 7.97D Flash program for ABIT KT7A
A9 final Changes:
  • Fix nVidia GeForce4 Ti 4x00 AGP card compatible issue with Windows XP
  • HPT 37x BIOS version 1.11.0402
A9 beta 0 Changes: unknown
7N Changes:
  • Support up to 137GB HDD and above
  • HPT 370 RAID BIOS version 1.11.0402
64 Changes:
  • Fine tune the register value of CPU driving strength to enhance the system stability
  • HPT 370 RAID BIOS version 1.11.0402
4A Changes:
  • Support AMD 1.4GHz (133) CPU
  • HPT 370 RAID BIOS version 1.11.0402
49 Beta 0 Changes:
  • Based on official BIOS KT7_3R.BIN
  • Enhance TekrAm SCSI adapter compatibility:
    Fix hang-up issue while "Verifying DMI Pool Data..." for TekrAm DC-390F (Symbios 53C875 chip).
    Fix hang-up issue while "Verifying DMI Pool Data..." for TekrAm DC-395UW (TRM-S1040D chip)
  • HPT 370 RAID BIOS version 1.11.0402 for KT7-RAID/KT7A-RAID
3R Changes:
  • Update BIOS code
  • Enhance ISA PnP compatibility
  • Enhance SCSI adapters compatibility
  • Add 1400(133) Athlon support for KT7A/KT7A-RAID
  • 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!
  • For Creative SBLive 5.1 sound card users, you may try these 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
  • 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
3R Beta 03 Changes:
  • HCLK+PCICLK problem fixed
  • ABIT recommend uninstalling the VIA 4in1 IDE driver before installing this BIOS, then reinstalling afterwards
    3R Beta 02 Changes:
    • Enhance the high speed 133FSB Athlon stability for KT7A/KT7A-RAID.
    • Side effect: CPU temperature becomes higher, about 50 degree C while gets into Windows 2000 and ME.
      Solution: Overwrite offset 52 bit 7 to "1". This can be done by special utilities WPCREDIT and WPCRSET
    3R Beta 01 Don't forget to check the readme.txt before flashing, it contains important information!
    Changes:
    • Update BIOS code
    • Enhance ISA PnP compatibility
    • Enhance SCSI adapters compatibility
    • Add 1400(133) Athlon support for KT7A/KT7A-RAID
    • 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!
    • For Creative SBLive 5.1 sound card users, you may try these 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
    • Update HPT BIOS to 1.20.0612 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
    3C Changes:
    • HPT 370 RAID BIOS version 1.11.0402
    ZT Changes:
    • Adds three new options to enhance the system compatibility:
      Delay Transaction (Advanced Chipset Features)
      PCI master Read Caching (Advanced Chipset Features)
      PCI master time-out (Advanced Chipset Features)
      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.
      Bunny: also fixes USB problems and the copy-problem for large data transfers on IDE1/IDE2
    • Fixes the issue Athlon 1.3G(100) wrongfully recognized as 104x12.5
    • Adds an option State after power failure
    • Set all four IDE devices to AUTO
    • Set the default year to 2001
    • BIOS compile date: 05/11/2001
    ZT Beta 01 Changes:
    • Change the default setting of primary/secondary master/slave IDE to "auto-detecting"
    • Adds the following three options which was recommended by certain hardware review webpage:
      Delay Transaction (Advanced Chipset Features)
      PCI master Read Caching (Advanced Chipset Features)
      PCI master time-out (Advanced Chipset Features)
      Some customers said setting the above three options to "Disabled/Disabled/0" individually may help DMA and sound issue
    YP Beta 01 Changes:
    • Fixes the booting issue with AHA 29160N/2940U2W/2940U SCSI cards with BIOS version 2.57.2
    • Fixes the booting issue with SCSI cards based on Symbios Logic chip like 53C875
    YH Changes:
    • Enhance Flash Menu supporting
    • HPT 370 RAID BIOS verson 1.0.3B
    WZ Changes:
    • Adds an option to enable/disable CPU protection (fan1 error checking) function and changes the default setting to be disabled
    • Fixes wrongful register setting of "Bank x/y Dram Timing" for some special configurations
    • Changes CPU FSB from 133MHz to 133.33MHz for specific Athlon processors
    • Fixes system-hang issue when running Sisoft Sandra 2000 Professtional
    • Supports FlashMenu utility
    • HPT 370 RAID BIOS verson 1.0.3b1
    WZ Beta 04 Changes:
    • Fixes wrongful register setting of "Bank x/y Dram Timing" for normal/medium/fast/turbo with CL=2 setting
    • Fixes wrongful register setting of "Bank x/y Dram Timing" for normal/medium/fast/turbo with 133FSB Athlon CPU. For KT7A and KT7A-RAID only
    • Adds an option to disable fan1 error check and changes the default setting to disable
    • Adds CPU FSB from 133MHz to 133.33MHz
    • Fixes system-hang when running Sisoft Sandra 2000 Professtional
    • Fixes the detection of HDD during NT4.0 installing with AHA 29160 SCSI
    • Fixes booting issue of HPT370 HDD with AHA 29160 SCSI
    • Fixes FlashMenu failure with warning message when flashing BIOS
    • Disable PostMan showing post-code in suspend mode
    WZ Beta 01 Changes:
    • Fixes wrongful register setting of "Bank x/y Dram Timing" for normal/medium/fast/turbo with CL=2 setting
    • Fixes wrongful register setting of "Bank x/y Dram Timing" for normal/medium/fast/turbo with 133FSB Athlon CPU. For KT7A and KT7A-RAID only
    • Adds an option to disable fan1 error check and changes the default setting to disable
    WW Changes:
    • 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
    • Fixes the fail to boot issue after Load Default then save setting and exit BIOS
    • Fixes the Fast Write function failed when the Enhance Chip Performance function enabled
    • Fixes the delay issue for certain DVD-ROM during booting up
    • Fixes the misreading issue for certain VCM 256M memory module
    • RAID BIOS version v1.0.3b1 (RAID function is for KT7-RAID and KT7A-RAID only)
    WT Changes:
    • Support AMICA 29002 2M Flash ROM
    • RAID BIOS version v1.0.0622
    UL Changes:
    • Supports core voltage to 1.85v
    • Adds 3 options in BIOS : Enhance Chip Performance, Force4-way Interleave , Enable Dram 4K-Page Mode
    • Fixes Duron CPU (1.6v) issue
    TL Changes:
    • First release
    LINKS
    ABIT Homepage
    ABit-USA Homepage
    ABIT KT7A bios page
    ABIT KT7A FTP page
    LEO KT7 FTP page