Gigabyte GA-586ATV (Rev. 1.x)
chipChipset
cpuCPU socket
speedFSB speeds
50MHz55MHz60MHz66MHz
moboForm factor
Baby AT (max 220 x 330 mm)
dimDimensions
330mm x 218mm
chipCache
256KB512KB
ramMax RAM size
128MB
ramRAM types
72-pin FPM72-pin EDO
pwrPSU connector
connI/O ports
1x 
AT Keyboard
1x 
Floppy interface
2x 
IDE interface
1x 
PS/2 mouse
1x 
Parallel
2x 
Serial
2x 
USB 1.x
cardExpansion slots
3x 
16-bit ISA
4x 
32-bit PCI
1x 
8-bit ISA
1x 
COAST Slot

Known issues:

  • DALLAS RTC coin cell empty

The motherboard's Real-Time Clock (RTC) chip contains a coin cell that may have drained, causing the loss of CMOS settings. This can result in an inability to save settings, causing system instability or failure to boot. To fix this, the RTC chip can be replaced with an equivalent or repaired by cutting into it and soldering on a new external coin cell holder. Replacement guides are available at https://github.com/necroware/nwX287 or https://github.com/necroware/nw12887, depending on the actual chip used.

  • Underpowered VRM

The onboard VRM may not provide sufficient power for certain processors or configurations.

Notes:

Some additional known issues with Rev 1a boards:

  • Multiplier selection with Pentium MMX CPUs may not work correctly due to a design issue. For example, a 3X multiplier for 200MHz Pentium MMX CPUs can not be set and it will be stuck at 2.5X/166MHz. The board is missing a 2.2Kohm pull-up resistor on the BF0 CPU pin needed for this to work correctly with MMX CPUs. Classic Pentium CPUs will not have multiplier selection issues.
  • This board does not appear to be compatible with Dallas DS12887/DS12887A RTC modules and will consistently report CMOS checksum failures when one is used. The Benchmarq BQ3287 and Odin OEC12C887 both appear to work fine. Necroware's BQ3285 based custom RTC module is confirmed to work fine in this board.
Last updated 2023-11-18T12:48:50Z
Score is 9.6/10
9 files available

Vendor: Award [9 entries]

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11/06/97-i430VX-UMC8669-2A59GG0AC-00
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Latest BIOS
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4.51PG
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pwr 2020-10-21
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04/17/97-i430VX,UMC8669-2A59GG0AC-00
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4.51PG
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pwr 2020-10-21
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03/31/97-i430VX,UMC8669-2A59GG0AC-00
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4.51PG
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pwr 2020-10-21
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02/21/97-i430VX,UMC8669-2A59GG0AC-00
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4.51PG
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pwr 2020-10-21
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10/24/96-i430VX,UMC8669-2A59GG0AC-00
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4.51PG
BIOS version
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pwr 2020-10-21
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10/24/96-i430VX,UMC8669-2A59GG0AC-00
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4.51PG
BIOS version
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pwr 2020-10-21
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09/04/96-i430VX,UMC8669-2A59GG0AC-00
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4.51PG
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pwr 2020-10-21
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07/02/96-i430VX,UMC8669-2A59GG0AC-00
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4.51PG
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pwr 2020-10-21
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06/18/96-i430VX,UMC8669-2A59GG0AC-00
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4.51PG
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pwr 2023-01-25
drv 1 driver available
Name
Version
OS support
Size
Filename
Name
Version
3.00
OS support
1987os2 OS/2 Warp 3.0 1993win Windows NT 3.5 1995win Windows 95 1995win Windows NT 3.51 1995win Windows NT 4.0
Size
unknown
Filename
doc 1 board document available
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Release date
File
Last edit
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English
Release date
File
Last edit
pwr 1970-01-01
chipdoc 7 chip documents available
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pwr 2022-08-14
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pwr 2023-05-01
Chip
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pwr 2023-08-23
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pwr 2023-08-20

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