BIOS/ROM Images

Award BIOS for Atari PC1, PC2 and PC3

VersionV3.05Date09/17/1987Size256K
DescriptionAs far as I know it was only found on the Atari PC1.
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VersionV3.06Date10/01/1987Size256K
DescriptionChanges: Parity Check Enabled (source).

As far as I know it was only found on the Atari PC1.

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VersionV3.07Date10/19/1987Size256K
DescriptionChanges: NSI Video BIOS Updated (source).

As far as I know was only found on the Atari PC1.

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VersionV3.08Date12/15/1987Size256K
DescriptionChanges: RTC Support Added (source).

Latest and final revision of the Award BIOS for the Atari PC. Shipped with the Atari PC2 and PC3 and also some later built Atari PC1’s.

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AMI BIOS for the Atari PC4/PC4LC (EVEN and ODD) and ABC 286

VersionV1.xDate09/25/1988Size256K
DescriptionOn the PC4 the BIOS chip labeled “PC4X-BIOS”. Earliest known version for the Atari PC4.
Also found on the PC4LC Motherboard in a very early revision ABC 286/30 with the BIOS chip labeled “PC4 Germany / PC NTSC”.
DownloadEVENODD

VersionV1.7Date02/22/1990Size256K
DescriptionBIOS chip labeled “286/60”. This version has a known issue with HIMEM.SYS. See Atari Technical Bulletin ABC286-0001.
DownloadEVEN | ODD

 EGA BIOS

Version 1.0.6Date??/??/1988Size256K
DescriptionChips and Technologies P82C441 EGA BIOS as found on the Atari PC4LC Motherboard (aka ABC 286/30) and other ABC 286 series boards.
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 VGA BIOS

Version UnknownDate06/15/1988Size256K
DescriptionParadise PVGA1A-JK Onboard VGA BIOS. Found on all PC4 motherboard revisions.
DownloadEVEN | ODD

AMI BIOS for the Atari PC5

VersionV1.00DateUnknownSize256K
DescriptionAMI BIOS for the AMI 386XT Series-4 motherboard which includes in-built diagnostics. Has Atari copyright branding during POST but as far as I can tell it is a standard AMI BIOS.
DownloadROM0 | ROM1 | ROM2 | ROM3