Adaptec AHA-1542B
Logs
typeType
Floppy controller SCSI controller
interfaceInterface
signalSignaling
16-bit ISA
dimSlot height
1
datePCI ID
Empty
fccFCC ID
FGT154XB
chip Chips and specs
-> Floppy ctrl.
National Semiconductor DP8473 (Floppy Controller)
-> Processor
Intel 8085
-> SCSI ctrl.
Adaptec AIC-6250 Adaptec AIC-565 Adaptec AIC-580
MTL
Size: Full-length, full-height card
Data bus: 16-bit, ISA
Hard drives supported: Up to seven SCSI devices
Floppy drives supported: Two 360KB, 720KB, 1.2MB or 1.44MB
tag Also known as
portintI/O ports
1x 
  • 2x17 2.54mm pin header
1x 
  • 2x25 2.54mm pin header
1x 
  • 50-pin Centronics Connector
powerPower connectors
Empty
wrench Known issues
  • AHA-154xB Driver

The AHA-154xB does not work with Adaptec’s last DOS drivers (ASPI4DOS.SYS version 3.36), as well as the driver shipped with OEM versions of Windows 98SE (ASPI4DOS.SYS version 3.36S). For an AHA-154xB one might as well use ASPI4DOS.SYS version 3.35 or earlier and forget that version 3.36 ever existed.

Last updated 2025-06-06T09:23:22Z
bios 4 card BIOS files available
Version
Note
File
Logs
Version
3.20 modified
Note
AHA-1542B BIOS modified to use the controller at IO address 234h
File
Logs
Version
3.20
Note
AHA-1542B BIOS and Microcode
File
Logs
Version
3.10
Note
AHA-1542B BIOS and Microcode
File
Logs
Version
3.08
Note
AHA-1542B BIOS and Microcode
File
Logs
drv 1 driver available
Name
Version
OS support
Arch
Size
Filename
Name
Version
3.11
OS support
MS-DOS Windows 3.1x
Arch
x86
Size
3.5MB
Filename
doc 2 card documents available
Release date
File
Logs
Release date
File
Logs
Release date
1990-04
File
Logs
Chip
Release date
File
Logs
Chip
Release date
1990-07
File
Logs
Chip
Release date
File
Logs
Chip
Release date
1997-06-13
File
Logs
image1 Image 1 of 4 (Douglar)
image2 Image 2 of 4 (pshipkov)
image3 Image 3 of 4 (pshipkov)
image4 Image 4 of 4 (Douglar)

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