IBM PS/2 MODEL 90 (8590) (Early)
chipChipset
cpuCPU socket
Empty
speedFSB speeds
20MHz25MHz33MHz50MHz60MHz66MHz
moboForm factor
OEM / Proprietary
dimDimensions
Empty
chipCache
0B64KB128KB256KB
ramMax RAM size
256MB(ECC)64MB(parity)
ramRAM type
72-pin FPM
pwrPSU connector
OEM/Proprietary
connI/O ports
1x 
Floppy interface
1x 
PS/2 keyboard
1x 
PS/2 mouse
1x 
Parallel
2x 
Serial
cardExpansion slots
4x 
32-bit MCA
1x 
AVE (MCA)

Also known as:

  • IBM 64F3288
  • IBM 91F7467

Notes:

These systems use processor complexes, types 1-4. Only type 4 (Pentium & DX2-66) support 256MB ECC RAM. The type 3 supports 64MB ECC RAM. All support 64MB Parity RAM. Memory is interleaved and must be installed in matched pairs.

This board can be identified by having a keyboard filter at LN5 near the PS/2 port and having a notched front edge of the PCB.

Further details: https://www.ardent-tool.com/90/

Last updated 2022-04-17T18:23:52Z
Board info score is 5.1/10
0 files available
drv No drivers available
doc No documents available

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