
IBM CORPORATION

PS/2 MODEL 80 (8580-A21, A31)

Processor               80386DX
Processor Speed         16/20/25MHz
Chip Set                None
Max. Onboard DRAM       8MB
Cache                   None
BIOS                    IBM
Dimensions              355mm x 254mm
I/O Options             Serial port, parallel port, pointing device
                        connector, display connector, video adapter slot,
                        floppy drive connector
NPU Options             80387

[Image]

                                CONNECTIONS

  Purpose                    Location   Purpose                  Location

  Power supply                  J1      Serial port                J6

  Floppy drive                  J2      Parallel port              J7

  Battery/speaker               J3      Pointing device            J8

  Video adapter slot            J4      Keyboard                   J9

  VGA port                      J5

                            DRAM CONFIGURATION

          Size                   Bank 0                   Bank 1

          1MB                (1) 256K x 36                 NONE

          2MB                (1) 256K x 36             (1) 256K x 36

          4MB                 (1) 1M x 36                  NONE

          8MB                 (1) 1M x 36               (1) 1M x 36

  Note:SIMMs are a proprietary IBM design, standard 36-bit SIMMs can not
  be used.

