IBM CORPORATION

PS/2 MODEL 76 (TYPE 9576)

Processor            80486SX/80486DX2
Processor Speed      25/33/66(internal)MHz
Chip Set             IBM
Max. Onboard DRAM    32MB
Cache                None
BIOS                 Unidentified
Dimensions           330mm x 218mm
I/O Options          MCA slot, floppy drive interface, SCSI connector,
                     parallel port, PS/2 mouse port, serial ports (2)
NPU Options          None

[Image]

                                CONNECTIONS

  Purpose                  Location   Purpose                    Location

  PS/2 mouse port            J1       SCSI interface               J7

  Parallel port              J3       Control panel connector      J19

  Serial port 1              J4       Floppy drive interface       J21

  Serial port 2              J5       MCA slot                     SL1

  SCSI port                  J6

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

  »   CMOS memory normal operation           JMP1              Open

      CMOS memory clear                      JMP1             Closed

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     4MB        (1) 256K x     (1) 256K x     (1) 256K x    (1) 256K x 36
                    36             36             36

     4MB       (1) 1M x 36        NONE           NONE           NONE

     5MB       (1) 1M x 36     (1) 256K x        NONE           NONE
                                   36

     6MB       (1) 1M x 36     (1) 256K x     (1) 256K x        NONE
                                   36             36

     7MB       (1) 1M x 36     (1) 256K x     (1) 256K x    (1) 256K x 36
                                   36             36

     8MB       (1) 1M x 36    (1) 1M x 36        NONE           NONE

     12MB      (1) 1M x 36    (1) 1M x 36    (1) 1M x 36        NONE

     16MB      (1) 1M x 36    (1) 1M x 36    (1) 1M x 36     (1) 1M x 36

     16MB      (1) 4M x 36        NONE           NONE           NONE

     17MB      (1) 4M x 36     (1) 256K x        NONE           NONE
                                   36

     18MB      (1) 4M x 36     (1) 256K x     (1) 256K x        NONE
                                   36             36

     19MB      (1) 4M x 36     (1) 256K x     (1) 256K x    (1) 256K x 36
                                   36             36

     20MB      (1) 4M x 36    (1) 1M x 36        NONE           NONE

     21MB      (1) 4M x 36    (1) 1M x 36     (1) 256K x        NONE
                                                  36

     22MB      (1) 4M x 36    (1) 1M x 36     (1) 256K x    (1) 256K x 36
                                                  36

     24MB      (1) 4M x 36    (1) 1M x 36    (1) 1M x 36        NONE

     25MB      (1) 4M x 36    (1) 1M x 36    (1) 1M x 36    (1) 256K x 36

     28MB      (1) 4M x 36    (1) 1M x 36    (1) 1M x 36     (1) 1M x 36

     32MB      (1) 4M x 36    (1) 4M x 36        NONE           NONE

             CPU SPEED CONFIGURATION

         Speed                     SPD

         25MHz              pins 1 & 2 closed

         33MHz              pins 2 & 3 closed

  Note: Jumper SPD is only on SX based boards.