CALIBER COMPUTER

80486-33A

Processor         80486DX
Processor Speed   33MHz
Chip Set          OPTI
Max. Onboard DRAM 32MB
Cache             64/256KB
BIOS              AMI
Dimensions        330.2mm x 218.4mm
I/O Options       32-bit external memory card slot
NPU Options       4167

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                  Location

  External battery           J10       32-bit external             S1
                                       memory card

  Power LED & keylock        J23       Reset switch               SW1

  Speaker                    J24       Turbo switch               SW2

  Turbo LED                 JP12

                         USER CONFIGURABLE SETTINGS

 »   Monitor type select color                  JP1            Closed

     Monitor type select monochrome             JP1             Open

 »   CMOS memory normal operation               JP2          pins 2 & 3
                                                               closed

     CMOS memory clear                          JP2          pins 1 & 2
                                                               closed

 »   Bus speed select iOSC/4                    JP3             Open

     Bus speed select iOSC/6                    JP3            Closed

           DRAM CONFIGURATION

     Size        Bank 0        Bank 1

     4MB        (4) 1M x 9      NONE

     8MB        (4) 1M x 9   (4) 1M x 9

     16MB       (4) 4M x 9      NONE

     20MB       (4) 1M x 9   (4) 4M x 9

     32MB       (4) 4M x 9   (4) 4M x 9

                 CACHE CONFIGURATION

  Size       Bank 0        TAG (U33)      TAG (U34)

  64KB     (8) 8K x 8     (1) 32K x 1    (1) 8K x 8

  256KB    (8) 32K x 8    (1) 32K x 1    (1) 32K x 8

              CACHE JUMPER CONFIGURATION

  Size       JP8        JP9        JP10       JP11

  64KB      Open        Open       Open       Open

  256KB    Closed      Closed      Open      Closed

                          CPU TYPE CONFIGURATION

    Type            JP5                  JP6                  JP7

  80486SX           Open           pins 2 & 3 closed         Open

  80487SX     pins 1 & 2 closed    pins 1 & 2 closed        Closed

  80486DX     pins 2 & 3 closed    pins 1 & 2 closed        Closed