CALIBER COMPUTER

80486-50B

Processor         80486DX
Processor Speed   50MHz
Chip Set          OPTI
Max. Onboard DRAM 32MB
Cache             64/256KB
BIOS              AMI
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       4167

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  External battery            J11       Turbo LED                 JP11

  Power LED & keylock         J20       Reset switch               SW1

  Speaker                     J21       Turbo switch               SW2

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   CMOS memory normal operation             JP1           pins 1 & 2
                                                              closed

      CMOS memory clear                        JP1           pins 2 & 3
                                                              closed

  »   Monitor type select color                JP2            Closed

      Monitor type select monochrome           JP2             Open

  »   Factory configured - do not alter        JP6             Open

  »   Factory configured - do not alter        JP7           pins 1 & 2
                                                              closed

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

      1MB         (4) 256K x 9       NONE

      2MB         (4) 256K x 9   (4) 256K x 9

      4MB         (4) 1M x 9         NONE

      5MB         (4) 256K x 9    (4) 1M x 9

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

      16MB        (4) 4M x 9         NONE

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

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

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

            CACHE CONFIGURATION

     Size          Bank 0          TAG

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

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

       CACHE JUMPER CONFIGURATION

   Size      JP9      JP10      JP12

   64KB      Open     Open      Open

  256KB     Closed   Closed    Closed

                          CPU TYPE CONFIGURATION

       Type               JP3               JP4                JP5

      80486SX             Open              Open            pins 2 & 3
                                                             closed

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

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