CALIBER COMPUTER

EISA-486 WB

Processor            80486SX/80487SX/80486DX/80486DX2
Processor Speed      20/25/33/50(internal)/50/66(internal)MHz
Chip Set             OPTI
Max. Onboard DRAM    128MB
Cache                64/128/256/512KB
BIOS                 AMI
Dimensions           330mm x 215mm
I/O Options          None
NPU Options          4167

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  Speaker                      J4       Reset switch               S9

  Power LED & keylock          J5       Turbo switch               SW

  Turbo LED                   LED

                        USER CONFIGURABLE SETTINGS

                 Function                     Jumper         Position

  »   EXRDY/CHRDY for ISA cards select         JP0             Open
      normal operation

      EXRDY/CHRDY for ISA cards select         JP0            Closed
      non-standard ISA cards

  »   Monitor type select color                JP4            Closed

      Monitor type select monochrome           JP4             Open

  »   CPU speed select iOSC/1                  JP8           pins 1 & 2
                                                              closed

      CPU speed select iOSC/2                  JP8           pins 2 & 3
                                                              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

     64MB        (4) 16M x 9      NONE

     68MB        (4) 1M x 9    (4) 16M x 9

     80MB        (4) 4M x 9    (4) 16M x 9

     128MB       (4) 16M x 9   (4) 16M x 9

              CACHE CONFIGURATION

      Size          Bank 0          Bank 1

      64KB        (4) 8K x 8      (4) 8K x 8

     128KB        (4) 32K x 8        NONE

     256KB        (4) 32K x 8    (4) 32K x 8

     512KB        (4) 128K x 8       NONE

                         CACHE TAG CONFIGURATION

     Size        TAG (U49)      TAG (U50)      TAG (U51)      TAG (U64)

     64KB        (4) 8K x 8    (1) 16K x 1       NONE        (1) 64K x 1

     128KB       (4) 8K x 8    (1) 16K x 1       NONE        (1) 64K x 1

     256KB      (1) 16K x 1     (1) 8K x 8    (1) 8K x 8     (1) 64K x 1

     512KB          NONE       (1) 32K x 8       NONE        (1) 64K x 1

                        CACHE JUMPER CONFIGURATION

  Size    JP5     JP10      JP11      JP12     JP13      JP14      JP15

  64KB     2 &    Open      Open      Open     Open      Open      Open
           3

  128KB    1 &    Open      Open     Closed    Open     Closed     Open
           2

  256KB    2 &    Open     Closed    Closed   Closed    Closed     Open
           3

  512KB    1 &   Closed    Closed    Closed   Closed    Closed    Closed
           2

  Note: Pins designated should be in the closed position.

  CPU SPEED CONFIGURATION

    Speed          JP6

    20MHz         Closed

    25MHz          Open

    33MHz          Open

    50iMHz         Open

    50MHz          Open

    66iMHz         Open

                          CPU TYPE CONFIGURATION

          Type                     JP7                      JP9

         80486SX            pins 2 & 3 closed               Open

         80487SX             pins 1 & 2, 3 & 4       pins 1 & 2 closed
                                  closed

         80486DX             pins 1 & 2, 3 & 4       pins 2 & 3 closed
                                  closed

        80486DX2             pins 1 & 2, 3 & 4       pins 2 & 3 closed
                                  closed

                       EISA BUS SPEED CONFIGURATION

      Speed              JP1               JP2                 JP3

      20MHz             Open               Open         pins 2 & 3 closed

      25MHz             Open               Open         pins 1 & 2 closed

      33MHz            Closed              Open         pins 1 & 2 closed

      50MHz            Closed             Closed        pins 1 & 2 closed