
CACHE COMPUTERS, INC.

CACHE 486-25/33 EISA (Model 321)


Processor         80486DX
Processor Speed   25/33MHz
Chip Set          Intel
Max. Onboard DRAM 64MB
Cache             128/256KB
BIOS              Phoenix
Dimensions        355mm x 304mm
I/O Options       None
NPU Options       4167

[Image]

                                CONNECTIONS

  Purpose               Location      Purpose                Location

  External battery        JP4         Reset                    JP18

  Auxiliary               JP5         Power LED &              JP19
  keyboard                            keylock

  Speaker                 JP17

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Factory configured - do not             JP11              N/A
      alter

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     1MB        (4) 256K x 9      NONE           NONE           NONE

     2MB        (4) 256K x 9   (4) 256K x 9      NONE           NONE

     3MB        (4) 256K x 9   (4) 256K x 9   (4) 256K x 9      NONE

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

     4MB        (4) 1M x 9        NONE           NONE           NONE

     8MB        (4) 1M x 9     (4) 1M x 9        NONE           NONE

     12MB       (4) 1M x 9     (4) 1M x 9     (4) 1M x 9        NONE

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

     16MB       (4) 4M x 9        NONE           NONE           NONE

     32MB       (4) 4M x 9     (4) 4M x 9        NONE           NONE

     48MB       (4) 4M x 9     (4) 4M x 9     (4) 4M x 9        NONE

     64MB       (4) 4M x 9     (4) 4M x 9     (4) 4M x 9     (4) 4M x 9

                         DRAM JUMPER CONFIGURATION

  SIMM Size        JP9            JP10           JP13           JP14

    256KB        pins 1&2       pins 2&3       pins 2&3        pins 2&3
                 closed          closed         closed         closed

     1MB         pins 1&2       pins 1&2       pins 2&3        pins 2&3
                 closed          closed         closed         closed

     4MB         pins 2&3       pins 1&2       pins 1&2        pins 1&2
                 closed          closed         closed         closed

                   DRAM SWITCH CONFIGURATION

  SIMM Size     SW3/1        SW3/2        SW3/3        SW3/4

    256KB         On          Off          Off          Off

     1MB         Off          Off          On           Off

     4MB         Off           On          On           Off

                    CACHE CONFIGURATION

            Size                         Bank 0

            128KB                     (4) 32K x 8

            256KB                     (8) 32K x 8

  Note:Locations and sizes of cache and tag are unknown.

                        CACHE JUMPER CONFIGURATION

    Size          JP15            JP16           JP20           JP21

    128KB       pins 1 & 2     pins 2 & 3     pins 2 & 3      pins 2 & 3
                 closed          closed         closed         closed

    256KB       pins 2 & 3     pins 1 & 2     pins 1 & 2      pins 1 & 2
                 closed          closed         closed         closed

                          CPU SPEED CONFIGURATION

  CPU speed    Bus speed     SW2/1       SW2/2       SW2/3       SW2/4

    25MHz      8.33MHz        On          On          Off         Off

    33MHz      8.25MHz        Off         On          Off         Off

