COMPUADD, INC.

386 SERIES MODELS 320/325

Processor              80386DX
Processor Speed        20/25MHz
Chip Set               Unidentified
Max. Onboard DRAM      16MB (on external memory card)
Cache                  32KB (exact location unidentified)
BIOS                   Unidentified
Dimensions             330mm x 218mm
I/O Options            32-bit external memory card, IDE interface, serial
                       ports (2), parallel port
NPU Options            80387DX

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Speaker                     J1       IDE interface LED          J15

  Power LED & keylock         J4       Reset switch               J24

  External battery            J7       32-bit external            SL1
                                       memory card

  IDE interface               J8

                        USER CONFIGURABLE SETTINGS

              Function                  Jumper/Switch        Position

  »   Monitor type select color              J3               Closed

      Monitor type select                    J3                Open
      monochrome

  »   Cache enabled                          J6               Closed

      Cache disabled                         J6                Open

  »   IDE active high reset                  J9              pins 1 & 2
                                                              closed

      IDE active low reset                   J9              pins 2 & 3
                                                              closed

  »   IDE interface enabled                  J10              Closed

      IDE interface disabled                 J10               Open

  »   Cache enabled                          J14             pins 1 & 2
                                                              closed

      Cache disabled                         J14             pins 2 & 3
                                                              closed

  »   Serial port 1 enabled (IRQ4)          SW1/1               On

      Serial port 1 disabled                SW1/1               Off
      (IRQ4)

  »   Serial port 2 enabled (IRQ3)          SW1/2               On

      Serial port 2 disabled                SW1/2               Off
      (IRQ3)

  »   Parallel port enabled                 SW1/3               On

      Parallel port disabled                SW1/3               Off

  »   Parallel port IRQ select              SW1/4               On
      IRQ7

      Parallel port IRQ select              SW1/4               Off
      IRQ5

  »   Factory configured - do not           SW1/5               Off
      alter

  »   Factory configured - do not           SW1/6               Off
      alter

  Note : On some revisions, switch SW1 may be a 4-position switch.

                          CACHE CONFIGURATION

  Note: The location and configuration of the cache is unidentified.

                      NPU CONFIGURATION

       Setting               J12                  J13

  NPU not installed         Closed                Open

    NPU installed            Open                Closed

                   BIOS CONFIGURATION

            Size                        J5

           27128             pins 1 & 8, 2 & 7 closed

           27256             pins 3 & 6, 4 & 5 closed

[Image]

                        USER CONFIGURABLE SETTINGS

                Function                     Switch          Position

  »   Memory between 512KB & 640KB           SW1/5              On
      enabled

      Memory between 512KB & 640KB           SW1/5             Off
      disabled

  »   Memory between 256KB & 512KB           SW1/6              On
      enabled

      Memory between 256KB & 512KB           SW1/6             Off
      disabled

  »   Factory configured - do not            SW1/7             Off
      alter

  »   Factory configured - do not            SW1/8             Off
      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

         DRAM SWITCH CONFIGURATION

  Size     SW1/1   SW1/2    SW1/3    SW1/4

   1MB      Off     Off      Off      Off

   2MB      On      Off      Off      Off

   3MB      On       On      Off      Off

   4MB      On       On       On      Off

   4MB      Off     Off      Off       On

   8MB      On      Off      Off       On

  12MB      On       On      Off       On

  16MB      On       On       On       On