PC BRAND

HI-PERFORMANCE SYSTEM

Processor           80386DX/80486SX/80486DX (depends on CPU card
                    installed)
Processor Speed     20/33MHz
Chip Set            Unidentified
Max. Onboard DRAM   32MB
Cache               64/128/256KB (on external CPU card)
BIOS                Unidentified
Dimensions          330mm x 218mm
I/O Options         Parallel port, serial ports (2), floppy drive
                    interface, IDE interface, CPU expansion slot, riser
                    slot
NPU Options         80387DX

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Serial port 2               J2       External battery            J10

  Serial port 1               J3       Speaker                     J13

  Parallel port               J4       Power LED & keylock         J23

  Auxiliary speaker           J5       Riser Card                  SL1

  IDE interface               J8       CPU expansion slot          SL2

  Floppy drive interface      J9       Reset switch                SW1

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Factory configured - do not             J11              N/A
      alter

  »   On board RAM 256KB to 640KB             JP1        pins 1 & 2 open
      enabled

      On board RAM 256KB to 640KB             JP1           pins 1 & 2
      disabled                                                closed

  »   On board RAM 512KB to 640KB             JP1        pins 3 & 4 open
      enabled

      On board RAM 512KB to 640KB             JP1           pins 3 & 4
      disabled                                                closed

  »   Security lock disabled                  JP1           pins 5 & 6
                                                              closed

      Security lock enabled                   JP1        pins 5 & 6 open

  »   Floppy drive interface enabled          JP2           pins 1 & 2
                                                              closed

      Floppy drive interface disabled         JP2           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

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

     16MB       (4) 4M x 9      NONE

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

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

[Image]

                    CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG

     32KB        (4) 8K x 8        NONE       (1) 8K x 8

     64KB        (4) 8K x 8     (4) 8K x 8    (1) 8K x 8

     128KB      (4) 32K x 8        NONE       (1) 8K x 8

     256KB      (4) 32K x 8    (4) 32K x 8    (1) 32K x 8

                  CACHE JUMPER CONFIGURATION

        Size                 JP2                  JP3

        32KB           pins 1 & 2 closed   pins 1 & 2 closed

        64KB           pins 1 & 2 closed   pins 1 & 2 closed

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

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

  Note: The location of jumpers JP2 & JP3 are unidentified.

[Image]

                    CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG

     32KB        (4) 8K x 8        NONE       (1) 8K x 8

     64KB        (4) 8K x 8     (4) 8K x 8    (1) 8K x 8

     128KB      (4) 32K x 8        NONE       (1) 8K x 8

     256KB      (4) 32K x 8    (4) 32K x 8    (1) 32K x 8

                  CACHE JUMPER CONFIGURATION

        Size                 JP2                  JP3

        32KB           pins 1 & 2 closed   pins 1 & 2 closed

        64KB           pins 1 & 2 closed   pins 1 & 2 closed

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

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

  Note: The location of jumpers JP2 & JP3 are unidentified.

          MISCELLANEOUS TECHNICAL NOTE

  Note: The location of pin 1 is unidentified.