UNIDENTIFIED

386DX W/B

Processor         80386DX/CX486DLC
Processor Speed   33/40MHz
Chip Set          OPTI
Max. Onboard DRAM 32MB
Cache             64/128/256KB
BIOS              AMI
Dimensions        254mm x 218mm
I/O Options       None
NPU Options       CX487DLC

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  External battery             J1       Turbo switch              JP11

  Power LED & keylock         J18       Turbo LED                 JP12

  Speaker                     J19       Reset switch               SW1

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   CMOS memory normal operation            JP3           pins 2 & 3
                                                              closed

      CMOS memory clear                       JP3           pins 1 & 2
                                                              closed

  »   Monitor type select color               JP4             Closed

      Monitor type select monochrome          JP4              Open

  »   CPU clock type select single            JP7           pins 2 & 3
      phase                                                   closed

      CPU clock type select double            JP7           pins 1 & 2
      phase                                                   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         Bank 1          TAG

     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      JP6      JP8       JP9      JP10      JP17      JP18

   64KB     Open      Open     Open      2 & 3     Open      Open

  128KB     Closed   Closed    Open      1 & 2     Open     Closed

  256KB     Closed   Closed    Closed    2 & 3    Closed    Closed

  Note: Pins designated should be in the closed position.

            CPU TYPE CONFIGURATION

    Type        JP1         JP5        JP13

   Cyrix      Closed      Closed      Closed

   Intel       Open        Open        Open

  Note: The location of JP1 is unidentified.