
UNIDENTIFIED

386DX CACHE MAINBOARD

Processor         80386DX
Processor Speed   33/40MHz
Chip Set          OPTI
Max. Onboard DRAM 32MB
Cache             128KB
BIOS              AMI
Dimensions        220mm x 170mm
I/O Options       None
NPU Options       80387DX

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  External battery             J1       Turbo switch               JP4

  Power LED & keylock         J16       Speaker                    JP6

  Turbo LED                   JP3       Reset switch               S1

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Monitor type select monochrome          JP1              Open

      Monitor type select color               JP1             Closed

     CMOS memory normal operation            JP2           pins 1 & 2
                                                              closed

      CMOS memory clear                       JP2           pins 2 & 3
                                                              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

      8MB         (4) 1M x 9      (4) 1M x 9

      16MB        (4) 4M x 9         NONE

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

     CACHE CONFIGURATION

     Size          Bank 0

     128KB      (4) 32K x 8

   CPU SPEED CONFIGURATION

  Speed      JP7      JP8

  50MHz     Closed    Open

  66MHz     Open     Closed

  80MHz     Open      Open

