UNIDENTIFIED

386-40/33 CACHE SYSTEM BOARD

Processor         80386DX/AMD386DX/CX486DLC
Processor Speed   33/40MHz
Chip Set          ALI
Max. Onboard DRAM 32MB
Cache             64/128/256KB
BIOS              AMI
Dimensions        254mm x 218mm
I/O Options       None
NPU Options       80387SX/CX87DLC/83D87

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Power LED & keylock         CN1      Speaker                     CN4

  Turbo LED                   CN2      Reset switch                CN5

  Turbo switch                CN3      External battery            CN6

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Factory configured - do not             JP2              Open
      alter

  »   Factory configured - do not             JP3              Open
      alter

              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) 1M x 9     (4) 256K x 9

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

      16MB        (4) 4M x 9         NONE

      17MB        (4) 4M x 9     (4) 256K 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          JP4            JP5            JP6             JP7

    64KB          Open           Open           Open            Open

   128KB         Closed         Closed          Open         pins 2 & 3
                                                               closed

   256KB         Closed         Closed         Closed        pins 1 & 2
                                                               closed