UNIDENTIFIED

386-VC-H

Processor         AM386DX/80386DX/CX486DLC
Processor Speed   33/40MHz
Chip Set          VIA
Max. Onboard DRAM 32MB
Cache             32/64/128/256KB
BIOS              Award
Dimensions        254mm x 218mm
I/O Options       None
NPU Options       80387DX/CX487DLC/3167

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                   Location

  Turbo LED                   J6       Speaker                     J9

  Turbo switch                J7       Power LED & keylock         J10

  Reset switch                J8

                        USER CONFIGURABLE SETTINGS

                 Function                      Jumper         Position

  »   CMOS memory normal operation               J1             Open

      CMOS memory clear                          J1            Closed

  »   Monitor type select                        J2             Open
      monochrome/EGA/VGA

      Monitor type select color                  J2            Closed

  »   NPU synchronous with CPU                   J5          pins 1 & 2
                                                               closed

      NPU asynchronous with CPU                  J5          pins 2 & 3
                                                               closed

  »   CX487DLC disabled                         JN1          pins 2 & 3
                                                               closed

      CX487DLC enabled                          JN1          pins 1 & 2
                                                               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

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

      17MB        (4) 4M x 9     (4) 256K x 9

      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          M10            TAG

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

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

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

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

  Note: M10 is optional and does not have to be installed.

                  CACHE JUMPER CONFIGURATION

  Size      JS1     JS2      JS3      JS4      JS5      JS6

  32KB     2 & 3   2 & 3    2 & 3    1 & 2    1 & 2    1 & 2

  64KB     2 & 3   2 & 3    2 & 3    2 & 3    2 & 3    2 & 3

  128KB    1 & 2   1 & 2    2 & 3    2 & 3    2 & 3    1 & 2

  256KB    2 & 3   1 & 2    1 & 2    2 & 3    2 & 3    2 & 3

  Note: Pins designated should be in the closed position.

                          CPU TYPE CONFIGURATION

        Type               JC1               JC3               JC4

      AM386DX             Open            pins 1 & 2          Closed
                                           closed

   80386DX (PQFP)         Open            pins 2 & 3           Open
                                           closed

   80386DX (PGA)          Open            pins 1 & 2          Closed
                                           closed

      CX486DLC           Closed           pins 1 & 2          Closed
                                           closed