
AMERICAN DIGICOM CORPORATION

486WB

Processor         80486SX/80486DX
Processor Speed   33/50MHz
Chip Set          OPTI
Max. Onboard DRAM 32MB
Cache             64/256KB
BIOS              AMI
Dimensions        330mm x 218mm
I/O Options       32-bit external memory card slot
NPU Options       4167

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                  Location

  External battery           J10       32-bit external             S1
                                       memory card

  Power LED & keylock        J23       Reset switch               SW1

  Speaker                    J24       Turbo switch               SW2

  Turbo LED                 JP12

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Monitor type select color                JP1            Closed

      Monitor type select monochrome           JP1             Open

     CMOS memory normal operation             JP2           pins 2 & 3
                                                              closed

      CMOS memory clear                        JP2           pins 1 & 2
                                                              closed

     Bus speed select ATCLK/6                 JP3            Closed

      Bus speed select ATCLK/4                 JP3             Open

     CPU speed select OSC/2                   JP4           pins 2 & 3
                                                              closed

      CPU speed select OSC/1                   JP4           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

      8MB         (4) 256K x 9    (4) 1M 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

                   CACHE CONFIGURATION

  Size       Bank 0         U33 (TAG)       U34 (TAG)

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

  256KB    (8) 32K x 8     (1) 64K x 1     (1) 32K x 8

               CACHE JUMPER CONFIGURATION

  Size       JP8         JP9         JP10        JP11

  64KB      Open         Open        Open        Open

  256KB    Closed       Closed       Open       Closed

                          CPU TYPE CONFIGURATION

      Type               JP5                JP6                JP7

     80486SX            Open             pins 2 & 3            Open
                                           closed

     80486DX          pins 2 & 3         pins 1 & 2           Closed
                       closed              closed

