AMERICAN DIGICOM CORPORATION

486M

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       None
NPU Options       4167

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  External battery             J9       Turbo switch               J12

  Power LED & keylock         J10       Turbo LED                  J13

  Speaker                     J11       Reset switch               J14

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Monitor type select color                J1             Closed

      Monitor type select monochrome           J1              Open

  »   CMOS memory normal operation             J8            pins 2 & 3
                                                              closed

      CMOS memory clear                        J8            pins 1 & 2
                                                              closed

  »   CPU speed select 33MHz                   J16           pins 1 & 2
                                                              closed

      CPU speed select 50MHz                   J16           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

      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

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

            CACHE CONFIGURATION

     Size          Bank 0          TAG

     64KB        (8) 8K x 8    (3) 4K x 4

     256KB       (8) 32K x 8   (3) 16K x 4

          CACHE CONFIGURATION

   Size      JP5       JP6       JP7

   64KB      Open     Open      Open

  256KB     Closed   Closed    Closed

                          CPU TYPE CONFIGURATION

       Type               J2                J3                 J4

      80486SX            Open              Open             pins 2 & 3
                                                             closed

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