COMPUDYNE

ALL-IN-ONE MULTI-CPU SYSTEM BOARD

Processor      80386DX/80486SX/CX486DLC/TI486DLC/80486DX/80486DX2
Processor      20/25/33/40/50(internal)/50/66(internal)MHz
Speed
Chip Set       Unidentified
Video Chip Set None
Maximum        32MB
Onboard Memory
Maximum Video  None
Memory
Cache          64/128/256KB
BIOS           AMI
Dimensions     330mm x 218mm
I/O Options    32-bit VESA local bus slot, floppy drive interface, game
               interface, IDE interface, parallel port, serial ports (2)
NPU Options    80387DX

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Parallel port              CN1       Speaker                    J11

  Game interface             CN2       Reset switch               J12

  Serial port                CN3       IDE interface LED          J13

  Serial port                CN4       Turbo switch               J14

  IDE interface              CN5       Turbo LED                  J15

  Floppy drive               CN6       Power LED & keylock        J16
  interface

  External battery            J2       32-bit VESA local bus      SL1
                                       slot

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

      Battery type select internal          W1              Closed

      Battery type select external          W1               Open

      Monitor type select color             W2              Closed

      Monitor type select monochrome        W2               Open

      Jumper information unavailable        W9           Unidentified

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

      1MB         (4) 256K x 9       None

      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         Bank 1          TAG            U64

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

     128KB      (4) 32K x 8        None       (1) 8K x 8     (1) 64K x 1

     256KB      (4) 32K x 8    (4) 32K x 8    (1) 8K x 8     (1) 64K x 1

                        CACHE JUMPER CONFIGURATION

  Size     W4     W5        W6      W13   W19     W20     W21       W22

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

  128KB     1    Open     Closed    1 &   Open    Open    Open     Closed
            &                       2
           2

  256KB     2    Closed   Closed    2 &   Open    Open   Closed    Closed
            &                       3
           3

  Note: Pins designated should be in the closed position.

               CPU SPEED SELECTION

  Speed      W10       W14       W15       W16

  20MHz      Open     Closed     Open      Open

  25MHz      Open      Open     Closed    Closed

  33MHz      Open      Open     Closed     Open

  40MHz     Closed     Open      Open     Closed

  50iMHz     Open      Open     Closed    Closed

  50MHz      Open      Open     Closed    Closed

  66iMHz     Open      Open     Closed     Open

                            CPU TYPE SELECTION

     Type       W3      W7     W8      W17      W18       W23       W24

   80386DX      2 &     1 &    2 &     1 & 2   2 & 3     Open       N/A
                 3      2       3

   CX486DLC     1 &     1 &    2 &     1 & 2   2 & 3     Open       N/A
                 2      2       3

   TI486DLC     1 &     1 &    2 &     1 & 2   2 & 3     Open       N/A
                 2      2       3

   80486SX      1 &     1 &    1 &     2 & 3   1 & 2     Open      1 & 2
                 2      2       2

   80486DX      1 &     1 &    1 &     2 & 3   1 & 2     Open      2 & 3
                 2      2       2

  80486DX-50    1 &     2 &    1 &     2 & 3   1 & 2    Closed     2 & 3
                 2      3       2

   80486DX2     1 &     1 &    1 &     2 & 3   1 & 2     Open      2 & 3
                 2      2       2

  Note: Pins designated should be in the closed position.

  VL BUS WAIT STATE SELECTION

    Setting           W11

       0              Open

       1             Closed

  VL BUS SPEED SELECTION

    Speed         W12

  <= 33MHz       Closed

   >33 MHz        Open