UNIDENTIFIED

ALI 386 SYSTEM BOARD (3DIAD-1.1)

Processor         AM386SX/80386SX/CX486DLC
Processor Speed   33/40MHz
Chip Set          ALI
Max. Onboard DRAM 32MB
Cache             64/128/256KB
BIOS              AMI
Dimensions        254mm x 218 mm
I/O Options       None
NPU Options       80387SX/3167

[Image]

                                CONNECTIONS

  Purpose                   Location     Purpose                Location

  Reset switch                 J5        Power LED & keylock       J8

  Speaker                      J6        External battery          J4

  Turbo switch/LED             J7
  connector

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Monitor type select color               JP1           pins 2 & 3
                                                              closed

      Monitor type select monochrome          JP1           pins 1 & 2
                                                              closed

  »   Factory configured - do not             JP2           pins 2 & 3
      alter                                                   closed

  »   Factory configured - do not             JP3              Open
      alter

  »   Factory configured - do not             JP7           pins 1 & 2
      alter                                                   closed

  »   Factory configured - do not             JP8           pins 2 & 3
      alter                                                   closed

  »   NPU type select 80387                   JP9           pins 1 & 2
                                                              closed

      NPU type select Weitek 3167             JP9           pins 2 & 3
                                                              closed

  Note: The locations of JP2, JP3, JP7, and JP8 are unidentified.

              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

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

      16MB        (4) 4M x 9         NONE

      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                     JP5                       JP6

         64KB                     Open               pins 1 & 2 closed

         128KB              pins 1 & 2, 3 & 4        pins 2 & 3 closed
                                 closed

         256KB           pins 1 & 2, 3 & 4, 5 &      pins 1 & 2 closed
                                6 closed

                         NPU CONFIGURATION

     Select            JP10             JP11            JP12

    Installed         Closed           Closed          Closed

  Not installed        Open             Open            Open