UNIDENTIFIED

UMC 386

Processor         80386DX
Processor Speed   25MHz
Chip Set          UMC
Max. Onboard DRAM 12MB
Cache             None
BIOS              AMI/Award/Phoenix
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       80387/3167

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                   Location

  Turbo LED                  JP1       External battery            JP9

  Turbo switch               JP2       Speaker                    JP10

  Reset switch               JP8       Power LED & keylock        JP11

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Factory configured - do not alter        JP3            Closed

  »   Monitor type select color                JP4            Closed

      Monitor type select monochrome           JP4             Open

  »   Factory configured - do not alter        JP5              N/A

  »   NPU enabled                              JP6            Closed

      NPU disabled                             JP6             Open

  »   NPU type select 80387                    JP7            Closed

      NPU type select 3167                     JP7             Open

  »   Factory configured - do not alter       JP15              N/A

  »   Factory configured - do not alter       JP16              N/A

  »   BIOS type select 27128                  JP17           pins 1 & 2
                                                              closed

      BIOS type select 27256                  JP17           pins 2 & 3
                                                              closed

  »   Factory configured - do not alter       JP18              N/A

                      DRAM CONFIGURATION

      Size          Bank 0          Bank 1          Bank 2

      1MB        (4) 256K x 9        NONE            NONE

      2MB        (4) 256K x 9    (4) 256K x 9        NONE

      3MB        (4) 256K x 9    (4) 256K x 9    (4) 256K x 9

      4MB         (4) 1 M x 9        NONE            NONE

      8MB         (4) 1M x 9      (4) 1M x 9         NONE

      12MB        (4) 1M x 9      (4) 1M x 9      (4) 1M x 9

       DRAM JUMPER CONFIGURATION

   Size     JP12      JP13      JP14

   1MB     Closed    Closed    Closed

   2MB      Open     Closed    Closed

   3MB      Open     Closed     Open

   4MB     Closed     Open     Closed

   8MB      Open      Open     Closed

   12MB     Open      Open      Open