UNIDENTIFIED

351 386DX/486DLC

Processor         80386DX/CX486DLC
Processor Speed   25/33/40MHz
Chip Set          UMC
Max. Onboard DRAM 32MB
Cache             64/128/256KB
BIOS              MR BIOS
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       80387DX/3167

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  External battery            JP1       Turbo LED                 JP12

  Reset switch                JP9       Speaker                   JP14

  Turbo switch                JP10      Keylock & power LED       JP15

                                     USER CONFIGURABLE SETTINGS

     Function                                           Jumper                    Position

     Monitor type select color                           JP13                      Closed

     Monitor type select monochrome                      JP13                       Open

 »   Coprocessor not installed                       JP18 & JP19                    Open

     Coprocessor installed                           JP18 & JP19                   Closed

                    CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG

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

     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         JP4         JP5         JP6          JP7          JP8

    64KB       pins 1 &    pins 2 &      Open        Open         Open
                  2           3

    128KB      pins 2 &    pins 1 &    pins 1 &      Open        Closed
                  3           2           2

    256KB      pins 1 &    pins 1 &    pins 2 &     Closed       Closed
                  2           2           3

  Note: Pins designated should be in the closed position.

           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