
UNIDENTIFIED

401 386SX

Processor         80386SX
Processor Speed   16MHz
Chip Set          VLSI
Max. Onboard DRAM 8MB
Cache             None
BIOS              Award
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       80387SX

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                 Location

  Power LED & keylock       JP1        Turbo switch              JP15

  Speaker                   JP2        External battery          JP18

  Reset switch           JP3 or JP17   Turbo LED                 JP20

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     NPU mode select synchronous with         JP4             Open
      CPU

      NPU mode select synchronous with         JP4            Closed
      oscillator installed at X1

     Factory configured - do not alter        JP5              N/A

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

     Factory configured - do not alter        JP9              N/A

     Monitor type select color               JP10           pins 1 & 2
                                                              closed

      Monitor type select monochrome          JP10           pins 2 & 3
                                                              closed

     Factory configured - do not alter       JP11             Open

     Factory configured - do not alter       JP12             Open

     Factory configured - do not alter       JP13            Closed

     Factory configured - do not alter       JP14             Open

     BIOS type select 27256                  JP16           pins 2 & 3
                                                              closed

      BIOS type select 27512                  JP16           pins 1 & 2
                                                              closed

                            DRAM CONFIGURATION

     Size          Bank 0         Bank 1         Bank 2         Bank 3

    512KB        (18) 41256        NONE           NONE           NONE

    512KB           NONE           NONE         (2) 256K x       NONE
                                                    9

     1MB         (18) 41256     (18) 41256        NONE           NONE

     1MB            NONE           NONE         (2) 256K x    (2) 256K x
                                                    9             9

     2MB        (18) 411000        NONE           NONE           NONE

     2MB            NONE           NONE        (2) 1M x 9        NONE

     4MB        (18) 411000     (18) 411000       NONE           NONE

     4MB            NONE           NONE        (2) 1M x 9     (2) 1M x 9

     5MB        (18) 411000     (18) 411000     (2) 256K x    (2) 256K x
                                                    9             9

     6MB        (18) 411000     (18) 411000    (2) 1M x 9        NONE

     8MB        (18) 411000     (18) 411000    (2) 1M x 9     (2) 1M x 9

                         DRAM JUMPER CONFIGURATION

  DRAM mode   Max. Pages    Wait States   DRAM speed     JP6       JP7

     F4           4           0 or 1         80ns       2 & 3     2 & 3

     F1           1           0 or 1        100ns       1 & 2     2 & 3

    W01           4           1 or 2        100ns       2 & 3     1 & 2

    W02           4           2 or 3        120ns       1 & 2     1 & 2

  Note: Pins designated should be in the closed position.

