
UNIDENTIFIED

80386SX-C

Processor         80386SX
Processor Speed   16/20/25MHz
Chip Set          VLSI
Max. Onboard DRAM 16MB
SRAM Cache        None
BIOS              AMI
Dimensions        220mm x 180mm
I/O Options       None
NPU Options       80387SX

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                   Location

  Speaker                     J5       External battery            J8

  Turbo switch                J6       Power LED & keylock         J10

  Turbo LED                   J7       Reset switch                J15

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Pipeline mode enabled                    JP1            closed

      Pipeline mode disabled                   JP1             open

     CMOS memory normal operation             JP6           pins 1 & 2
                                                              closed

      CMOS memory clear                        JP6           pins 3 & 4
                                                              closed

     Battery select internal                  JP7            closed

      Battery select external                  JP7             open

     Monitor type select monochrome          JP11             open

      Monitor type select color               JP11            closed

     Parity check enabled                    JP90            closed

      Parity check disabled                   JP90             open

     Chipset type select 82C311              JP91             open

     Chipset type select 82C310              JP91             open

     Keyboard controller set on pin 23        SSI           pins 1 & 2
                                                              closed

      Keyboard controller set on pin 27        SSI           pins 1 & 3
                                                              closed

      Keyboard controller set on pin 30        SSI           pins 1 & 4
                                                              closed

      Keyboard controller set on pin 32        SSI           pins 1 & 5
                                                              closed

                            DRAM CONFIGURATION

     Size          Bank 0        Bank 1         Bank 2         Bank 3

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

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

     1.5MB      (2) 256K x 9   (2) 256K x 9   (2) 256K x 9      NONE

      2MB       (2) 256K x 9   (2) 256K x 9   (2) 256K x 9  (2) 256K x 9

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

      3MB       (2) 256K x 9   (2) 256K x 9   (2) 1M x 9        NONE

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

      5MB       (2) 256K x 9   (2) 256K x 9   (2) 1M x 9     (2) 1M x 9

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

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

      8MB        (2) 4M x 9       NONE           NONE           NONE

     12MB        (2) 1M x 9    (2) 1M x 9     (2) 4M x 9        NONE

     16MB        (2) 4M x 9    (2) 4M x 9        NONE           NONE

