UNIDENTIFIED

C386SX

Device Type            Mainboard
Processor              80386SX
Processor Speed        16/20MHz
Chip Set               C & T
Maximum Onboard Memory 8MB
Cache                  None
BIOS                   Phoenix
Dimensions             330mm x 216mm
I/O Options            None
NPU Options            80387SX

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Reset switch                P2       Turbo LED                   P5

  Power LED & keylock         P3       External battery            P6

  Speaker                     P4

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

  »   BIOS type select 27256                  JP1           Pins 1 & 2
                                                              closed

      BIOS type select 27512                  JP1           Pins 2 & 3
                                                              closed

  »   CMOS memory normal operation            JP2           Pins 1 & 2
                                                              closed

      CMOS memory clear                       JP2           Pins 2 & 3
                                                              closed

  »   Monitor type select color               JP3             Closed

      Monitor type select monochrome          JP3              Open

  »   Power good signal detect from           JP4           Pins 2 & 3
      board                                                   closed

      Power good signal detect from           JP4           Pins 1 & 2
      power supply                                            closed

  »   Parity check enabled                    JP5             Closed

      Parity check disabled                   JP5              Open

  »   Battery type select 6v                  JP6              Open

      Battery type select 3.6v/4.5v           JP6             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) 1M x 9    (2) 256K x 9   (2) 256K x 9      None

     3.5MB       (2) 1M x 9    (2) 256K x 9   (2) 256K x 9  (2) 256K x 9

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

     4.5MB       (2) 1M x 9    (2) 1M x 9     (2) 256K x 9      None

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

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

     6.5MB       (2) 1M x 9    (2) 1M x 9     (2) 1M x 9    (2) 256K x 9

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

  Note: The location of banks 0, 1, 2 & 3 are unidentified.