UNIDENTIFIED

C & T TURBO MAINBOARD

Processor         80286
Processor Speed   12 MHz
Chip Set          C & T
Max. Onboard DRAM 4MB
Cache             None
BIOS              AMI/C & T
Dimensions        260mm x 220mm
I/O Options       None
NPU Options       80287

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  External battery            BAT       Turbo LED                  JP1

  Power LED & keylock          J1       Reset switch               JP2

  Speaker                      J2       Turbo switch               JP3

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   NPU synchronous with CPU                 JP4           pins 1 & 2
                                                              closed

      NPU asynchronous with CPU                JP4           pins 2 & 3
                                                              closed

  »   Monitor type select color                JP6           pins 2 & 3
                                                              closed

      Monitor type select monochrome           JP6           pins 1 & 2
                                                              closed

  »   Power good signal detect from            JP7           pins 2 & 3
      power supply                                            closed

      Power good signal detect from            JP7           pins 1 & 2
      board                                                   closed

       DRAM CONFIGURATION (DIP)

    Size        Bank 0      Bank 1

    512KB      (4) 44256     NONE

    640KB      (4) 44256   (4) 4464

     1MB       (4) 44256   (4) 44256

   DRAM PARITY CONFIGURATION (DIP)

    Size          P0          P1

    512KB      (2) 41256     NONE

    640KB      (2) 41256   (2) 4164

     1MB       (2) 41256   (2) 41256

           DRAM CONFIGURATION (SIP)

      Size          Bank 0          Bank 1

     512KB        (2) 256K x 9       NONE

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

      2MB         (2) 1M x 9         NONE

      4MB         (2) 1M x 9      (2) 1M x 9