J-MARK COMPUTER CORPORATION

386-25

Processor              AM386/80386 (exact location unidentified)
Processor Speed        25MHz
Chip Set               OPTI
Video Chip Set         None
Maximum Onboard Memory 16MB ( 8MB on external card)
Maximum Video Memory   None
Cache                  None
BIOS                   AMI
Dimensions             330mm x 218mm
I/O Options            External memory card
NPU Options            80387/3167

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Turbo LED                   CR4      External memory card        SL1

  External battery            J10      Reset switch                SW1

  Speaker                     J22      Turbo switch                SW2

  Power LED & keylock         J23

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

      Monitor type select color               JP1           Pins 1 & 2
                                                              closed

      Monitor type select monochrome          JP1           Pins 2 & 3
                                                              closed

              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

[Image]

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     1MB        (4) 256K x 9      None           None           None

     2MB        (4) 256K x 9   (4) 256K x 9      None           None

     3MB        (4) 256K x 9   (4) 256K x 9   (4) 256K x 9      None

     4MB        (4) 256K x 9   (4) 256K x 9   (4) 256K x 9  (4) 256K x 9

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

     5MB        (4) 256K x 9   (4) 1M x 9        None           None

     6MB        (4) 1M x 9     (4) 256K x 9   (4) 256K x 9      None

     6MB        (4) 256K x 9   (4) 256K x 9   (4) 1M x 9        None

     6MB        (4) 256K x 9   (4) 1M x 9     (4) 256K x 9      None

     7MB        (4) 256K x 9   (4) 256K x 9   (4) 1M x 9    (4) 256K x 9

     7MB        (4) 256K x 9   (4) 1M x 9     (4) 256K x 9  (4) 256K x 9

     7MB        (4) 1M x 9     (4) 256K x 9   (4) 256K x 9  (4) 256K x 9

                        DRAM CONFIGURATION (CON’T)

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     8MB        (4) 1M x 9     (4) 1M x 9        None           None

     9MB        (4) 256K x 9   (4) 1M x 9     (4) 1M x 9        None

     9MB        (4) 1M x 9     (4) 1M x 9     (4) 256K x 9      None

     9MB        (4) 1M x 9     (4) 256K x 9   (4) 1M x 9        None

     10MB       (4) 256K x 9   (4) 256K x 9   (4) 1M x 9     (4) 1M x 9

     10MB       (4) 256K x 9   (4) 1M x 9     (4) 1M x 9    (4) 256K x 9

     10MB       (4) 1M x 9     (4) 1M x 9     (4) 256K x 9  (4) 256K x 9

     10MB       (4) 1M x 9     (4) 256K x 9   (4) 1M x 9    (4) 256K x 9

     12MB       (4) 1M x 9     (4) 1M x 9     (4) 1M x 9        None

     13MB       (4) 256K x 9   (4) 1M x 9     (4) 1M x 9     (4) 1M x 9

     13MB       (4) 1M x 9     (4) 1M x 9     (4) 1M x 9    (4) 256K x 9

     13MB       (4) 1M x 9     (4) 256K x 9   (4) 1M x 9     (4) 1M x 9

     16MB       (4) 1M x 9     (4) 1M x 9     (4) 1M x 9     (4) 1M x 9

  Note: If this board has 16MB installed, the on board memory is
  disabled.