UNIDENTIFIED

386SXC-990-B

Processor              80386SX
Processor Speed        20MHz
Chip Set               Unidentified
Video Chip Set         None
Maximum Onboard Memory 16MB
Maximum Video Memory   None
Cache                  32/64KB
BIOS                   AMI/Award
Dimensions             324mm x 222mm
I/O Options            None
NPU Options            80387SX

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  Power LED & keylock          H1       Speaker                    H3

  Reset switch                 H2       Turbo LED                  H6

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

      Monitor type select color                H5             Closed

      Monitor type select monochrome           H5              Open

      NPU not installed                       JP21            Closed

      NPU installed                           JP21             Open

                            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

     2.5MB       (2) 1M x 9    (2) 256K x 9       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

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

     8.5MB       (2) 4M x 9    (2) 256K x 9       None           None

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

     9.5MB       (2) 4M x 9    (2) 256K x 9   (2) 256K x 9   (2) 256K x 9

     10MB        (2) 4M x 9     (2) 1M x 9        None           None

    10.5MB       (2) 4M x 9     (2) 1M x 9    (2) 256K x 9       None

     11MB        (2) 4M x 9     (2) 1M x 9    (2) 256K x 9   (2) 256K x 9

     12MB        (2) 4M x 9     (2) 1M x 9     (2) 1M x 9

    12.5MB       (2) 4M x 9     (2) 1M x 9     (2) 1M x 9    (2) 256K x 9

     14MB        (2) 4M x 9     (2) 1M x 9     (2) 1M x 9     (2) 1M x 9

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

           CACHE CONFIGURATION

     Size        Bank 0        Bank 1

     32KB       (4) 8K x 8      None

     64KB       (4) 8K x 8   (4) 8K x 8

        CACHE JUMPER CONFIGURATION

        Size                 JP2

        32KB          Pins 1 & 2 closed

        64KB          Pins 2 & 3 closed