UNIDENTIFIED

KMC-OPTI291

Processor         80386SX/CX486SLC
Processor Speed   16/20/25/33/40MHz
Chip Set          OPTI
Max. Onboard DRAM 16MB
SRAM Cache        16/64KB
BIOS              AMI
Dimensions        220mm x 220mm
I/O Options       None
NPU Options       80387SX/CX83S87

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  External battery             J1       Turbo LED                  JP4

  Power LED & keylock         J18       Reset switch               SW1

  Speaker                     J19       Turbo switch               SW2

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   CMOS memory normal operation             JP1           pins 2 & 3
                                                              closed

      CMOS memory clear                        JP1           pins 1 & 2
                                                              closed

  »   Monitor type select color                JP2            closed

      Monitor type select monochrome           JP2             open

                            DRAM CONFIGURATION

   Size         Bank 0         Bank 1          Bank 2          Bank 3

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

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

   10MB       (2) 1M x 9     (2) 4M x 9         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

             SRAM CONFIGURATION

     Size        Cache SRAM        TAG

     16KB        (2) 8K x 8    (1) 8K x 8

     64KB        (2) 32K x 8   (1) 8K x 8

  SRAM JUMPER CONFIGURATION

   Size      JP5       JP6

   16KB      open     open

   64KB     closed   closed