OMNITEL, INC.

386SX Rev. 1

Processor         80386SX
Processor Speed   20/25MHz
Chip Set          OPTI
Max. Onboard DRAM 16MB
Cache             16/32/64KB
BIOS              MR
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       80387SX

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  External battery             J1       Reset switch              JP10

  Power LED & keylock         J22       Turbo switch              JP11

  Turbo LED                   JP8       Speaker                   JP21

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Diagnostics enabled                      JP9            Closed

      Diagnostics disabled                     JP9             Open

  »   Battery select external                 JP13           pins 1 & 2
                                                              closed

      Battery select internal                 JP13           pins 2 & 3
                                                              closed

                            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

     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

                    CACHE CONFIGURATION

       Size               Bank 0             Bank 1

       16KB             (2) 8K x 8            NONE

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

       64KB            (2) 32K x 8            NONE

  Note:TAG is factory installed and is not configurable.

                   CACHE JUMPER CONFIGURATION

   Size        JP3        JP4        JP5        JP6       JP7

   16KB       1 & 2      1 & 2      1 & 2      Open       Open

   32KB       2 & 3      1 & 2      1 & 2     Closed      Open

   64KB       2 & 3      2 & 3      2 & 3      Open      Closed

  Note: Pins designated should be in the closed position.