ZEOS INTERNATIONAL, LTD.

386SX-20

Processor              80386SX
Processor Speed        20MHz
Chip Set               Unidentified
Max. Onboard DRAM      16MB
Cache                  None
BIOS                   Award
Dimensions             330mm x 218mm
I/O Options            serial ports (2), parallel port, floppy drive
                       interface, IDE interface, game port
NPU Options            80387SX

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  External battery            J1       Turbo switch                J10

  Game port                   J3       Reset switch                J11

  Parallel port               J5       Turbo LED                   J12

  Serial port 2               J6       Power LED & keylock         J13

  Serial port 1               J7       Speaker                     J14

  Floppy drive interface      J8       IDE interface LED           J15

  IDE interface               J9

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Monitor type select CGA                  J4             Closed

      Monitor type select Mono/EGA/VGA         J4              Open

  »   Game port enabled                        P1             Closed

      Game port disabled                       P1              Open

  »   Parallel port interupt select           PIRQ           pins 1 & 2
      IRQ7                                                    closed

      Parallel port interupt select           PIRQ           pins 2 & 3
      IRQ5                                                    closed

      Parallel port interupt disabled         PIRQ           all open

  »   Serial port 1 (COM1) interupt           SIRQ1          pins 2 & 3
      select IRQ4                                             closed

      Serial port 1 (COM1) interupt           SIRQ1          pins 1 & 2
      select IRQ3                                             closed

      Serial port 1 (COM1) interupt           SIRQ1          all open
      disabled

  »   Serial port 2 (COM2) interupt           SIRQ2          pins 1 & 2
      select IRQ3                                             closed

      Serial port 2 (COM2) interupt           SIRQ2          pins 2 & 3
      select IRQ4                                             closed

      Serial port 2 (COM2) interupt           SIRQ2          all open
      disabled

                            DRAM CONFIGURATION

     Size          Bank 0         Bank 1        Bank 2         Bank 3

     512KB       (2) 256K x        NONE          NONE           NONE
                     9

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

     1.5MB       (2) 256K x     (2) 256K x     (2) 256K x       NONE
                     9              9              9

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

      2MB        (2) 1M x 9        NONE          NONE           NONE

      3MB        (2) 1M x 9     (2) 256K x     (2) 256K x       NONE
                                    9              9

      4MB        (2) 1M x 9     (2) 1M x 9       NONE           NONE

      5MB        (2) 1M x 9     (2) 1M x 9     (2) 256K x   (2) 256K x 9
                                                   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) 4M x 9     (2) 256K x     (2) 256K x       NONE
                                    9              9

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

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

     12MB        (2) 4M x 9     (2) 1M x 9    (2) 1M x 9        NONE

     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