ZEOS INTERNATIONAL, LTD.

UPGRADABLE SYSTEMS MAINBOARD

Processor          80386/80486SX/80487SX/80486DX (On proprietary CPU cards)
Processor Speed    20/25/33MHz
Chip Set           Unidentified
Max. Onboard DRAM  32MB
Cache              128KB
BIOS               Award
Dimensions         330mm x 218mm
I/O Options        floppy drive interface, game port, IDE interface,
                   parallel port, serial ports (2),

                   proprietary CPU card slot
NPU Options        80387

[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              J8        IDE interface LED          J15
  interface

  IDE interface             J9        Proprietary CPU card   CPU1 & CPU2
                                      slot

                        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

      1MB         (4) 256K x 9       NONE

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

      4MB         (4) 1M x 9         NONE

      5MB         (4) 1M x 9     (4) 256K x 9

      8MB         (4) 1M x 9      (4) 1M x 9

      16MB        (4) 4M x 9         NONE

      20MB        (4) 4M x 9      (4) 1M x 9

      32MB        (4) 4M x 9      (4) 4M x 9