
AST RESEARCH, INC.

CUPID Desktop ISA 386sx/16 (version 1)

Models 202273-003,202356-001 & 202356-004

Processor               80386SX (on external CPU/Memory module)
Processor Speed         16MHz
Chip Set                AST
Max. Onboard DRAM       None (4MB on external CPU/Memory module)
SRAM Cache              None (16KB on external CPU/Memory module)
BIOS                    AST
Dimensions              330mm x 218mm
I/O Options             32-bit external CPU/Memory module slot

                        32-bit external Memory module slot (2)

                        floppy drive interface, IDE interface

                        parallel port, serial port (2)

                        SMART expansion/16-bit ISA expansion slots (3)
NPU Options             80387SX (on external CPU/Memory module)

[Image]

                                CONNECTIONS

  Purpose             Location     Purpose                     Location

  Serial port 1          CN1       External battery               P8
  (COM1)

  Parallel port          CN2       IDE interface                  P11

  IDE interface LED      J14       SMART expansion/16-bit     S1, S2 & S3
                                   ISA

  Serial port 2          P2        32-bit external                S4
  (COM2)                           CPU/Memory module

  Floppy drive           P3        32-bit external Memory         S5
  interface (A: and                module slot
  B:)

  Third floppy           P4        32-bit external Memory         S6
  drive interface                  module slot

  Front panel            P5        Optional ROM (even)            U12
  switches & LEDs

  Speaker                P6        Optional ROM (odd)             U38

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Password check enabled                   E1            pins 2 & 3
                                                              closed

      Password check disabled                  E1            pins 1 & 2
                                                              closed

     POST select normal operation             E2              open

      POST select continuous loop              E2             closed

     Keyboard select installed                E3              open

      Keyboard select not installed            E3             closed

[Image]

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

     Parity check enabled                    E1              closed

      Parity check disabled                   E1               open

  Note:AST CPU/Memory module part number is 202337-001 or 202337-002.

                            DRAM CONFIGURATION

     Size          Bank 0         Bank 1        Bank 2          Bank 3

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

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

      3MB        (1) 1M x 9     (1) 1M x 9    (1) 1M x 9         NONE

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

  Notes:16KB of SRAM Cache is on the CPU/Memory module. 128KB of DRAM is
  reserved for System

  and VGA BIOS shadowing and cannot be disabled. Up to two of the
  following memory boards

  may be installed in addition to the CPU/Memory module: AST part numbers
  202275-001,

  202275-004, 202275-006, 202387-001, or 202387-005.

