
AST RESEARCH, INC.

CUPID Desktop ISA 386SX/16 (VER. 2)

Processor              80386SX (on external CPU/Memory module)
Processor Speed        16MHz
Chip Set               AST
Max. Onboard DRAM      None (16MB 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]

External CPU/memory module

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Parity check enabled                     E1             closed

      Parity check disabled                    E1              open

  Note:AST CPU/Memory module part number is 202380-001.

                            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

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

      5MB        (1) 1M x 9     (1) 4M x 9       NONE            NONE

      6MB        (1) 1M x 9     (1) 1M x 9    (1) 4M x 9         NONE

      7MB        (1) 1M x 9     (1) 1M x 9    (1) 1M x 9      (1) 4M x 9

      8MB        (1) 4M x 9     (1) 4M x 9       NONE            NONE

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

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

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

     13MB        (1) 1M x 9     (1) 4M x 9    (1) 4M x 9      (1) 4M x 9

     16MB        (1) 4M x 9     (1) 4M x 9    (1) 4M x 9      (1) 4M 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.

