AST RESEARCH, INC.

CUPID Desktop EISA 486/25 & 486/33 (VER. 2)

Model 202351-00X

Processor               80486DX (on external CPU/Memory module)
Processor Speed         25/33MHz
Chip Set                AST
Max. Onboard DRAM       None (16MB on external CPU/Memory module)
SRAM Cache              None
BIOS                    AST
Dimensions              330mm x 218mm
I/O Options             32-bit external CPU/Memory module slot, 32-bit
                        external Memory module slot (2), bus mouse port,
                        floppy drive interface, IDE interface, parallel
                        port, serial port (2)
NPU Options             4167 (on external CPU/Memory module)

[Image]

                                CONNECTIONS

  Purpose                Location     Purpose                  Location

  Serial port 1            CN1        Bus mouse port             J30
  (COM1)

  Parallel port            CN2        Front panel switches       P11
                                      & LEDs

  EISA slave slot           ES        External battery           P14

  Speaker                  J12        Serial port 2 (COM2)       P18

  Floppy drive             J20        32-bit external             S1
  interface (A: and                   CPU/Memory module
  B:)

  Third floppy drive       J21        32-bit external          S2 & S3
  interface                           Memory module slots

  IDE interface            J22        Optional ROM (even)        U32

  IDE interface LED        J23        Optional ROM (odd)         U33

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Factory configured - do not alter        E1              open

  »   Factory configured - do not alter        E2             closed

  »   Factory configured - do not alter        E3              open

  »   Password check enabled                   E4            pins 2 & 3
                                                              closed

      Password check disabled                  E4            pins 1 & 2
                                                              closed

  »   Factory configured - do not alter        E5              open

  »   Factory configured - do not alter        E6             closed

  »   Factory configured - do not alter        E7            pins 2 & 3
                                                              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 202397-001, 202397-002,
  202397-005, 202397-008,

  or 202397-009 for 25MHz systems or 202397-003, 202397-004, 202397-006,
  202397-007,

  202397-010, or 202397-011 for 33MHz systems.

                            DRAM CONFIGURATION

          Size                    Bank 0                   Bank 1

           2MB                  (2) 1M x 9                  NONE

           4MB                  (2) 1M x 9               (2) 1M x 9

           8MB                  (2) 4M x 9                  NONE

          10MB                  (2) 1M x 9               (2) 4M x 9

          16MB                  (2) 4M x 9               (2) 4M x 9

  Notes: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 202275-002, 202275-004, 202275-006,
  202387-001,

  or 202387-005.