AST RESEARCH, INC.
CUPID Tower ISA 486/25 and 486/33 (version 1) Model 202352-001
|
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 |
355mm x 266mm |
|
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) |
|
NPU Options |
4167 (on external CPU/Memory module) |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
IDE interface |
P1 |
Serial port 1 (COM1) |
P11 |
|
Parallel port |
P2 |
Serial port 2 (COM2) |
P12 |
|
Third floppy drive interface |
P3 |
IDE interface LED |
P13 |
|
Floppy drive interface (A: and B:) |
P4 |
32-bit external CPU/Memory module |
S1 |
|
Front panel switches & LEDs |
P5 |
32-bit external Memory module slots |
S2 & S3 |
|
Speaker |
P6 |
Optional ROM (even) |
U4 |
|
External battery |
P8 |
Optional ROM (odd) |
U5 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Switch SW1 |
Position | |
|
Factory configured - do not alter |
switch 1 |
open | |
|
Password check enabled |
switch 2 |
closed | |
|
Password check disabled |
switch 2 |
open | |
|
Factory configured - do not alter |
switch 3 |
open | |
|
Keyboard select installed |
switch 4 |
open | |
|
Keyboard select not installed |
switch 4 |
closed | |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Parity check enabled |
E1 |
closed | |
|
Parity check disabled |
E1 |
open | |
|
Note:AST CPU/Memory module part number is 202361-002, 202361-005, or 202361-006 for 25MHz systems or 202361-004 or 202361-007 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. | ||