AST RESEARCH, INC.
Mid-Size Bravo 486/25 (Model 202385-001)
|
Processor |
80486DX |
|
Processor Speed |
25MHz |
|
Chip Set |
AST |
|
Max. Onboard DRAM |
16MB |
|
SRAM Cache |
None |
|
BIOS |
AST |
|
Dimensions |
340mm x 245mm |
|
I/O Options |
Bus mouse port, floppy drive interface, IDE interface, parallel port, serial port (2), SVGA port |
|
NPU Options |
4167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
SVGA port |
CN1 |
Floppy drive interface |
J24 |
|
Bus mouse port |
CN2 |
External battery |
J26 |
|
Serial port 1 (COM1) |
CN3 |
Speaker |
J27 |
|
Parallel port |
CN4 |
Fan power |
J28 |
|
VGA pass-through |
J19 |
Front panel |
J29 |
|
Serial port 2 (COM2) |
J20 |
IDE interface LED |
J40 |
|
IDE interface |
J22 |
Front panel switches & LEDs |
P29 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
|
Parity check enabled |
E1 |
closed | |
|
Parity check disabled |
E1 |
open | |
|
Factory configured - do not alter |
E2 |
pins 2 & 3 closed | |
|
Factory configured - do not alter |
E3 |
pins 2 & 3 closed | |
|
VGA port enabled |
SW1/switch 1 |
closed | |
|
VGA port disabled |
SW1/switch 1 |
open | |
|
Password check enabled |
SW1/switch 2 |
open | |
|
Password check disabled |
SW1/switch 2 |
closed | |
|
Factory configured - do not alter |
SW1/switch 3 |
open | |
|
Factory configured - do not alter |
SW1/switch 4 |
open | |
|
Factory configured - do not alter |
SW1/switch 5 |
closed | |
|
Factory configured - do not alter |
SW1/switch 6 |
closed | |
|
Monitor type select PS/2 style |
SW1/switch 7 |
closed | |
|
Monitor type select AT style |
SW1/switch 7 |
open | |
|
Monitor type select VGA or fixed-frequency |
SW1/switch 8 |
open | |
|
Monitor type select multi-frequency |
SW1/switch 8 |
closed | |
|
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) 4M x 9 |
(2) 1M x 9 |
|
16MB |
(2) 4M x 9 |
(2) 4M x 9 |