AST RESEARCH, INC.
ADVANTAGE! PRO 4/25S
|
Processor |
80486SX/ODP486/80487SX/ODPR486/80486DX/80486DX2/P24T |
|
Processor Speed |
25/33/50(internal)/66(internal)MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
Cirrus Logic |
|
Maximum Onboard Memory |
64MB |
|
Maximum Video Memory |
1MB |
|
Cache |
64/256KB |
|
BIOS |
Unidentified |
|
Dimensions |
355mm x 304mm |
|
I/O Options |
Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), 8514 video pass through connector, VGA port |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
PS/2 mouse port |
CN1 |
8514 video pass through connector |
J19 |
|
Serial port |
CN2 |
IDE interface |
J22 |
|
Serial port |
CN3 |
Floppy drive interface |
J24 |
|
Parallel port |
CN4 |
Chassis fan power |
J28 |
|
VGA port |
CN5 |
Front panel LEDs |
J29 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
» |
Monitor type select color |
E4 |
Closed |
|
Monitor type select monochrome |
E4 |
Open | |
|
» |
On board video enabled |
E5 |
Closed |
|
On board video disabled |
E5 |
Open | |
|
» |
Password normal operation |
E6 |
Closed |
|
Password clear |
E6 |
Open | |
|
» |
Parallel port IRQ select IRQ7 |
E12 |
Pins 1 & 2 closed |
|
Parallel port IRQ select IRQ5 |
E12 |
Pins 2 & 3 closed | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
(1) 256K x 36 |
None |
None |
None |
|
2MB |
(1) 256K x 36 |
(1) 256K x 36 |
None |
None |
|
3MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
None |
|
4MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
4MB |
(1) 1M x 36 |
None |
None |
None |
|
5MB |
(1) 1M x 36 |
(1) 256K x 36 |
None |
None |
|
6MB |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
None |
|
7MB |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
None |
None |
|
9MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
None |
|
10MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
12MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
None |
|
13MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
|
16MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
16MB |
(1) 4M x 36 |
None |
None |
None |
|
17MB |
(1) 4M x 36 |
(1) 256K x 36 |
None |
None |
|
18MB |
(1) 4M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
None |
|
19MB |
(1) 4M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
20MB |
(1) 4M x 36 |
(1) 1M x 36 |
None |
None |
|
DRAM CONFIGURATION (CON’T) | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
21MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
None |
|
22MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
24MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
None |
|
25MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
|
28MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
None |
None |
|
33MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 256K x 36 |
None |
|
34MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
36MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
None |
|
37MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 256K x 36 |
|
40MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
48MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
None |
|
49MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 256K x 36 |
|
52MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
|
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
CACHE CONFIGURATION | ||
|
Size |
Bank 0 |
TAG |
|
64KB |
(8) 8K x 8 |
(1) 8K x 8 |
|
256KB |
(8) 32K x 8 |
(1) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | |||
|
Size |
E1 |
E2 |
E3 |
|
None |
Open |
Open |
Open |
|
64KB |
Open |
Open |
Open |
|
256KB |
Closed |
Closed |
Closed |
|
VIDEO MEMORY CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
512KB |
(4) 256K x 4 |
None |
|
1MB |
(4) 256K x 4 |
(4) 256K x 4 |
|
Note: Bank 0 is factory installed and is not configurable. | ||
|
CPU SPEED SELECTION | ||
|
Speed |
E9 |
E10 |
|
25MHz |
Closed |
Closed |
|
33MHz |
Open |
Closed |
|
50iMHz |
Closed |
Closed |
|
66iMHz |
Open |
Closed |
|
CPU TYPE SELECTION | ||||||
|
Type |
E11 |
E13 |
E14 |
E15 |
E16 |
E17 |
|
80486SX (PQFP) |
Open |
Open |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
80486SX (PGA) |
Closed |
Open |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
ODP486 |
Closed |
Closed |
1 & 2 |
1 & 2 |
2 & 3 |
1 & 2 |
|
80487SX |
Closed |
Closed |
1 & 2 |
1 & 2 |
2 & 3 |
1 & 2 |
|
ODPR486 |
Closed |
Closed |
2 & 3 |
1 & 2 |
2 & 3 |
1 & 2 |
|
80486DX |
Closed |
Closed |
2 & 3 |
1 & 2 |
2 & 3 |
1 & 2 |
|
80486DX2 |
Closed |
Closed |
2 & 3 |
1 & 2 |
2 & 3 |
1 & 2 |
|
P24T |
Closed |
Closed |
2 & 3 |
2 & 3 |
2 & 3 |
Open |
|
Note: Pins designated should be in the closed position. The location of the PQFP socket is unidentified. | ||||||