AST RESEARCH, INC.
ADVANTAGE! 4000 SERIES 486 (234068-001)
|
Processor |
80486SX/SL80486SX/ODP486/80486DX/SL80486DX/CX486DX2SL/ AM486DX2SL/80486DX2 |
|
Processor Speed |
25/33/50(internal)/66(internal)MHz |
|
Chip Set |
Unidentified |
|
Max. Onboard DRAM |
36MB |
|
Cache |
None |
|
BIOS |
AST |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
Floppy drive interface, IDE interface, parallel port, serial port, riser slot, power to hard drive, power to floppy drive, power to CD-ROM, data/fax modem cabled |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Speaker |
C20 (2-pin) |
Power to hard drive connector |
1245 |
|
Front panel LED’s |
C20 (4-pin) |
Floppy drive interface |
1250 |
|
Power to CD-ROM power connector |
CD-ROM PWR |
IDE interface |
1251 |
|
Serial port |
CN1 |
Alternate power connector |
1252 |
|
Parallel port |
CN2 |
Front panel LED connector |
1351 |
|
Power to floppy drive connector |
FDD PWR |
Cable to data/fax modem |
1604 |
|
Chassis fan power |
J28 |
Riser slot |
SL1 |
|
Note: The locations of 1245, 1604, J28, FDD PWR & CD-ROM power are unidentified. | |||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
» |
Factory configured - do not alter |
1101 |
N/A |
|
» |
Factory configured - do not alter |
1254 |
N/A |
|
» |
Factory configured - do not alter |
1604 |
N/A |
|
DRAM CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
|
4MB |
4MB |
None |
None |
|
8MB |
4MB |
(1) 1M x 32 |
None |
|
12MB |
4MB |
(1) 1M x 32 |
(1) 1M x 32 |
|
20MB |
4MB |
(1) 4M x 32 |
(1) 4M x 32 |
|
36MB |
4MB |
(1) 4M x 32 |
(1) 4M x 32 |
|
Note: Bank 0 is factory installed and is not configurable. The location is unidentified. | |||
|
CPU TYPE CONFIGURATION | |||||
|
Type |
1201 |
1202 |
1203 |
1204 |
1205 |
|
80486SX |
Open |
2 & 3 |
Open |
Open |
Open |
|
SL80486SX |
Open |
2 & 3 |
Closed |
Closed |
Open |
|
ODP486 |
Open |
1 & 2 |
Open |
Open |
Open |
|
80486DX |
Closed |
1 & 2 |
Open |
Open |
Open |
|
SL80486DX |
Closed |
1 & 2 |
Closed |
Closed |
Open |
|
CX486DX2SL |
Closed |
1 & 2 |
Open |
Open |
Open |
|
AM486DX2SL |
Closed |
1 & 2 |
Open |
Open |
Open |
|
80486DX2 |
Closed |
1 & 2 |
Open |
Open |
Open |
|
Note: Pins designated should be in the closed position. | |||||
|
CPU TYPE CONFIGURATION (CON’T) | |||||
|
Type |
1206 |
1207 |
1208 |
1209 |
1210 |
|
80486SX |
Open |
Open |
Open |
Open |
Open |
|
SL80486SX |
Open |
Closed |
2 & 3 |
Open |
Open |
|
ODP486 |
1 & 2 |
Open |
Open |
Open |
Open |
|
80486DX |
2 & 3 |
Open |
Open |
Open |
Open |
|
SL80486DX |
2 & 3 |
Closed |
2 & 3 |
Open |
Open |
|
CX486DX2SL |
2 & 3 |
Open |
2 & 3 |
Open |
Open |
|
AM486DX2SL |
2 & 3 |
Open |
1 & 2 |
Closed |
Closed |
|
80486DX2 |
2 & 3 |
Open |
Open |
Open |
Open |
|
Note: Pins designated should be in the closed position. | |||||
|
CPU TYPE CONFIGURATION (CON’T) | |||||
|
Type |
1211 |
1212 |
1213 |
1301 |
1302 |
|
80486SX |
Open |
Open |
Open |
1 & 2 |
1 & 2 |
|
SL80486SX |
Open |
Open |
Open |
1 & 2 |
1 & 2 |
|
ODP486 |
Open |
Open |
Open |
1 & 2 |
1 & 2 |
|
80486DX |
Open |
Open |
Open |
1 & 2 |
1 & 2 |
|
SL80486DX |
Open |
Open |
Open |
1 & 2 |
1 & 2 |
|
CX486DX2SL |
Open |
Closed |
Closed |
2 & 3 |
2 & 3 |
|
AM486DX2SL |
Closed |
Open |
Open |
2 & 3 |
2 & 3 |
|
80486DX2 |
Open |
Open |
Open |
1 & 2 |
1 & 2 |
|
Note: Pins designated should be in the closed position. | |||||
|
CPU SPEED CONFIGURATION | |||
|
Speed |
1171 |
1172 |
1173 |
|
25MHz |
Open |
Open |
Closed |
|
33MHz |
Closed |
Closed |
Closed |
|
50iMHz |
Open |
Open |
Closed |
|
66iMHz |
Closed |
Closed |
Closed |
|
CPU VOLTAGE CONFIGURATION | |||||
|
Voltage |
1214 |
1215 |
1216 |
1217 | |
|
3.3v |
Open |
Closed |
Pins 2 & 3 closed |
Closed | |
| » |
5v |
Closed |
Open |
Pins 2 & 3 closed |
Open |