ADVANTAGE! 4000 SERIES 486 (234068-001) Motherboard Settings and Configuration
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 |
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