AST RESEARCH, INC.
ADVANTAGE+ (CHINA) 486 (202676-F08)
Processor | 80486SX/80486DX/CX486DX2/80486DX2/CX5X86 |
Processor Speed | 25/33/50(internal)/66(internal)MHz |
Chip Set | Unidentified |
Max. Onboard DRAM | 20MB |
Cache | None |
BIOS | Unidentified |
Dimensions | 220mm x 220mm |
I/O Options | Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial port, VGA feature connector, VGA port, riser slot |
NPU Options | None |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
VGA port | CN1 | IDE interface LED | E13 |
Parallel port | CN2 | VGA feature connector | J19 |
Serial port | CN3 | IDE interface | J22 |
PS/2 mouse port | CN4 | Floppy drive interface | J24 |
Reset switch | E11 | Chassis fan power | J28 |
Power LED | E12 | Riser slot | SL1 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Factory configured - do not alter | E1 | Open |
» | Factory configured - do not alter | E2 | Open |
» | On board video enabled | E3 | Closed |
On board video disabled | E3 | Open | |
» | Monitor type select color | E4 | Open |
Monitor type select monochrome | E4 | Closed | |
» | Password enabled | E5 | Open |
Password disabled | E5 | Closed | |
» | Factory configured - do not alter | E8 | Open |
» | Flash BIOS normal operation | E14 | Open |
Flash BIOS force update at boot | E14 | Closed | |
» | Factory configured - do not alter | E16 | Open |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
4MB | 4MB | NONE |
5MB | 4MB | (1) 256K x 32 |
8MB | 4MB | (1) 4M x 32 |
20MB | 4MB | (1) 4M x 32 |
Note: Bank 0 is factory installed and is not configurable. | ||
CPU TYPE CONFIGURATION | ||||
Type | E6 | E7 | E9 | E10 |
80486SX | pins 1 & 2 closed | Open | pins 2 & 3 closed | pins 1 & 2 closed |
80486DX | pins 1 & 2 closed | Closed | pins 2 & 3 closed | pins 2 & 3 closed |
80486DX2 | pins 1 & 2 closed | Closed | pins 2 & 3 closed | pins 2 & 3 closed |
Note: Upgrades are not supported. These settings are for reference only. | ||||