AST RESEARCH, INC.
ADVANTAGE! (94) 486 (202601-XXX)
|
Processor |
80486SX/80487SX/80486DX/ODP486SX/80486DX2/Pentium Overdrive |
|
Processor Speed |
25/33/50(internal)/66(internal)MHz |
|
Chip Set |
AST |
|
Max. Onboard DRAM |
32MB |
|
Cache |
None |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
PS/2 mouse port, floppy drive interface, IDE interface, parallel port, serial ports (2), VGA port |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
PS/2 mouse port |
CN1 |
Power LED & keylock (not used) |
E12 |
|
Serial port 2 |
CN2 |
IDE interface LED (not used) |
E13 |
|
Serial port 1 |
CN3 |
IDE interface |
J22 |
|
Parallel port |
CN4 |
Floppy drive interface |
J24 |
|
VGA port |
CN5 |
Chassis fan power |
J28 |
|
Reset switch (not used) |
E11 |
Riser card |
SL1 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
Parallel port IRQ select IRQ7 |
E1 |
pins 1 & 2 closed |
|
Parallel port IRQ select IRQ5 |
E1 |
pins 2 & 3 closed | |
|
|
On board video enabled |
E3 |
Closed |
|
On board video disabled |
E3 |
Open | |
|
|
Monitor type select color |
E4 |
Open |
|
Monitor type select monochrome |
E4 |
Closed | |
|
|
CMOS memory normal operation |
E5 |
Open |
|
CMOS memory clear |
E5 |
Closed | |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
4MB |
(1) 512K x 36 |
(1) 512K x 36 |
|
4MB |
(1) 1M x 36 |
NONE |
|
5MB |
(1) 1M x 36 |
(1) 256K x 36 |
|
6MB |
(1) 1M x 36 |
(1) 512K x 36 |
|
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
|
9MB |
(1) 2M x 36 |
(1) 256K x 36 |
|
10MB |
(1) 2M x 36 |
(1) 512K x 36 |
|
12MB |
(1) 2M x 36 |
(1) 1M x 36 |
|
16MB |
(1) 2M x 36 |
(1) 2M x 36 |
|
17MB |
(1) 4M x 36 |
(1) 256K x 36 |
|
18MB |
(1) 4M x 36 |
(1) 512K x 36 |
|
20MB |
(1) 4M x 36 |
(1) 1M x 36 |
|
24MB |
(1) 4M x 36 |
(1) 2M x 36 |
|
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
|
CPU SPEED CONFIGURATION | |
|
Speed |
E2 |
|
25MHz |
Closed |
|
33MHz |
Open |
|
50iMHz |
Closed |
|
66IMHz |
Open |
|
CPU TYPE CONFIGURATION | |||||
|
Type |
E6 |
E7 |
E8 |
E9 |
E10 |
|
80486SX (PQFP) |
1 & 2 |
Closed |
2 & 3 |
1 & 2 |
2 & 3 |
|
80486SX (PGA) |
1 & 2 |
Open |
1 & 2 |
2 & 3 |
1 & 2 |
|
80487SX, ODP |
1 & 2 |
Closed |
2 & 3 |
1 & 2 |
2 & 3 |
|
80486DX,DX2,ODPR |
1 & 2 |
Closed |
1 & 2 |
2 & 3 |
2 & 3 |
|
Pentium Overdrive |
2 & 3 |
Closed |
2 & 3 |
1 & 2 |
2 & 3 |
|
Note: Pins designated should be in the closed position. | |||||