AUSTIN COMPUTER SYSTEMS
486/SLC 25
Processor | 80386SX/CX486SLC |
Processor Speed | 25MHz |
Chip Set | C & T |
Max. Onboard DRAM | 16MB |
Cache | None |
BIOS | AMI |
Dimensions | 220mm x 220mm |
I/O Options | 16-bit external cache memory card slot |
NPU Options | 80387SX |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Speaker | J1 | External battery | J13 |
Turbo switch | J7 | Reset switch | J14 |
Turbo LED | J8 | 16-bit external cache memory card | S1 |
Power LED & keylock | J10 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | CPU speed select forced high | J7 | pins 1 & 2 closed |
» | Monitor type select color | J12 | pins 1 & 2 closed |
Monitor type select monochrome | J12 | pins 2 & 3 closed | |
» | CMOS memory normal operation | J15 | pins 2 & 3 closed |
CMOS memory clear | J15 | pins 1 & 2 closed | |
» | Cache card absent | W1 | pins 2 & 3 closed |
Cache card present | W1 | pins 1 & 2 closed |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
1MB | (2) 256K x 9 | (2) 256K x 9 | NONE | NONE |
2MB | (2) 256K x 9 | (2) 256K x 9 | (2) 256K x 9 | (2) 256K x 9 |
2MB | (2) 1M x 9 | NONE | NONE | NONE |
3MB | (2) 256K x 9 | (2) 256K x 9 | (2) 1M x 9 | NONE |
4MB | (2) 1M x 9 | (2) 1M x 9 | NONE | NONE |
5MB | (2) 256K x 9 | (2) 256K x 9 | (2) 1M x 9 | (2) 1M x 9 |
6MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | NONE |
8MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 |
9MB | (2) 256K x 9 | (2) 256K x 9 | (2) 4M x 9 | NONE |
10MB | (2) 1M x 9 | (2) 4M x 9 | NONE | NONE |
12MB | (2) 1M x 9 | (2) 1M x 9 | (2) 4M x 9 | NONE |
16MB | (2) 4M x 9 | (2) 4M x 9 | NONE | NONE |
CACHE JUMPER CONFIGURATION FOR CACHE CARD | |||||
Size | J2 | J3 | J4 | J5 | J6 |
64KB/2-Way Set Associative | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
64KB/Directly Mapped | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
Note: Pins designated should be in the closed position. |