AUSTIN COMPUTER SYSTEMS
486/DX2 33i/50i(TC-4)
Processor | 80486DX/80486DX2 |
Processor Speed | 25/33/50(internal)/66(internal)MHz |
Chip Set | C & T |
Max. Onboard DRAM | 32MB |
Cache | 64/128/256KB |
BIOS | AMI |
Dimensions | 330mm x 218mm |
I/O Options | 32-bit external memory card slot |
NPU Options | 4167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Speaker | JP7 | Turbo LED | JP10 |
Power LED & keylock | JP8 | Turbo switch | JP11 |
Reset switch | JP9 | External battery | JP2 |
USER CONFIGURABLE SETTINGS | ||||
Function | Jumper | Position | ||
» | Factory configured - do not alter | J3 | N/A | |
» | Factory configured - do not alter | J4 | N/A | |
» | CMOS memory normal operation | JP3 | pins 1 & 2 closed | |
CMOS memory clear | JP3 | pins 2 & 3 closed | ||
» | Monitor type select color | JP4 | pins 1 & 2 closed | |
Monitor type select monochrome | JP4 | pins 2 & 3 closed | ||
» | Factory configured - do not alter | JP5 | N/A | |
» | DRAM type select identical | JP6 | pins 1 & 2 closed | |
DRAM type select mixed | JP6 | pins 2 & 3 closed | ||
» | Factory configured - do not alter | JP12 | N/A | |
» | Factory configured - do not alter | JP13 | N/A | |
» | Factory configured - do not alter | JP15 | N/A | |
» | Factory configured - do not alter | JP16 | N/A | |
Note : The location of J3 is unidentified. |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
1MB | (4) 256K x 9 | NONE |
2MB | (4) 256K x 9 | (4) 256K x 9 |
4MB | (4) 1M x 9 | NONE |
5MB | (4) 256K x 9 | (4) 1M x 9 |
8MB | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE |
32MB | (4) 4M x 9 | (4) 4M x 9 |
CACHE CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | TAG 1 | TAG 2 |
64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 | (1) 8K x 8 |
128KB | (4) 32K x 8 | NONE | (1) 32K x 8 | NONE |
256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 | (1) 32K x 8 |
CACHE JUMPER CONFIGURATION | |||||||||||
Size | SR1 | SR2 | SR3 | SR4 | SR5 | SR6 | SR7 | SR8 | SR9 | SR10 | SR11 |
64KB | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 |
128KB | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 1 & 2 | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 |
256KB | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
Note: Pins designated should be in the closed position. |
BATTERY CONFIGURATION | ||
Type | JP1 | JP2 |
Internal | Closed | Open |
External | Open | Closed |