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 |