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 |