U.S. INTEGRATED TECHNOLOGIES, INC.
486 25/33
|
Processor |
80486DX |
|
Processor Speed |
25/33/40MHz |
|
Chip Set |
Unidentified |
|
Max. Onboard DRAM |
32MB |
|
Cache |
64/256KB |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit external memory card slot |
|
NPU Options |
4167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Speaker |
JP8 |
Reset switch |
SW1 |
|
External battery |
JP10 |
32-bit external memory card |
S2 |
|
Power LED & keylock |
JP11 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Monitor type select color |
JP1 |
Closed | |
|
Monitor type select monochrome |
JP1 |
Open | |
|
Speaker type select internal |
JP7 |
pins 1 & 2 closed | |
|
Speaker type select external |
JP7 |
pins 2 & 3 closed | |
|
Battery type select internal |
JP9 |
pins 1 & 2 closed | |
|
Battery type select external |
JP9 |
pins 2 & 3 closed | |
|
Factory configured - do not alter |
JP31 |
Closed | |
|
Factory configured - do not alter |
JP32 |
Open | |
|
Factory configured - do not alter |
JP33 |
Closed | |
|
Factory configured - do not alter |
JP34 |
Closed | |
|
Factory configured - do not alter |
JP35 |
Closed | |
|
Factory configured - do not alter |
JP36 |
Closed | |
|
Factory configured - do not alter |
JP37 |
Closed | |
|
Factory configured - do not alter |
JP39 |
pins 2 & 3 closed | |
|
Factory configured - do not alter |
JP40 |
pins 1 & 2 closed | |
|
Factory configured - do not alter |
JP41 |
pins 2 & 3 closed | |
|
Factory configured - do not alter |
JP45 |
pins 1 & 2, 3 & 4 closed | |
|
Factory configured - do not alter |
JP46 |
pins 1 & 2, 3 & 4 closed | |
|
Factory configured - do not alter |
JP48 |
Open | |
|
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) 1 M x 9 |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
|
17MB |
(4) 256K x 9 |
(4) 4M x 9 |
|
20MB |
(4) 1M x 9 |
(4) 4M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
CACHE CONFIGURATION | ||
|
Size |
Bank 0 |
TAG |
|
64KB |
(8) 8K x 8 |
(2) 16K x 4 |
|
256KB |
(8) 32K x 8 |
(2) 16K x 4 |
|
CACHE JUMPER CONFIGURATION | |||||
|
Size |
JP4 |
JP5 |
JP6 |
JP20 |
JP21 |
|
64KB |
Open |
2 & 3 |
2 & 3 |
Open |
Open |
|
256KB |
Closed |
1 & 2 |
1 & 2 |
Closed |
Closed |
|
Note: Pins designated should be in the closed position. | |||||
|
CPU SPEED CONFIGURATION | ||||
|
Speed |
S1/3 |
S1/4 |
S1/5 |
S1/6 |
|
25MHz |
On |
Off |
Off |
Off |
|
33MHz |
On |
Off |
Open |
On |
|
40MHz |
Off |
On |
Off |
On |