INFORMTECH INTERNATIONAL, INC.
IT386SK VER. 1.0
|
Processor |
80386DX |
|
Processor Speed |
25/33/40MHz |
|
Chip Set |
C & T |
|
Max. onboard DRAM |
32MB |
|
Cache |
32/64/128/256KB |
|
BIOS |
Unidentified |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80387DX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Turbo LED |
JP4 |
Speaker |
J24 |
|
External battery |
J10 |
Reset switch |
SW1 |
|
Power LED & keylock |
J23 |
Turbo switch |
SW2 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
Monitor type select monochrome |
JP1 |
Closed |
|
Monitor type select color |
JP1 |
Open | |
|
|
CMOS memory normal operation |
JP2 |
Pins 2 & 3 closed |
|
CMOS memory clear |
JP2 |
Pins 1 & 2 closed | |
|
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 |
|
20MB |
(4) 1M x 9 |
(4) 4M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
CACHE CONFIGURATION | |||||
|
Size |
Bank 0 |
Bank 1 |
TAG (U32) |
TAG (U33) |
TAG (U2) |
|
32KB |
(4) 8K x 8 |
NONE |
(1) 2K x 4 |
(1) 2K x 4 |
(1) 2K x 4 |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(1) 4K x 4 |
(1) 4K x 4 |
(1) 4K x 4 |
|
128KB |
(4) 32K x 8 |
NONE |
(1) 8K x 4 |
(1) 8K x 4 |
(1) 8K x 4 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 16K x 4 |
(1) 16K x 4 |
(1) 16K x 4 |
|
CACHE JUMPER CONFIGURATION | ||||||
|
Size |
JP5 |
JP6 |
JP7 |
JP8 |
JP9 |
JP10 |
|
32KB |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
2 & 3 |
2 & 3 |
|
64KB |
2 & 3 |
1 & 2 |
1 & 2 |
Open |
2 & 3 |
1 & 2 |
|
128KB |
2 & 3 |
1 & 2 |
2 & 3 |
Closed |
2 & 3 |
1 & 2 |
|
256KB |
2 & 3 |
2 & 3 |
2 & 3 |
Closed |
1 & 2 |
1 & 2 |
|
Note: Pins designated should be in the closed position. | ||||||
|
AT BUS SPEED SELECTION | ||
|
CPU speed |
AT bus clock |
JP3 |
|
25MHz |
8.33MHz |
Open |
|
33MHz |
8.33MHz |
Closed |
|
40MHz |
10MHz |
Closed |