INFORMTECH INTERNATIONAL, INC.
IT386SX
|
Processor |
80386SX |
|
Processor Speed |
8/16/20MHz |
|
Chip Set |
Intel |
|
Max. Onboard DRAM |
2MB |
|
Cache |
None |
|
BIOS |
Phoenix |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit external memory card |
|
NPU Options |
80387SX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Turbo LED |
P2 |
External battery |
P8 |
|
Speaker |
P3 |
Keyboard connector |
J9 |
|
Reset switch |
P4 |
32-bit external memory card |
SL1 |
|
Power LED & keylock |
P5 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
Keyboard controller clock speed select 6MHz |
J5 |
pins 1 & 2 closed |
|
Keyboard controller clock speed select 12MHz |
J5 |
pins 2 & 3 closed | |
|
|
Power good signal detect from board |
J8 |
pins 1 & 2 closed |
|
Power good signal detect from power supply |
J8 |
pins 2 & 3 closed | |
|
|
Monitor type select color |
J19 |
Closed |
|
Monitor type select monochrome |
J19 |
Open | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Parity 0 |
Bank 1 |
Parity 1 |
|
1MB |
(8) 44256 |
(4) 41256 |
NONE |
NONE |
|
2MB |
(8) 44256 |
(4) 41256 |
(8) 44256 |
(4) 41256 |
|
CPU SPEED CONFIGURATION | |||||
|
CPU Speed |
Clock speed |
J2 |
J10 |
J13 |
J14 |
|
8MHz |
8MHz |
1 & 2 |
Open |
Open |
Closed |
|
16MHz |
8MHz |
1 & 2 |
1 & 2 |
Open |
Open |
|
16MHz |
12MHz |
2 & 3 |
1 & 2 |
Open |
Open |
|
20MHz |
8MHz |
1 & 2 |
2 & 3 |
Open |
Open |
|
20MHz |
10MHz |
Open |
2 & 3 |
Closed |
Open |
|
20MHz |
12MHz |
2 & 3 |
2 & 3 |
Open |
Open |
|
Note: Pins designated should be in the closed position. | |||||
|
BATTERY TYPE CONFIGURATION | |
|
Type |
J7 |
|
3.6v (without limiting resistor) |
pins 1 & 2 closed |
|
4.5v |
pins 1 & 3 closed |
|
6v (with limiting resistor) |
pins 3 & 4 closed |
|
6v |
Open |