LEADING EDGE PRODUCTS, INC.
MODEL D3/SX (VERSION 2)
Processor |
80386SX |
Processor Speed |
16MHz |
Chip Set |
Zymos |
Max. onboard DRAM |
4MB |
SRAM Cache |
None |
BIOS |
Leading Edge |
Dimensions |
325mm x 308mm |
I/O Options |
Floppy drive interface, mouse port, parallel port, serial ports (2) |
NPU Options |
80387SX |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Mouse port |
CN1 |
Parallel port |
CN4 |
Serial port 1 (25 pin) |
CN2 |
Floppy drive interface |
CN5 |
Serial port 2 (9 pin) |
CN3 |
USER CONFIGURABLE SETTINGS | |||
Function |
JUMPER |
Position | |
» |
Monitor type select color |
J5 |
pins 1 & 2 closed |
Monitor type select monochrome |
J5 |
pins 2 & 3 closed | |
» |
Floppy drive interface enabled |
J9 |
pins 2 & 3 closed |
Floppy drive interface disabled |
J9 |
pins 1 & 2 closed | |
» |
Mouse port enabled |
J15 |
pins 1 & 2 closed |
Mouse port disabled |
J15 |
pins 2 & 3 closed |
DRAM CONFIGURATION | |||||
Size |
Bank 0 |
Bank 1 |
J6 |
J7 |
J8 |
512KB |
(2) 256K x 9 |
None |
pins 2 & 3 |
pins 2 & 3 |
pins 2 & 3 |
1MB |
(2) 256K x 9 |
(2) 256K x 9 |
pins 2 & 3 |
pins 1 & 2 |
pins 2 & 3 |
2MB |
(2) 1M x 9 |
NONE |
pins 2 & 3 |
pins 2 & 3 |
pins 1 & 2 |
4MB |
(2) 1M x 9 |
(2) 1M x 9 |
pins 2 & 3 |
pins 1 & 2 |
pins 1 & 2 |
Note:Pins designated should be in the closed position. |
PARALLEL PORT CONFIGURATION | |||
IRQ |
ADDRESS |
J10 |
J11 |
5 |
378h |
pins 1 & 2 closed |
pins 2 & 3 closed |
7 |
278h |
pins 2 & 3 closed |
pins 1 & 2 closed |
5 |
278h |
pins 1 & 2 closed |
pins 1 & 2 closed |
7 |
378h |
pins 2 & 3 closed |
pins 2 & 3 closed |
Disabled |
Disabled |
Open |
Open |
SERIAL PORT CONFIGURATION | |||
Port 1 (25 pine) |
Port 2 (9 pin) |
J12 |
J13 |
COM1 |
COM2 |
pins 2 & 3 closed |
pins 2 & 3 closed |
COM1 |
COM4 |
pins 2 & 3 closed |
pins 1 & 2 closed |
COM1 |
Disabled |
pins 2 & 3 closed |
Open |
COM3 |
COM2 |
pins 1 & 2 closed |
pins 2 & 3 closed |
Disabled |
COM2 |
Open |
pins 2 & 3 closed |
COM3 |
COM4 |
pins 1 & 2 closed |
pins 1 & 2 closed |
Disabled |
COM4 |
Open |
pins 1 & 2 closed |
Disabled |
Disabled |
Open |
Open |
MOUSE CONFIGURATION | ||
IRQ |
J16 - J18 |
J19 |
3 |
Open |
Open |
4 |
Open |
Open |
5 |
Open |
Open |
9 |
Open |
Closed |