NEC TECHNOLOGIES, INC.
POWERMATE
386/25
|
Processor |
80386DX |
|
Processor Speed |
25MHz |
|
Chip Set |
ETEQ |
|
Max. Onboard DRAM |
8MB (on system memory card) |
|
Cache |
None |
|
BIOS |
Phoenix |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
Proprietary Serial/Parallel card, serial ports (2, on serial/parallel card), parallel port (on serial/parallel card), floppy drive interface, proprietary system memory card, proprietary external memory card slot (on system memory card) |
|
NPU Options |
80387/3167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Speaker |
P1 |
Serial port 2 |
P10 |
|
Power LED & Keylock |
P4 |
Turbo LED |
P11 |
|
Parallel port |
P5 |
Proprietary serial/parallel card |
P12 |
|
Serial port 1 |
P6 |
Proprietary system memory card |
S1 |
|
Floppy drive interface |
P7 | ||
|
Note:Serial ports P6 & P10 and parallel port P5 are located on the proprietary serial/parallel card. Diagrams for the proprietary serial/parallel card are unavailable. | |||
|
USER CONFIGURABLE SETTINGS | ||||
|
Function |
Jumper/Switch |
Position | ||
| » |
NPU type select 3167 |
5L1/13G2 SW1/switch 7 |
pins 2 & 3 closed open | |
|
NPU type select 80387 |
5L1/13G2 SW1/switch 7 |
pins 1 & 2 closed closed | ||
| » |
Pipeline mode disabled |
8E2/13G1 |
pins 2 & 3 closed | |
|
Pipeline mode enabled |
8E2/13G1 |
pins 1 & 2 closed | ||
| » |
Test mode disabled |
13A1 |
Open | |
|
Test mode enabled |
13A1 |
Closed | ||
| » |
Keyboard controller test mode disabled |
20B2 |
Open | |
|
Keyboard controller test mode enabled |
20B2 |
Closed | ||
| » |
Monitor type select color |
SW1/1 |
On | |
|
Monitor type select monochrome |
SW1/1 |
Off | ||
| » |
Floppy drive interface address select primary |
SW1/2 |
Off | |
|
Floppy drive interface address select secondary |
SW1/2 |
On | ||
| » |
Floppy drive interface enabled |
SW1/3 |
On | |
|
Floppy drive interface disabled |
SW1/3 |
Off | ||
| » |
Serial port 2 select COM2 |
SW1/4 |
On | |
|
Serial port 2 disabled |
SW1/4 |
Off | ||
| » |
Serial port 1 select COM1 |
SW1/5 |
On | |
|
Serial port 1 disabled |
SW1/5 |
Off | ||
| » |
System enabled |
SW1/6 |
On | |
|
System disabled |
SW1/6 |
Off | ||
| » |
Factory configured - do not alter |
SW1/8 |
Off | |
| » |
Factory configured - do not alter |
SW1/9 |
Off | |
| » |
Factory configured - do not alter |
SW1/10 |
Off | |
|
Notes:Serial ports P6 & P10 and parallel port P5 are located on the proprietary serial/parallel card. Depending on the revision number of the mainboard, the board will have either jumpers 5L1 and 8E2 or 13G1 and 13G2, but not both sets. | ||||
|
NPU TYPE CONFIGURATION | |||
|
Type |
5L1 |
13G2 |
SW1/7 |
|
3167 |
pins 2 & 3 closed |
pins 2 & 3 closed |
Off |
|
80387 |
pins 1 & 2 closed |
pins 1 & 2 closed |
On |
|
CONNECTIONS | |
|
Purpose |
Location |
|
Proprietary external memory card |
S1 |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
P-0 |
|
2MB |
(16) 44256 |
(8) 41256 |
|
Note:The locations of Bank 0and P-0 are unidentified. | ||
SYSTEM MEMORY CARD (G8EGX)
|
CONNECTIONS | |
|
Purpose |
Location |
|
Proprietary external memory card |
S1 |
|
DRAM CONFIGURATION | |
|
Size |
Bank 0 |
|
8MB |
(72) 44256 |