NEC TECHNOLOGIES, INC.
POWERMATE
386/20
|
Processor |
80386DX |
|
Processor Speed |
20MHz |
|
Chip Set |
ETEQ |
|
Max. Onboard DRAM |
8MB (on system memory card) |
|
Cache |
None |
|
Dimensions |
330.2mm x 218.4mm |
|
BIOS |
Phoenix |
|
I/O Options |
Serial ports (2), parallel port, floppy drive interface, proprietary system memory card, proprietary external memory card slot (on system memory card) |
|
NPU Options |
80287/80387 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Speaker |
P1 |
Floppy drive interface |
P7 |
|
External battery |
P3 |
Serial port 2 |
P10 |
|
Keylock |
P4 |
Turbo LED |
P11 |
|
Parallel port |
P5 |
32-bit external memory card |
S1 |
|
Serial port 1 |
P6 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
| » |
Manufacturer test mode disabled |
11L1 |
Open |
|
Manufacturer test mode enabled |
11L1 |
Closed | |
| » |
Pipeline mode enabled |
14L2 |
pins 1 & 2 closed |
|
Pipeline mode disabled |
14L2 |
pins 2 & 3 closed | |
| » |
Test mode disabled |
19A1 |
Open |
|
Test mode enabled |
19A1 |
Closed | |
| » |
Floppy drive type select single speed |
23G1 |
pins 1 & 2 closed |
|
Floppy drive type select dual speed |
23G1 |
pins 2 & 3 closed | |
| » |
Factory configured - do not alter |
SW1/1 |
Off |
| » |
Factory configured - do not alter |
SW1/2 |
Off |
| » |
Factory configured - do not alter |
SW1/3 |
Off |
| » |
Factory configured - do not alter |
SW1/4 |
On |
| » |
Test mode switch disabled |
SW1/5 |
On |
|
Test mode switch enabled |
SW1/5 |
Off | |
| » |
DRAM speed select 0 wait states |
SW1/6 |
On |
|
DRAM speed select 1 wait state |
SW1/6 |
Off | |
| » |
Factory configured - do not alter |
SW1/9 |
Off |
| » |
Factory configured - do not alter |
SW1/10 |
Off |
| » |
Monitor type select color |
SW2/1 |
On |
|
Monitor type select monochrome |
SW2/1 |
Off | |
| » |
Floppy drive interface address select primary |
SW2/2 |
Off |
|
Floppy drive interface address select secondary |
SW2/2 |
On | |
| » |
Floppy drive interface enabled |
SW2/3 |
On |
|
Floppy drive interface disabled |
SW2/3 |
Off | |
| » |
Serial port 2 select COM2 |
SW2/4 |
On |
|
Serial port 2 disabled |
SW2/4 |
Off | |
| » |
Serial port 1 select COM1 |
SW2/5 |
On |
|
Serial port 1 disabled |
SW2/5 |
Off | |
| » |
System enabled |
SW2/6 |
On |
|
System disabled |
SW2/6 |
Off | |
| » |
NPU enabled |
SW2/7 |
On |
|
NPU disabled |
SW2/7 |
Off | |
| » |
NPU type select 80287 |
SW2/8 |
Off |
|
NPU type select 80387 |
SW2/8 |
On | |
|
NPU CONFIGURATION (80287) | ||||
|
Speed |
19C1 |
19C2 |
19C3 (27F1) | |
|
5.3MHz |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed | |
|
8MHz |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed | |
| » |
10MHz |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
Note:Depending on the revision # of the mainboad, the board will have either jumper 19C3 or 27F1. | ||||
|
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 0 and P-0 are unidentifed. | ||
|
CONNECTIONS | |
|
Purpose |
Location |
|
Proprietary external memory card |
S1 |
|
DRAM CONFIGURATION | |
|
Size |
Bank 0 |
|
8MB |
(72) 44256 |