NEC TECHNOLOGIES, INC.
POWERMATE 468/25E
|
Processor |
80486DX |
|
Processor Speed |
25MHz |
|
Chip Set |
Unidentified |
|
Max. Onboard DRAM |
64MB |
|
Cache |
8/64KB |
|
BIOS |
Unidentified |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit external memory card, floppy drive interface, external cache card, parallel port, PS/2 mouse port, serial ports (2) |
|
NPU Options |
4167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Speaker |
P1 |
Serial/Parallel/IO port connector |
P10 |
|
External battery |
P3 |
Drive power |
P12 |
|
LED panel |
P6 |
32-bit external memory card slot |
SL1 |
|
Floppy drive interface |
P7 |
External cache slot |
SL2 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
|
|
Floppy drive transfer rate 500/250/300/150/125 KB/sec |
2D1 |
pins 1 & 2 closed |
|
Floppy drive transfer rate 500/250/150 KB/sec |
2D1 |
pins 2 & 3 closed | |
|
|
Factory configured - do not alter |
2J1 |
Closed |
|
|
Password enabled |
5J2 |
pins 2 & 3 closed |
|
Password disabled |
5J2 |
pins 1 & 2 closed | |
|
|
A20 Gate select PAL |
5J3 |
pins 1 & 2 closed |
|
A20 Gate select keyboard controller |
5J3 |
pins 2 & 3 closed | |
|
|
Keyboard controller W/R select PAL |
5K3 |
pins 1 & 2 closed |
|
Keyboard controller W/R select XIOWT |
5K3 |
pins 2 & 3 closed | |
|
|
Keyboard controller input select 12MHz |
5K4 |
pins 1 & 2 closed |
|
Keyboard controller input select 8.33MHz |
5K4 |
pins 2 & 3 closed | |
|
STBY signal for RTC select PWREN-0 |
6K3 |
pins 1 & 2 closed | |
|
STBY signal for RTC select PWREN+0 |
6K3 |
pins 2 & 3 closed | |
|
|
ROM self test disabled |
8M2 |
Open |
|
ROM self test enabled |
8M2 |
Closed | |
|
|
Factory configured - do not alter |
9E1 |
pins 2 & 3 closed |
|
|
Factory configured - do not alter |
9E2 |
pins 2 & 3 closed |
|
|
RDY signal from MILK select DMY RDY |
11B2 |
pins 1 & 2 closed |
|
RDY signal from MILK select BRDY |
11B2 |
pins 2 & 3 closed | |
|
|
C6 mode select cache |
18F1 |
Open |
|
C6 mode select normal |
18F1 |
Closed | |
|
|
EISA to host write wait select 1 wait state |
18F2 |
Open |
|
EISA to host write wait select 0 wait state |
18F2 |
Closed | |
|
|
Monitor type select color |
SW1/1 |
On |
|
Monitor type select monochrome |
SW1/1 |
Off | |
|
|
Floppy drive interface address select primary (3F0 - 3F7h) |
SW1/2 |
Off |
|
Floppy drive interface address select secondary (370 - 377h) |
SW1/2 |
On | |
|
|
Internal floppy drive interface enabled |
SW1/3 |
On |
|
Internal floppy drive interface disabled |
SW1/3 |
Off | |
|
|
COM2 enabled |
SW1/4 |
On |
|
COM2 disabled |
SW1/4 |
Off | |
|
|
COM1 enabled |
SW1/5 |
On |
|
COM1 disabled |
SW1/5 |
Off | |
|
|
Parallel port enabled |
SW1/6 |
On |
|
Parallel port disabled |
SW1/6 |
Off | |
|
|
NPU enabled |
SW1/7 |
On |
|
NPU disabled |
SW1/7 |
Off | |
|
|
IRQ 12 select mouse |
SW1/8 |
On |
|
IRQ 12 select other |
SW1/8 |
Off | |
|
|
Base memory select 640KB |
SW1/9 |
Off |
|
Base memory select 512KB |
SW1/9 |
On | |
|
|
Factory configured - do not alter |
SW1/10 |
On |
|
TEST MODE CONFIGURATION | |
|
Test Mode |
TEST |
|
Off |
Out |
|
On |
In |
|
CPU SELF TEST CONFIGURATION | ||
|
CPU testing |
4D1 |
21D1 |
|
Disabled |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
Enabled |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
EISA TO HOST READ WAIT STATE CONFIGURATION | ||
|
Total Wait States |
18F3 (bit 0) |
19F1 (bit 1) |
|
0 |
Closed |
Closed |
|
1 |
Open |
Closed |
|
2 |
Closed |
Open |
|
3 |
Open |
Open |