NEC TECHNOLOGIES, INC.
PowerMate Image 486SX/25i, 486/33i
Processor | 80486SX/80486DX |
Processor Speed | 25/33MHz |
Chip Set | OPTI |
Max. Onboard DRAM | 36MB |
Cache | 64/128KB (on optional cache module) |
BIOS | NEC (Flash EEPROM) |
Dimensions | 330mm x 218mm |
I/O Options | Bus mouse port, floppy drive interface, headphone jack, IDE interface, microphone jack, parallel port, proprietary cache module socket, proprietary VGA feature card socket, serial ports (2), VGA port |
NPU Options | 4167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Proprietary cache module | CA1 | External battery | JP8 |
Floppy drive interface | J1 | Parallel port | P1 |
IDE interface | J2 | Serial port 1 | P2 |
Proprietary VGA feature card | J3 | VGA port | P4 |
Drive power | J6 | Serial port 2 (optional) | P5 |
IDE interface LED (not used) | JP2 | Indicator panel assembly | P6 |
Speaker (not used) | JP6 | Riser Card | R1 |
Note: The bus mouse port, headphone jack, and microphone jack are connected to the main board via the indicator panel assembly connector (P6). |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper/Switch | Position | |
» | Parallel port (P1) interrupt select IRQ7 | JP7 | pins 2 & 3 closed |
| Parallel port (P1) interrupt select IRQ5 | JP7 | pins 1 & 2 closed |
» |
| JP9 | pins 1 & 2 closed |
| CPU type select 80486DX/33MHz | JP9 | pins 2 & 3 closed |
» | On board video enabled | SW1/1 | Off |
| On board video disabled | SW1/1 | On |
» | Floppy drive interface enabled | SW1/2 | Off |
| Floppy drive interface disabled | SW1/2 | On |
» | Password enabled | SW1/3 | Off |
| Password disabled | SW1/3 | On |
» | BIOS flash reprogramming enabled | SW1/4 | Off |
| BIOS flash reprogramming disabled | SW1/4 | On |
» | Factory configured - do not alter | SW2 | Open |
DRAM CONFIGURATION | |||
Size | Bank 0 | Bank 1 | Bank 2 |
4MB | 4MB | NONE | NONE |
8MB | 4MB | (4) 1M x 9 | NONE |
12MB | 4MB | (4) 1M x 9 | (4) 1M x 9 |
20MB | 4MB | (4) 4M x 9 | NONE |
24MB | 4MB | (4) 1M x 9 | (4) 4M x 9 |
36MB | 4MB | (4) 4M x 9 | (4) 4M x 9 |
Note: Bank 0 is factory installed and is not configurable. The location of bank 0 is unidentified. |