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  |