UNIDENTIFIED
NKC-486P
Processor | 80486SX/80487SX/80486DX |
Processor Speed | 16/20/33/50MHz |
Chip Set | OPTI |
Max. Onboard DRAM | 64MB |
Cache | 64/128/256/512KB |
BIOS | AMI |
Dimensions | 330mm x 218mm |
I/O Options | None |
NPU Options | 4167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
External battery | JP1 | Turbo switch | JP16 |
Power LED & keylock | JP9 | Turbo LED | JP17 |
Reset switch | JP12 | Speaker | JP18 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Battery type select internal | JP1 | pins 2 & 3 closed |
Battery type select external | JP1 | Closed | |
» | CMOS memory normal operation | JP2 | pins 1 & 2 closed |
CMOS memory clear | JP2 | pins 2 & 3 closed | |
» | Monitor type select color | JP3 | Closed |
Monitor type select monochrome | JP3 | Open | |
» | I/O bus speed select ATCLK/4 | JP10 | Closed |
I/O bus speed select ATCLK/6 | JP10 | Open | |
» | CPU speed select OSC | JP11 | pins 1 & 2 closed |
CPU speed select OSC/2 | JP11 | pins 2 & 3 closed |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
1MB | (4) 256K x 9 | NONE | NONE | NONE |
2MB | (4) 256K x 9 | (4) 256K x 9 | NONE | NONE |
4MB | (4) 1M x 9 | NONE | NONE | NONE |
5MB | (4) 256K x 9 | (4) 1M x 9 | NONE | NONE |
6MB | (4) 256K x 9 | (4) 256K x 9 | (4) 1M x 9 | NONE |
8MB | (4) 1M x 9 | (4) 1M x 9 | NONE | NONE |
9MB | (4) 256K x 9 | (4) 1M x 9 | (4) 1M x 9 | NONE |
10MB | (4) 256K x 9 | (4) 256K x 9 | (4) 1M x 9 | (4) 1M x 9 |
12MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | NONE |
13MB | (4) 256K x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE | NONE | NONE |
20MB | (4) 1M x 9 | (4) 4M x 9 | NONE | NONE |
20MB | (4) 4M x 9 | (4) 1M x 9 | NONE | NONE |
24MB | (4) 1M x 9 | (4) 1M x 9 | (4) 4M x 9 | NONE |
24MB | (4) 1M x 9 | (4) 4M x 9 | (4) 1M x 9 | NONE |
24MB | (4) 4M x 9 | (4) 1M x 9 | (4) 1M x 9 | NONE |
28MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 4M x 9 |
28MB | (4) 1M x 9 | (4) 4M x 9 | (4) 1M x 9 | (4) 1M x 9 |
28MB | (4) 4M x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
32MB | (4) 4M x 9 | (4) 4M x 9 | NONE | NONE |
36MB | (4) 1M x 9 | (4) 4M x 9 | (4) 4M x 9 | NONE |
36MB | (4) 4M x 9 | (4) 1M x 9 | (4) 4M x 9 | NONE |
36MB | (4) 4M x 9 | (4) 4M x 9 | (4) 1M x 9 | NONE |
40MB | (4) 1M x 9 | (4) 1M x 9 | (4) 4M x 9 | (4) 4M x 9 |
40MB | (4) 1M x 9 | (4) 4M x 9 | (4) 4M x 9 | (4) 1M x 9 |
40MB | (4) 4M x 9 | (4) 1M x 9 | (4) 4M x 9 | (4) 1M x 9 |
40MB | (4) 4M x 9 | (4) 4M x 9 | (4) 1M x 9 | (4) 1M x 9 |
48MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | NONE |
DRAM CONFIGURATION (CON’T) | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
52MB | (4) 1M x 9 | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 |
52MB | (4) 4M x 9 | (4) 1M x 9 | (4) 4M x 9 | (4) 4M x 9 |
52MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | (4) 1M x 9 |
64MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 |
CACHE CONFIGURATION | |||
Size | Bank 0 | Bank 1 | TAG |
64KB | (8) 8K x 8 | NONE | (1) 8K x 8 |
128KB | (8) 8K x 8 | (8) 8K x 8 | (1) 8K x 8 |
256KB | (8) 32K x 8 | NONE | (1) 32K x 8 |
512KB | (8) 32K x 8 | (8) 32K x 8 | (1) 32K x 8 |
CACHE JUMPER CONFIGURATION | |||||
Size | JP4 | JP5 | JP6 | JP7 | JP8 |
64KB | pins 2 & 3 closed | Open | Open | Open | Open |
128KB | pins 2 & 3 closed | Closed | Closed | Open | Open |
256KB | pins 2 & 3 closed | Closed | Closed | Closed | Open |
512KB | pins 1 & 2 closed | Closed | Closed | Closed | Closed |
CPU TYPE CONFIGURATION | |||
Type | JP13 | JP14 | JP15 |
80486SX | Open | pins 1 & 2 closed | Open |
80487SX | pins 1 & 2 closed | pins 2 & 3 closed | Closed |
80486DX | pins 2 & 3 closed | pins 2 & 3 closed | Closed |