J-MARK COMPUTER CORPORATION
JET-286V
Processor | 80286 |
Processor Speed | 16/20MHz |
Chip Set | VLSI SCAMP |
Max. Onboard DRAM | 16MB |
Cache | None |
BIOS | Award |
Dimensions | 254mm x 220mm |
I/O Options | None |
NPU Options | 80287 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Speaker | J5 | Power LED & keylock | J10 |
External battery | J8 | Turbo LED | J13 |
Turbo switch | J7 | Reset switch | J15 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | NPU mode select synchronous with CPU | JP2 | pins 1 & 2 closed |
NPU mode select synchronous with oscillator installed at OSC1 | JP2 | pins 2 & 3 closed | |
» | Battery type select internal | JP7 | pins 2 & 3 closed |
Battery type select external | JP7 | pins 1 & 2 closed | |
» | Monitor type select color | JP11 | Closed |
Monitor type select monochrome | JP11 | Open |
DRAM CONFIGURATION | ||||||
Size | Bank 0 | P-0 | Bank 1 | P-1 | Bank 2 | Bank 3 |
512KB | (4) 44256 | (2) 41256 | NONE | NONE | NONE | NONE |
512KB | NONE | NONE | NONE | NONE | (2) 256K x 9 | NONE |
1MB | (4) 44256 | (2) 41256 | (4) 44256 | (2) 41256 | NONE | NONE |
1MB | NONE | NONE | NONE | NONE | (2) 256K x 9 | (2) 256K x 9 |
2MB | (4) 44256 | (2) 41256 | (4) 44256 | (2) 41256 | (2) 256K x 9 | (2) 256K x 9 |
2MB | NONE | NONE | NONE | NONE | (1) 1M x 9 | NONE |
4MB | NONE | NONE | NONE | NONE | (1) 1M x 9 | (1) 1M x 9 |
DRAM JUMPER CONFIGURATION | ||
Size | JP3 | JP4 |
512KB | pins 2 & 3 closed | pins 2 & 3 closed |
512KB | pins 1 & 2 closed | pins 1 & 2 closed |
1MB | pins 2 & 3 closed | pins 2 & 3 closed |
1MB | pins 1 & 2 closed | pins 1 & 2 closed |
2MB | pins 2 & 3 closed | pins 2 & 3 closed |
2MB | pins 1 & 2 closed | pins 1 & 2 closed |
4MB | pins 1 & 2 closed | pins 1 & 2 closed |