UNIDENTIFIED
NEAT 286
Processor | 80286 |
Processor Speed | 12/16MHz |
Chip Set | C & T NEAT |
Max. Onboard DRAM | 8MB |
Cache | None |
BIOS | AMI |
Dimensions | 330mm x 218mm |
I/O Options | 16-bit external memory card slot |
NPU Options | 80287 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
External battery | J3 | Turbo switch | JP5 |
Speaker | J4 | Turbo LED | LE1 |
Power LED & keylock | J5 | 16-bit external memory card | S1 |
Reset switch | JP4 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | BIOS type select 27256 | JP1 | pins 2 & 3 closed |
BIOS type select 27128 | JP1 | pins 1 & 2 closed | |
» | NPU mode select asynchronous with CPU | JP3, JP6 | pins 2 & 3 closed |
NPU mode select synchronous with CPU | JP3, JP6 | pins 1 & 2 closed | |
» | Monitor type select color | JP7 | Closed |
Monitor type select monochrome | JP7 | Open |
DRAM CONFIGURATION | |||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | DRAM Mode |
512KB | (18) 41256 | NONE | NONE | NONE | 1 |
512KB | NONE | NONE | (2) 256K x 9 | NONE | 2 |
640KB | (18) 41256 | (18) 4164 | NONE | NONE | 1 |
640KB | NONE | NONE | (2) 256K x 9 | (2) 64K x 9 | 2 |
1MB | (18) 41256 | (18) 41256 | NONE | NONE | 1 |
1MB | NONE | NONE | (2) 256K x 9 | (2) 256K x 9 | 2 |
1.5MB | (18) 41256 | (18) 41256 | (2) 256K x 9 | NONE | 1 |
1.5MB | (18) 41256 | NONE | (2) 256K x 9 | (2) 256K x 9 | 2 |
1.64MB | (18) 41256 | (18) 4164 | (2) 256K x 9 | (2) 256K x 9 | 1 |
1.64MB | (18) 41256 | (18) 41256 | (2) 256K x 9 | (2) 64K x 9 | 2 |
2MB | (18) 41256 | (18) 41256 | (2) 256K x 9 | (2) 256K x 9 | 1 or 2 |
2MB | (18) 41100 | NONE | NONE | NONE | 1 |
2MB | NONE | NONE | (2) 1M x 9 | NONE | 2 |
3MB | (18) 41256 | (18) 41256 | (2) 1M x 9 | NONE | 1 |
3MB | (18) 41100 | NONE | (2) 256K x 9 | (2) 256K x 9 | 2 |
4MB | (18) 41100 | (18) 41100 | NONE | NONE | 1 |
4MB | NONE | NONE | (2) 1M x 9 | (2) 1M x 9 | 2 |
4.64MB | (18) 41256 | (18) 4164 | (2) 1M x 9 | (2) 1M x 9 | 1 |
4.64MB | (18) 41100 | (18) 41100 | (2) 256K x 9 | (2) 64K x 9 | 2 |
5MB | (18) 41256 | (18) 41256 | (2) 1M x 9 | (2) 1M x 9 | 1 |
5MB | (18) 41100 | (18) 41100 | (2) 256K x 9 | (2) 256K x 9 | 2 |
6MB | (18) 41100 | (18) 41100 | (2) 1M x 9 | NONE | 1 |
6MB | (18) 41100 | NONE | (2) 1M x 9 | (2) 1M x 9 | 2 |
8MB | (18) 41100 | (18) 41100 | (2) 1M x 9 | (2) 1M x 9 | 1 or 2 |
DRAM MODE JUMPER CONFIGURATION | ||
JP2 | DRAM Mode 1 | DRAM Mode 2 |
pins 1 & 2 | Open | Closed |
pins 2 & 3 | Closed | Open |
pins 3 & 4 | Open | Closed |
pins 4 & 5 | Closed | Open |
pins 5 & 6 | Open | Open |
pins 6 & 7 | Open | Closed |
pins 7 & 8 | Closed | Open |
pins 8 & 9 | Open | Closed |
pins 9 & 10 | Closed | Open |
pins 10 & 11 | Open | Open |
pins 11 & 12 | Open | Closed |
pins 12 & 13 | Closed | Open |
pins 13 & 14 | Open | Closed |
pins 14 & 15 | Closed | Open |
pins 15 & 16 | Open | Open |
pins 16 & 17 | Open | Closed |
pins 17 & 18 | Closed | Open |
pins 18 & 19 | Open | Closed |
pins 19 & 20 | Closed | Open |
pins 20 & 21 | Open | Open |
pins 21 & 22 | Open | Closed |
pins 22 & 23 | Closed | Open |
pins 23 & 24 | Open | Closed |
pins 24 & 25 | Closed | Open |
pins 25 & 26 | Open | Open |
pins 26 & 27 | Open | Closed |
pins 27 & 28 | Closed | Open |
pins 28 & 29 | Open | Closed |
pins 29 & 30 | Closed | Open |