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 |