UNIDENTIFIED
NEXT-286
|
Processor |
80286 |
|
Processor Speed |
12/16/20MHz |
|
Chip Set |
Protech |
|
Max. Onboard DRAM |
1MB |
|
Cache |
None |
|
BIOS |
Unidentified |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80287 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Speaker |
J10 (pins 1 & 2) |
Reset switch |
J15 |
|
Power LED |
J10 (pins 3 & 4) |
Reset switch |
J16 |
|
Turbo switch |
J11 |
Turbo LED |
LED |
|
Keylock |
J14 | ||
|
Note: The location of jumper LED is unidentified. | |||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
|
|
BIOS type select 27128 |
J9 |
pins 1 & 2 closed |
|
BIOS type select 27256 |
J9 |
pins 2 & 3 closed | |
|
|
I/O wait state select 0 wait states |
J12 |
Closed |
|
I/O wait state select 1 wait state |
J12 |
Open | |
|
|
Factory configured - do not alter |
J13 |
Closed |
|
|
Factory configured - do not alter |
SW1/1 |
Off |
|
|
NPU disabled |
SW1/2 |
On |
|
NPU enabled |
SW1/2 |
Off | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Parity 0 |
Bank 1 |
Parity 1 |
|
256KB |
(18) 41256 |
(2) 44256 |
NONE |
NONE |
|
512KB |
(18) 41256 |
(2) 44256 |
(18) 4164 |
NONE |
|
640KB |
(18) 41256 |
(2) 44256 |
(18) 4464 |
NONE |
|
1MB |
(18) 41256 |
(2) 44256 |
(18) 41256 |
(2) 44256 |
|
CACHE CONFIGURATION | ||
|
Size |
SW1/3 |
SW1/4 |
|
256KB |
Off |
Off |
|
512KB |
Off |
On |
|
640KB |
On |
Off |
|
1MB |
On |
On |
|
VIDEO TYPE CONFIGURATION | ||
|
Type |
SW1/5 |
SW1/6 |
|
CGA (40 x 20) |
Off |
On |
|
CGA (80 x 25) |
On |
Off |
|
EGA/VGA |
On |
On |
|
Monochrome |
Off |
Off |
|
FLOPPY DRIVE CONFIGURATION | ||
|
Type |
SW1/7 |
SW1/8 |
|
Drive A 5.25" |
On |
Off |
|
Drive B 5.25" |
Off |
On |
|
Drive A 3.50" |
Off |
On |
|
Drive B 3.50" |
On |
Off |