UNIDENTIFIED
S 286 SYSTEM BOARD
|
Processor |
80286 |
|
Processor Speed |
6/10/12/16MHz |
|
Chip Set |
VLSI |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
4MB |
|
Maximum Video Memory |
None |
|
Cache |
None |
|
BIOS |
Award/Phoenix |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80287 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Speaker |
J19 |
Turbo switch |
JP4 |
|
Power LED & keylock |
J20 |
Turbo LED |
JP5 |
|
External battery |
J21 |
Reset switch |
JP6 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
|
Factory configured - do not alter |
DSP/2 |
On |
|
EMS port address select 0E8H - 0EFH |
DSP/4 |
On | |
|
EMS port address select 098H - 09FH |
DSP/4 |
Off | |
|
|
Factory configured - do not alter |
JP2 |
Unidentified |
|
BIOS type select Phoenix |
JP7 |
Pins 1 & 2 closed | |
|
BIOS type select Award |
JP7 |
Pins 2 & 3 closed | |
|
EMS type select extended mode |
JP8 |
Open | |
|
EMS type select expanded mode |
JP8 |
Closed | |
|
|
Factory configured - do not alter |
JP10 |
Unidentified |
|
Wait state select 1 wait state |
JP11 |
Pins 1 & 2 closed | |
|
Wait state select 0 wait states |
JP11 |
Pins 2 & 3 closed | |
|
Monitor type select monochrome |
SW1 |
Pins 1 & 2 closed | |
|
Monitor type select color |
SW1 |
Pins 2 & 3 closed | |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
512KB |
(18) 41256 |
None |
|
640KB |
(18) 41256 |
(18) 4164 |
|
1MB |
(18) 41256 |
(18) 41256 |
|
1MB (EMS) |
(18) 41256 |
(18) 41256 |
|
2MB |
(18) 411000 |
None |
|
2MB (EMS) |
(18) 411000 |
None |
|
4MB |
(18) 411000 |
(18) 411000 |
|
4MB (EMS) |
(18) 411000 |
(18) 411000 |
|
DRAM SWITCH CONFIGURATION | |||
|
Size |
DSP/6 |
DSP/7 |
DSP/8 |
|
512KB |
On |
On |
On |
|
640KB |
On |
On |
Off |
|
1MB |
On |
Off |
On |
|
1MB (EMS) |
On |
Off |
Off |
|
2MB |
Off |
On |
On |
|
2MB (EMS) |
Off |
On |
Off |
|
4MB |
Off |
Off |
On |
|
4MB (EMS) |
Off |
Off |
Off |
|
DRAM JUMPER CONFIGURATION | |
|
Size |
J18 |
|
256KB |
Pins 1 & 2 closed |
|
512KB |
Pins 2 & 3 closed |
|
CLOCK SPEED SELECTION | ||
|
Speed |
DSP/1 |
JP1 |
|
Low |
On |
Pins 2 & 3 closed |
|
High |
Off |
Pins 2 & 3 closed |
|
Keyboard controlled |
N/A |
Pins 1 & 2 closed |
|
BIOS SELECTION | ||
|
Size |
JP9 |
DSP/5 |
|
27128 |
Pins 1 & 2 closed |
On |
|
27256 |
Pins 2 & 3 closed |
Off |
|
I/O WAIT STATE SELECTION | ||
|
Wait states |
DSP/3 |
JP3 |
|
4 |
On |
Pins 2 & 3 closed |
|
6 |
Off |
Pins 2 & 3 closed |
|
Keyboard controlled |
N/A |
Pins 1 & 2 closed |