UNIDENTIFIED
SUNTAC 286-12
|
Processor |
80286 |
|
Processor Speed |
12MHz |
|
Chip Set |
Suntac |
|
Max. Onboard DRAM |
4MB |
|
Cache |
None |
|
BIOS |
AMI/Award/ERSO/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 |
|
External EMS selection |
JP2 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
| » |
Internal battery switch |
BS |
N/A |
| » |
Factory configured - do not alter |
J18 |
N/A |
| » |
Keyboard BIOS type select Award |
JP7 |
pins 2 & 3 closed |
|
Keyboard BIOS type select Phoenix |
JP7 |
pins 1 & 2 closed | |
| » |
Monitor type select color |
SW1 |
pins 2 & 3 closed |
|
Monitor type select monochrome |
SW1 |
pins 1 & 2 closed | |
|
EMS port address select 0E8H- 0EFH |
SW2/4 |
Off | |
|
EMS port address select 098H- 09FH |
SW2/4 |
On | |
|
Note: The location of JP7 is unidentified. | |||
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
512KB |
(18) 41256 |
NONE |
|
640KB |
(18) 41256 |
(18) 4164 |
|
1MB |
(18) 41256 |
(18) 41256 |
|
640KB+EMS (384KB) |
(18) 41256 |
(18) 41256 |
|
2MB |
(18) 411000 |
NONE |
|
640KB+EMS (1408KB) |
(18) 411000 |
NONE |
|
4MB |
(18) 411000 |
(18) 411000 |
|
640KB+EMS (3456KB) |
(18) 411000 |
(18) 411000 |
|
DRAM SWITCH CONFIGURATION | |||
|
Size |
SW2/6 |
SW2/7 |
SW2/8 |
|
512KB |
On |
On |
On |
|
640KB |
On |
On |
Off |
|
1MB |
On |
Off |
On |
|
640KB+EMS (384KB) |
On |
Off |
Off |
|
2MB |
Off |
On |
On |
|
640KB+EMS (1408KB) |
Off |
On |
Off |
|
4MB |
Off |
Off |
On |
|
640KB+EMS (3456KB) |
Off |
Off |
Off |
|
CPU SPEED CONFIGURATION | |||
|
Speed |
JP1 |
JP4 |
SW2/1 |
|
CPU speed forced high |
pins 2 & 3 closed |
N/A |
Off |
|
CPU speed forced low |
pins 2 & 3 closed |
N/A |
On |
|
CPU speed forced high |
pins 1 & 2 closed |
Closed |
N/A |
|
CPU speed selectable at keyboard |
pins 1 & 2 closed |
Open |
Closed |
|
I/O WAIT STATE CONFIGURATION | |||
|
Wait state |
JP1 |
JP3 |
SW2/3 |
|
4 |
pins 2 & 3 closed |
pins 2 & 3 closed |
On |
|
6 |
pins 2 & 3 closed |
pins 2 & 3 closed |
Off |
|
BIOS CONFIGURATION | |||
|
Type |
JP9 |
SW2/5 | |
| » |
27256 |
pins 2 & 3 closed |
On |
|
27128 |
pins 1 & 2 closed |
Off | |
|
EMS TOGGLE CONFIGURATION | ||
|
Setting |
JP2 |
SW2/8 |
|
On |
Closed |
Off |
|
Off |
Open |
On |