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  |