UNIDENTIFIED
286-SYSTEM BOARD
| 
 Processor  | 
 AM286/80286  | 
| 
 Processor Speed  | 
 6/8/10/12/16MHz  | 
| 
 Chip Set  | 
 VLSI  | 
| 
 Video Chip Set  | 
 None  | 
| 
 Maximum Onboard Memory  | 
 4MB  | 
| 
 Maximum Video Memory  | 
 None  | 
| 
 Cache  | 
 None  | 
| 
 BIOS  | 
 AMI/Award/Phoenix  | 
| 
 Dimensions  | 
 330mm x 218mm  | 
| 
 I/O Options  | 
 None  | 
| 
 NPU Options  | 
 80287  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 Speaker  | 
 J1  | 
 Turbo LED  | 
 J4  | 
| 
 Power LED & keylock  | 
 J2  | 
 Turbo switch  | 
 J5  | 
| 
 Reset switch  | 
 J3  | ||
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Label  | 
 Position  | |
| 
 BIOS type select 27128  | 
 JP1  | 
 Pins 2 & 3 closed  | |
| 
 BIOS type select 27256  | 
 JP1  | 
 Pins 1 & 2 closed  | |
| 
 Monitor type select color  | 
 JP7  | 
 Closed  | |
| 
 Monitor type select monochrome  | 
 JP7  | 
 Open  | |
| 
 Wait state select 0 wait states  | 
 JP8  | 
 Closed  | |
| 
 Wait state select 1 wait state  | 
 JP8  | 
 Open  | |
| 
 DRAM CONFIGURATION  | ||||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 Bank 2  | 
 Bank 3  | 
| 
 512KB  | 
 (18) 41256  | 
 None  | 
 None  | 
 None  | 
| 
 512KB  | 
 None  | 
 None  | 
 (2) 256K x 9  | 
 None  | 
| 
 640KB  | 
 (18) 41256  | 
 (18) 4164  | 
 None  | 
 None  | 
| 
 1MB  | 
 (18) 41256  | 
 (18) 41256  | 
 None  | 
 None  | 
| 
 1MB  | 
 None  | 
 None  | 
 (2) 256K x 9  | 
 (2) 256K x 9  | 
| 
 2MB  | 
 (18) 411000  | 
 None  | 
 None  | 
 None  | 
| 
 2MB  | 
 None  | 
 None  | 
 (2) 1M x 9  | 
 None  | 
| 
 4MB  | 
 (18) 411000  | 
 (18) 411000  | 
 None  | 
 None  | 
| 
 4MB  | 
 None  | 
 None  | 
 (2) 1M x 9  | 
 (2) 1M x 9  | 
| 
 DRAM JUMPER CONFIGURATION  | |||
| 
 Size  | 
 JP2  | 
 JP3  | 
 JP4  | 
| 
 512KB  | 
 Open  | 
 Closed  | 
 Closed  | 
| 
 640KB  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 1MB  | 
 Closed  | 
 Open  | 
 Closed  | 
| 
 2MB  | 
 Closed  | 
 Closed  | 
 Open  | 
| 
 4MB  | 
 Closed  | 
 Closed  | 
 Closed  | 
| 
 CPU SPEED SELECTION  | |
| 
 Speed  | 
 JP6  | 
| 
 6/12MHz  | 
 Open  | 
| 
 8/12MHz  | 
 Closed  |