DTK COMPUTER, INC.
MBVLSI-168 (V.2)
| 
 Processor  | 
 80286  | 
| 
 Processor Speed  | 
 8/12MHz  | 
| 
 Chip Set  | 
 Unidentified  | 
| 
 Video Chip Set  | 
 None  | 
| 
 Maximum Onboard Memory  | 
 4MB  | 
| 
 Maximum Video Memory  | 
 None  | 
| 
 Cache  | 
 None  | 
| 
 BIOS  | 
 Unidentified  | 
| 
 Dimensions  | 
 330mm x 218mm  | 
| 
 I/O Options  | 
 None  | 
| 
 NPU Options  | 
 80287  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 Reset switch  | 
 JP1  | 
 Turbo switch  | 
 JP4  | 
| 
 Power LED & keylock  | 
 JP2  | 
 Turbo LED  | 
 JP5  | 
| 
 Speaker  | 
 JP3  | 
 External battery  | 
 JP17  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Label  | 
 Position  | |
| 
 »  | 
 Factory configured - do not alter (100ns memory)  | 
 JP6  | 
 Pins 1 & 2 closed  | 
| 
 Wait state select 0 wait states  | 
 JP10  | 
 Closed  | |
| 
 Wait state select 1 wait state  | 
 JP10  | 
 Open  | |
| 
 BIOS type select 27256  | 
 JP11  | 
 Closed  | |
| 
 BIOS type select 27128  | 
 JP11  | 
 Open  | |
| 
 Monitor type select color  | 
 JP12  | 
 Closed  | |
| 
 Monitor type select monochrome  | 
 JP12  | 
 Open  | |
| 
 »  | 
 Power good signal detect from board  | 
 JP16  | 
 Pins 1 & 2 closed  | 
| 
 Power good signal detect from power supply  | 
 JP16  | 
 Pins 2 & 3 closed  | |
| 
 DRAM CONFIGURATION 1  | ||||
| 
 Size  | 
 Bank 0A  | 
 Parity 0  | 
 Bank 0B  | 
 Parity 1  | 
| 
 512KB  | 
 (4) 44256  | 
 (2) 41256  | 
 None  | 
 None  | 
| 
 1MB  | 
 (4) 44256  | 
 (2) 41256  | 
 (4) 44256  | 
 (2) 41256  | 
| 
 DRAM JUMPER CONFIGURATION 1  | |||
| 
 Size  | 
 JP7  | 
 JP8  | 
 JP9  | 
| 
 512KB  | 
 Closed  | 
 Closed  | 
 Closed  | 
| 
 1MB  | 
 Closed  | 
 Open  | 
 Closed  | 
| 
 DRAM CONFIGURATION 2  | ||||
| 
 Size  | 
 Bank 0  | 
 Parity 0  | 
 Bank 1  | 
 Parity 1  | 
| 
 512KB  | 
 (16) 41256  | 
 (2) 41256  | 
 None  | 
 None  | 
| 
 640KB  | 
 (16) 41256  | 
 (2) 41256  | 
 (16) 4164  | 
 (2) 4164  | 
| 
 1MB  | 
 (16) 41256  | 
 (2) 41256  | 
 (16) 41256  | 
 (2) 41256  | 
| 
 2MB  | 
 (16) 411000  | 
 (2) 411000  | 
 None  | 
 None  | 
| 
 4MB  | 
 (16) 411000  | 
 (2) 411000  | 
 (16) 411000  | 
 (2) 411000  | 
| 
 DRAM JUMPER CONFIGURATION 2  | |||
| 
 Size  | 
 JP7  | 
 JP8  | 
 JP9  | 
| 
 512KB  | 
 Closed  | 
 Closed  | 
 Closed  | 
| 
 640KB  | 
 Closed  | 
 Closed  | 
 Open  | 
| 
 1MB  | 
 Closed  | 
 Open  | 
 Closed  | 
| 
 2MB  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 4MB  | 
 Open  | 
 Closed  | 
 Closed  | 
| 
 DRAM CONFIGURATION 3  | ||
| 
 Size  | 
 Bank 2  | 
 Bank 3  | 
| 
 512KB  | 
 (2) 256K x 9  | 
 None  | 
| 
 1MB  | 
 (2) 256K x 9  | 
 (2) 256K x 9  | 
| 
 2MB  | 
 (2) 1M x 9  | 
 None  | 
| 
 4MB  | 
 (2) 1M x 9  | 
 (2) 1M x 9  | 
| 
 DRAM JUMPER CONFIGURATION 3  | |||
| 
 Size  | 
 JP7  | 
 JP8  | 
 JP9  | 
| 
 512KB  | 
 Closed  | 
 Closed  | 
 Closed  | 
| 
 1MB  | 
 Closed  | 
 Open  | 
 Closed  | 
| 
 2MB  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 4MB  | 
 Open  | 
 Closed  | 
 Closed  | 
| 
 KEYBOARD BIOS PIN SELECTION  | ||||
| 
 Setting  | 
 JP13  | 
 JP14  | 
 JP15  | 
 JP18  | 
| 
 Pin 23  | 
 Open  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 Pin 27  | 
 Open  | 
 Open  | 
 Closed  | 
 Open  | 
| 
 Pin 30  | 
 Closed  | 
 Open  | 
 Open  | 
 Open  | 
| 
 Pin 32  | 
 Open  | 
 Open  | 
 Open  | 
 Closed  |