EISA TECH CORPORATION
SINGLE-CHIP 286
| 
 Processor  | 
 80286  | 
| 
 Processor Speed  | 
 12/16MHz  | 
| 
 Chip Set  | 
 Acer  | 
| 
 Max. Onboard DRAM  | 
 5MB  | 
| 
 Cache  | 
 None  | 
| 
 BIOS  | 
 AMI/Award  | 
| 
 Dimensions  | 
 230mm x 215mm  | 
| 
 I/O Options  | 
 None  | 
| 
 NPU Options  | 
 80287  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 External battery  | 
 J1  | 
 Turbo switch  | 
 J2 pins 10 & 12 & 14  | 
| 
 Keylock  | 
 J2 pins 1 & 3  | 
 Reset switch  | 
 J2 pins 18 & 20  | 
| 
 Turbo LED  | 
 J2 pins 4 & 6  | 
 Speaker  | 
 J2 pins 13 & 15 & 17 & 19  | 
| 
 Power LED  | 
 J2 pins 5 & 7 & 9  | ||
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper  | 
 Position  | |
| » | 
 Monitor type select color  | 
 JP4  | 
 pins 3 & 4 closed  | 
| 
 Monitor type select monochrome  | 
 JP4  | 
 pins 1 & 2 closed  | |
| 
 NPX clock mode select CPU CLK/3  | 
 JP11  | 
 Closed  | |
| 
 NPX clock mode select CPU CLK/1  | 
 JP11  | 
 Open  | |
| 
 DRAM CONFIGURATION  | ||||||
| 
 Size  | 
 U25 - U28  | 
 U17 & U19  | 
 U33 - U36  | 
 U16 & U18  | 
 Bank 0  | 
 Bank 1  | 
| 
 512KB  | 
 (4) 44256  | 
 (2) 41256  | 
 NONE  | 
 NONE  | 
 NONE  | 
 NONE  | 
| 
 512KB  | 
 NONE  | 
 NONE  | 
 NONE  | 
 NONE  | 
 (2) 256K x 9  | 
 NONE  | 
| 
 1MB  | 
 (4) 44256  | 
 (2) 41256  | 
 (4) 44256  | 
 (2) 41256  | 
 NONE  | 
 NONE  | 
| 
 1MB  | 
 NONE  | 
 NONE  | 
 NONE  | 
 NONE  | 
 (2) 256K x 9  | 
 (2) 256K x 9  | 
| 
 2MB  | 
 (4) 44256  | 
 (2) 41256  | 
 (4) 44256  | 
 (2) 41256  | 
 (2) 256K x 9  | 
 (2) 256K x 9  | 
| 
 2MB  | 
 NONE  | 
 NONE  | 
 NONE  | 
 NONE  | 
 (2) 1M x 9  | 
 NONE  | 
| 
 4MB  | 
 NONE  | 
 NONE  | 
 NONE  | 
 NONE  | 
 (2) 1M x 9  | 
 (2) 1M x 9  | 
| 
 5MB  | 
 (4) 44256  | 
 (2) 41256  | 
 (4) 44256  | 
 (2) 41256  | 
 (2) 1M x 9  | 
 (2) 1M x 9  | 
| 
 Note:Either DIP (U17,U19,U25,U26,U27,U28) or SIMM may be used as Bank 0.  | ||||||
| 
 DRAM JUMPER CONFIGURATION  | ||||||
| 
 Size  | 
 JP5  | 
 JP6  | 
 JP7  | 
 JP8  | 
 JP9  | 
 JP10  | 
| 
 512KB  | 
 1 & 2  | 
 1 & 2  | 
 1 & 2  | 
 1 & 2  | 
 1 & 2  | 
 1 & 2  | 
| 
 512KB  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
| 
 1MB  | 
 1 & 2  | 
 1 & 2  | 
 1 & 2  | 
 1 & 2  | 
 1 & 2  | 
 1 & 2  | 
| 
 1MB  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
| 
 2MB  | 
 1 & 2  | 
 1 & 2  | 
 1 & 2  | 
 1 & 2  | 
 1 & 2  | 
 1 & 2  | 
| 
 2MB  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
| 
 4MB  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
| 
 5MB  | 
 1 & 2  | 
 1 & 2  | 
 1 & 2  | 
 1 & 2  | 
 1 & 2  | 
 1 & 2  | 
| 
 Note:Pins designated should be in the closed position.  | ||||||