COMPAQ COMPUTER CORPORATION
PORTABLE 286
| 
 Processor  | 
 80286  | 
| 
 Processor Speed  | 
 6/8MHz  | 
| 
 Chip Set  | 
 FOREX  | 
| 
 Max. Onboard DRAM  | 
 640KB  | 
| 
 Cache  | 
 None  | 
| 
 BIOS  | 
 AMI  | 
| 
 Dimensions  | 
 330mm x 218mm  | 
| 
 I/O Options  | 
 None  | 
| 
 NPU Options  | 
 8087/80287/80387SX/CX487SLC/80387DX/CX487DLC/3167/4167  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 External power connector  | 
 S1  | 
 External battery  | 
 S3  | 
| 
 Monitor connector  | 
 S2  | 
 Speaker  | 
 S4  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper  | 
 Position  | |
| 
 »  | 
 Monitor select monochrome video display controller  | 
 ED  | 
 pins 1 & 2 closed  | 
| 
 Monitor select COMPAQ duel-mode video display controller  | 
 ED  | 
 pins 2 & 3 closed  | |
| 
 »  | 
 Factory configured - do not alter  | 
 EM  | 
 N/A  | 
| 
 »  | 
 Speed select secondary, 6MHz  | 
 ES  | 
 pins 2 & 3 closed  | 
| 
 Speed select primary, 8MHz  | 
 ES  | 
 pins 1 & 2 closed  | |
| 
 DRAM CONFIGURATION  | ||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
| 
 128KB  | 
 128KB  | 
 NONE  | 
| 
 256KB  | 
 128KB  | 
 (18) 4164  | 
| 
 640KB  | 
 128KB  | 
 (18) 41256  | 
| 
 TECHNICAL NOTE  | 
| 
 E1, E2, E3 is unidentified by the manufacturer.  |