NCR CORPORATION
MODEL 3386-6XXX PC925/PC386
| 
 Processor  | 
 80386  | 
| 
 Processor Speed  | 
 25MHz  | 
| 
 Chip Set  | 
 Unidentified  | 
| 
 Video Chip Set  | 
 None  | 
| 
 Maximum Onboard Memory  | 
 16MB (8MB on external memory card)  | 
| 
 Maximum Video Memory  | 
 None  | 
| 
 Cache  | 
 None  | 
| 
 BIOS  | 
 Unidentified  | 
| 
 Dimensions  | 
 355mm x 304mm  | 
| 
 I/O Options  | 
 External memory card  | 
| 
 NPU Options  | 
 80387  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 Turbo LED  | 
 J1  | 
 External battery  | 
 J9  | 
| 
 Speaker  | 
 J7  | 
 External memory card  | 
 SL1  | 
| 
 Power LED & keylock  | 
 J8  | ||
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Label  | 
 Position  | |
| 
 Jumper not used  | 
 J2  | 
 N/A  | |
| 
 »  | 
 BIOS type select 27256  | 
 J4  | 
 Pins 1 & 2 closed  | 
| 
 BIOS type select 27128  | 
 J4  | 
 Pins 2 & 3 closed  | |
| 
 »  | 
 NPU installed  | 
 J5  | 
 Pins 1 & 2 closed  | 
| 
 NPU not installed  | 
 J5  | 
 Pins 2 & 3 closed  | |
| 
 »  | 
 Manufacturing diagnostics loop disabled  | 
 SW/1  | 
 Off  | 
| 
 Manufacturing diagnostics loop enabled  | 
 SW/1  | 
 On  | |
| 
 Monitor type select color  | 
 SW/2  | 
 On  | |
| 
 Monitor type select monochrome  | 
 SW/2  | 
 Off  | |
| 
 DRAM CONFIGURATION  | ||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
| 
 4MB  | 
 411000  | 
 None  | 
| 
 8MB  | 
 411000  | 
 (4) 1M x 9  | 
| 
 Note: The location of banks 0 & 1 are unidentified. The number of chips for bank 0 are unidentified.  | ||
| 
 DRAM JUMPER CONFIGURATION  | |
| 
 Size  | 
 J27  | 
| 
 4MB  | 
 Pins 1 & 2, 3 & 4 closed  | 
| 
 8MB  | 
 Pins 2 & 3, 4 & 5 closed  | 
| 
 MISCELLANEOUS TECHINCAL NOTE  | 
| 
 The location of all pin 1s are unidentified.  |