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. |