UNIDENTIFIED
386-VC-H
| Processor | AM386DX/80386DX/CX486DLC | 
| Processor Speed | 33/40MHz | 
| Chip Set | VIA | 
| Max. Onboard DRAM | 32MB | 
| Cache | 32/64/128/256KB | 
| BIOS | Award | 
| Dimensions | 254mm x 218mm | 
| I/O Options | None | 
| NPU Options | 80387DX/CX487DLC/3167 | 
 
| CONNECTIONS | |||
| Purpose | Location | Purpose | Location | 
| Turbo LED | J6 | Speaker | J9 | 
| Turbo switch | J7 | Power LED & keylock | J10 | 
| Reset switch | J8 | ||
| USER CONFIGURABLE SETTINGS | |||
| Function | Jumper | Position | |
| » | CMOS memory normal operation | J1 | Open | 
| CMOS memory clear | J1 | Closed | |
| » | Monitor type select monochrome/EGA/VGA | J2 | Open | 
| Monitor type select color | J2 | Closed | |
| » | NPU synchronous with CPU | J5 | pins 1 & 2 closed | 
| NPU asynchronous with CPU | J5 | pins 2 & 3 closed | |
| » | CX487DLC disabled | JN1 | pins 2 & 3 closed | 
| CX487DLC enabled | JN1 | pins 1 & 2 closed | |
| DRAM CONFIGURATION | ||
| Size | Bank 0 | Bank 1 | 
| 1MB | (4) 256K x 9 | NONE | 
| 2MB | (4) 256K x 9 | (4) 256K x 9 | 
| 4MB | (4) 1M x 9 | NONE | 
| 5MB | (4) 256K x 9 | (4) 1M x 9 | 
| 5MB | (4) 1M x 9 | (4) 256K x 9 | 
| 8MB | (4) 1M x 9 | (4) 1M x 9 | 
| 16MB | (4) 4M x 9 | NONE | 
| 17MB | (4) 256K x 9 | (4) 4M x 9 | 
| 17MB | (4) 4M x 9 | (4) 256K x 9 | 
| 20MB | (4) 1M x 9 | (4) 4M x 9 | 
| 20MB | (4) 4M x 9 | (4) 1M x 9 | 
| 32MB | (4) 4M x 9 | (4) 4M x 9 | 
| CACHE CONFIGURATION | ||||
| Size | Bank 0 | Bank 1 | M10 | TAG | 
| 32KB | (4) 8K x 8 | NONE | (1) 8K x 8 | (1) 8K x 8 | 
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 | (1) 8K x 8 | 
| 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 | (1) 8K x 8 | 
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 | (1) 32K x 8 | 
| Note: M10 is optional and does not have to be installed. | ||||
| CACHE JUMPER CONFIGURATION | ||||||
| Size | JS1 | JS2 | JS3 | JS4 | JS5 | JS6 | 
| 32KB | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | 
| 64KB | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 
| 128KB | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 | 
| 256KB | 2 & 3 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 | 
| Note: Pins designated should be in the closed position. | ||||||
| CPU TYPE CONFIGURATION | |||
| Type | JC1 | JC3 | JC4 | 
| AM386DX | Open | pins 1 & 2 closed | Closed | 
| 80386DX (PQFP) | Open | pins 2 & 3 closed | Open | 
| 80386DX (PGA) | Open | pins 1 & 2 closed | Closed | 
| CX486DLC | Closed | pins 1 & 2 closed | Closed |