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 |