UNIDENTIFIED
4386-VC-V
Processor | 80386DX/CX486DLC/80486SX/80487SX/80486DX/80486DX2 |
Processor Speed | 20/25/33/40/50(internal)/50/66(internal)MHz |
Chip Set | VIA |
Max. Onboard DRAM | 64/128MB (depends on CPU installed) |
Cache | 32/64/128/256KB |
BIOS | Award |
Dimensions | 330mm x 218mm |
I/O Options | 32-bit VESA local bus slots (2) |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Turbo LED | J6 | Speaker | J9 |
Turbo switch | J7 | Power LED & keylock | J10 |
Reset switch | J8 | 32-bit VESA local bus slots | SL1 & SL2 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Monitor type select monochrome/EGA/VGA | J1 | Open |
Monitor type select color | J1 | Closed | |
» | CMOS memory normal operation | J2 | Open |
CMOS memory clear | J2 | Closed | |
» | Factory configured - do not alter | JC5 | N/A |
» | Factory configured - do not alter | JC6 | N/A |
» | Factory configured - do not alter | JK1 | N/A |
» | NPU synchronous with CPU | JN1 | pins 1 & 2 closed |
NPU asynchronous with CPU | JN1 | pins 2 & 3 closed | |
Note: The location of J1 & J2 are unidentified. |
DRAM CONFIGURATION (80386) | ||
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 |
64MB | (4) 16M x 9 | NONE |
DRAM CONFIGURATION (80486) | ||
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 |
64MB | (4) 16M x 9 | NONE |
65MB | (4) 256K x 9 | (4) 16M x 9 |
65MB | (4) 16M x 9 | (4) 256K x 9 |
DRAM CONFIGURATION (80486 CON’T) | ||
Size | Bank 0 | Bank 1 |
68MB | (4) 1M x 9 | (4) 16M x 9 |
68MB | (4) 16M x 9 | (4) 1M x 9 |
80MB | (4) 4M x 9 | (4) 16M x 9 |
80MB | (4) 16M x 9 | (4) 4M x 9 |
128MB | (4) 16M x 9 | (4) 16M x 9 |
CACHE CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | TAG 0 | TAG 1 |
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: TAG 1 is alter RAM and may not be present. |
CACHE JUMPER CONFIGURATION | ||||||
Size | JS1 | JS2 | JS3 | JS4 | JS5 | JS6 |
32KB | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 |
64KB | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
128KB | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 |
256KB | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
Note: Pins designated should be in the closed position. |
CPU TYPE CONFIGURATION | ||||||
Type | JI0 | JI1 | JI2 | JI3 | JI4 | JI5 |
80386DX | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
80486SX | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
80487SX | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
CX486DLC | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
80486DX | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
80486DX2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
Note: Pins desingated should be in the closed position. |
CPU TYPE CONFIGURATION (CON’T) | ||||||
Type | JI6 | JI7 | JC1 | JC2 | JC3 | JC4 |
80386DX | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | Open |
80486SX | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 | Open | Open |
80487SX | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | Open |
CX486DLC | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2, 3 & 4, 5 & 6 |
80486DX | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | Open |
80486DX2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | Open |
Note: Pins desingated should be in the closed position. |
CPU SPEED CONFIGURATION | |||
Speed | JK2 | JK3 | JK4 |
20MHz | pins 2 & 3 closed | pins 2 & 3 closed | pins 2 & 3 closed |
25MHz | pins 2 & 3 closed | pins 2 & 3 closed | pins 2 & 3 closed |
33MHz (80386 & CX486) | pins 2 & 3 closed | pins 1 & 2 closed | pins 2 & 3 closed |
33MHz | pins 1 & 2 closed | pins 2 & 3 closed | pins 1 & 2 closed |
40MHz (80386 & CX486) | pins 2 & 3 closed | pins 1 & 2 closed | pins 2 & 3 closed |
50iMHz | pins 2 & 3 closed | pins 2 & 3 closed | pins 2 & 3 closed |
50MHz | pins 1 & 2 closed | pins 2 & 3 closed | pins 2 & 3 closed |
66iMHz | pins 1 & 2 closed | pins 2 & 3 closed | pins 1 & 2 closed |
VESA WAIT STATE CONFIGURATION | |
Wait states | JV2 |
0 wait states | pins 1 & 2 closed |
1 wait state | pins 2 & 3 closed |
BUS SPEED CONFIGURATION | |
CPU speed | JV1 |
<= 33MHz | pins 1 & 2 closed |
> 33MHz | pins 2 & 3 closed |