486-VC-HD Motherboard Settings and Configuration
FIRST INTERNATIONAL COMPUTER, INC.
486-VC-HD
Processor | 80486SX/80487SX/80486DX/80486DX2 |
Processor Speed | 25/33/40/50(internal)/50/66(internal)MHz |
Chip Set | VIA |
Max. Onboard DRAM | 128MB |
Cache | 64/128/256KB |
BIOS | Award |
Dimensions | 254mm x 220mm |
I/O Options | None |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Turbo LED | J5 | Speaker | J8 |
Turbo switch | J6 | Power LED & keylock | J9 |
Reset switch | J7 | ||
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 | |
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 |
64MB | (4) 16M x 9 | NONE |
65MB | (4) 256K x 9 | (4) 16M x 9 |
65MB | (4) 16M x 9 | (4) 256K x 9 |
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 |
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CACHE CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | TAG 0 | TAG 1 |
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 optional. | ||||
CACHE JUMPER CONFIGURATION | ||
Size | JS1 | JS2 |
64KB | pins 1 & 2 closed | pins 1 & 2 closed |
128KB | pins 2 & 3 closed | pins 1 & 2 closed |
256KB | pins 2 & 3 closed | pins 2 & 3 closed |
CPU TYPE CONFIGURATION | |||
Type | JC1 | JC2 | JC3 |
80486SX | pins 2 & 3 closed | pins 2 & 3 closed | Open |
80487SX | pins 1 & 2 closed | pins 1 & 2 closed | pins 2 & 3 closed |
80486DX | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2 closed |
80486DX2 | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2 closed |
CPU TYPE CONFIGURATION | |
Type | JC4 |
PQFP installed | Open |
PGA installed | Open |
PQFP & PGA installed | Closed |
CPU SPEED CONFIGURATION | ||
Speed | JK1 | JK2 |
1x | pins 2 & 3 closed | pins 1 & 2 closed |
2x | pins 1 & 2 closed | pins 2 & 3 closed |
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