UNIDENTIFIED
486SC-H
Processor | 80486SX/80487SX/80486DX/80486DX2 |
Processor Speed | 20/25/33/50(internal)MHz |
Chip Set | Unidentified |
Max. Onboard DRAM | 32MB |
Cache | 32/128KB |
BIOS | AMI |
Dimensions | 220mm x 220mm |
I/O Options | None |
NPU Options | 4167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Turbo LED | J1 | Speaker | J4 |
Turbo switch | J2 | Power LED & keylock | J5 |
Reset switch | J3 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | CPU clock speed select 1x | J8 | pins 1 & 2 closed |
CPU clock speed select 2x | J8 | pins 2 & 3 closed | |
» | Monitor type select monochrome/EGA/VGA | J9 | Open |
Monitor type select color | J9 | Closed | |
» | Cache wait state select 1 wait state | J12 | Open |
Cache wait state select 0 wait states | J12 | pins 3 & 4 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 | TAG |
32KB | (4) 8K x 8 | (1) 8K x 8 |
128KB | (4) 32K x 8 | (1) 8K x 8 |
CACHE JUMPER CONFIGURATION | ||||
Size | JS1 | JS2 | JS3 | JS4 |
32KB | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2 closed |
128KB | pins 2 & 3 closed | pins 2 & 3 closed | pins 2 & 3 closed | pins 2 & 3 closed |
CPU TYPE CONFIGURATION | |
Type | J7 |
80486SX | pins 1 & 2 closed |
80487SX | pins 2 & 3 closed |
80486DX | pins 2 & 3 closed |
80486DX2 | pins 2 & 3 closed |