486BB Motherboard Settings and Configuration
SILICON VALLEY COMPUTER, INC.
486BB
Processor | 80486SX/80486DX |
Processor Speed | 16/25/33MHz |
Chip Set | OPTI |
Max. Onboard DRAM | 32MB |
Cache | None |
BIOS | SVC |
Dimensions | 220mm x 220mm |
I/O Options | None |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Turbo LED | CR1 | Power LED & keylock | LED |
External battery | J1 | Speaker | SPK |
Turbo switch | JP6 | Reset switch | SW1 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
| » | CMOS memory normal operation | JP1 | pins 2 & 3 closed |
CMOS memory clear | JP1 | pins 1 & 2 closed | |
| » | Monitor type select CGA | JP2 | Closed |
Monitor type select monochrome/EGA/VGA | JP2 | Open | |
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 |
8MB | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE |
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 |
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