SILICON VALLEY COMPUTER, INC.
486WB
|
Processor |
80486DX |
|
Processor Speed |
33/50MHz |
|
Chip Set |
OPTI |
|
Max. Onboard DRAM |
32MB |
|
Cache |
64/256KB |
|
BIOS |
C & T |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit external memory card slot |
|
NPU Options |
4167 |
|
CONNECTIONS |
|||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J10 |
32-bit external memory card |
S1 |
|
Power LED & keylock |
J23 |
Reset switch |
SW1 |
|
Speaker |
J24 |
Turbo switch |
SW2 |
|
Turbo LED |
JP12 |
|
|
|
USER CONFIGURABLE SETTINGS |
|||
|
Function |
Jumper |
Position |
|
|
|
Monitor type select CGA |
JP1 |
Closed |
|
|
Monitor type select monochrome, EGA, or VGA |
JP1 |
Open |
|
|
CMOS memory normal operation |
JP2 |
pins 2 & 3 closed |
|
|
CMOS memory clear |
JP2 |
pins 1 & 2 closed |
|
|
Bus speed select ATCLK/4 |
JP3 |
Closed |
|
|
Bus speed select ATCLK/6 |
JP3 |
Open |
|
|
Factory configured - do not alter |
JP4 |
N/A |
|
|
Factory configured - do not alter |
JP5 |
N/A |
|
|
Factory configured - do not alter |
JP6 |
N/A |
|
|
Factory configured - do not alter |
JP7 |
N/A |
|
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 |
|
CACHE CONFIGURATION |
|||
|
Size |
Bank 0 |
TAG (U33) |
TAG (U34) |
|
64KB |
(8) 8K x 8 |
(1) 64K x 1 |
(1) 8K x 8 |
|
256KB |
(8) 8K x 8 |
(1) 64K x 1 |
(1) 32K x 8 |
|
CACHE JUMPER CONFIGURATION |
||||
|
Size |
JP8 |
JP9 |
JP10 |
JP11 |
|
64KB |
Open |
Open |
Open |
Open |
|
256KB |
Closed |
Closed |
Closed |
Closed |