YOUNG MICRO SYSTEMS, INC.
VS486S
Processor |
80486SX/80486DX/80486DX2 |
Processor Speed |
25/33/40/50(internal)/66(internal)MHz |
Chip Set |
Symphony |
Max. Onboard DRAM |
64MB |
Cache |
64/256KB |
BIOS |
AMI |
Dimensions |
330mm x 218mm |
I/O Options |
None |
NPU Options |
4167 |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Speaker |
CN1 |
Turbo LED |
CN4 |
Power LED & keylock |
CN2 |
Turbo switch |
CN5 |
Reset switch |
CN3 |
DRAM CONFIGURATION | ||||
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
1MB |
(4) 256K x 9 |
NONE |
NONE |
NONE |
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
NONE |
NONE |
4MB |
(4) 1M x 9 |
NONE |
NONE |
NONE |
5MB |
(4) 1M x 9 |
(4) 256K x 9 |
NONE |
NONE |
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
NONE |
16MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
16MB |
(4) 4M x 9 |
NONE |
NONE |
NONE |
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
NONE |
NONE |
48MB |
(4) 4M x 9 |
(4) 4M x 9 |
(4) 4M x 9 |
NONE |
64MB |
(4) 4M x 9 |
(4) 4M x 9 |
(4) 4M x 9 |
(4) 4M x 9 |
CACHE CONFIGURABLE | |
Size |
Cache |
64KB |
(9) 8K x 8 |
256KB |
(9) 32K x 8 |
CACHE JUMPER CONFIGURATION | |||
Size |
J2 |
J5 |
J8 |
64KB |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
256KB |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
Note:This board is direct but not user upgradable and has two factory defauts to incorporate the 486DX/33MHz or 486DX/50MHz. |