YOUNG MICRO SYSTEMS, INC.
VS486F/S-3VL
|
Processor |
80486SX/80486DX/80486DX2 |
|
Processor Speed |
25/33/40/50(internal)/66(internal)MHz |
|
Chip Set |
Symphony |
|
Max. Onboard DRAM |
64MB |
|
Cache |
64/256/1024KB |
|
BIOS |
AMI |
|
Dimensions |
230mm x 218mm |
|
I/O Options |
32-bit VESA local bus slots (3) |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J1 |
Turbo switch |
JP24 |
|
Power LED & keylock |
JP20 |
32-bit VESA Local bus slot |
S1 |
|
Speaker |
JP21 |
32-bit VESA Local bus slot |
S2 |
|
Reset switch |
JP22 |
32-bit VESA Local bus slot |
S3 |
|
Turbo LED |
JP23 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
Factory configured - do not alter |
J2 |
Unknown |
|
|
Flash BIOS write protect enabled |
JP2 |
pins 1 & 2 closed |
|
Flash BIOS write protect disabled |
JP2 |
pins 2 & 3 closed | |
|
|
Factory configured - do not alter |
JP3 |
Unknown |
|
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) 1M x 9 |
(4) 256K x 9 |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
|
17MB |
(4) 4M x 9 |
(4) 256K x 9 |
|
20MB |
(4) 1M x 9 |
(4) 4M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
64MB |
(4) 16M x 9 |
NONE |
|
CPU SPEED CONFIGURATION | |||||||
|
Speed |
JA1 |
JP4 |
JP5 |
JP6 |
JP7 |
JP10 |
JP11 |
|
25MHz |
pins 2 & 3 |
pins 2 & 3 |
Open |
Closed |
Closed |
pins 1 & 2 |
pins 2 & 3 |
|
33MHz |
pins 2 & 3 |
pins 2 & 3 |
Closed |
Open |
Closed |
pins 1 & 2 |
pins 2 & 3 |
|
50I MHz |
pins 1 & 2 |
pins 1 & 2 |
Open |
Closed |
Closed |
pins 1 & 2 |
pins 1 & 2 |
|
66I MHz |
pins 2 & 3 |
pins 2 & 3 |
Closed |
Open |
Closed |
pins 1 & 2 |
pins 2 & 3 |
|
Note:Pins designated should be in the closed position. | |||||||
|
CPU SPEED CONFIGURATION | ||||||||
|
Speed |
JP12 |
JP13 |
JP14 |
JP15 |
JP16 |
JP17 |
JP18 |
JP30 |
|
25MHz |
Closed |
Open |
Closed |
Open |
Open |
Closed |
Open |
Open |
|
33MHz |
Closed |
Open |
Closed |
Open |
Open |
Closed |
Open |
Open |
|
50I MHz |
Closed |
Closed |
Open |
Open |
Closed |
Closed |
Closed |
Open |
|
66I MHz |
Closed |
Closed |
Open |
Open |
Closed |
Closed |
Closed |
Open |
|
CACHE CONFIGURATION | |||
|
Size |
Max Cachable |
Cache |
TAG |
|
64KB |
8MB |
(4) 8K x 8 |
(1) 8K x 8 |
|
128KB |
32MB |
(4) 32K x 8 |
(1) 32K x 8 |
|
256KB |
64MB |
(4) 128K x 8 |
(1) 128K x 8 |
|
CACHE JUMPER CONFIGURATION | |||||
|
Size |
JP8 |
JP9 |
JP19 |
JP25 |
JP26 |
|
64KB |
pins 2 & 3 |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
|
256KB |
pins 2 & 3 |
pins 1 & 2 |
pins 2 & 3 |
pins 2 & 3 |
pins 2 & 3 |
|
1MB |
pins 1 & 2 |
pins 2 & 3 |
pins 2 & 3 |
pins 2 & 3 |
pins 2 & 3 |