YOUNG MICRO SYTEMS, INC.
VEGA 486F-2VL
|
Processor |
80486SX/80487SX/80486DX/ODP486SX/80486DX2 |
|
Processor Speed |
16/20/25/33/50(internal)/50/66(internal)MHz |
|
Chip Set |
Symphony |
|
Max. Onboard DRAM |
64MB |
|
Cache |
64/256/1024KB |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit VESA local bus slots (2) |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Speaker |
J1 |
Turbo LED |
J4 |
|
Power LED & keylock |
J2 |
Turbo switch |
J5 |
|
Reset |
J3 |
32-bit VESA local bus slots |
S1 & S2 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
| » |
VESA I/O wait states select zero |
JP5 |
Open |
|
VESA I/O wait states select one |
JP5 |
Open | |
| » |
Factory configured - do not alter |
JP6 |
Closed |
| » |
VESA timing select T3 speed 16 - 33MHz) |
JP7 |
Closed |
|
VESA timing select T3 (speed 50MHz) |
JP7 |
Open | |
| » |
I/O wait states select zero |
JP10 |
Closed |
|
I/O wait states select one |
JP10 |
Open | |
| » |
Phase select X2 1 |
JP11 |
pins 2 & 3 closed |
|
Phase select X1 1 |
JP11 |
pins 1 & 2 closed | |
| » |
Phase select X2 1 |
JP12 |
pins 2 & 3 closed |
|
Phase select X1 1 |
JP12 |
pins 1 & 2 closed | |
| » |
Phase select X2 1 |
JP18 |
pins 2 & 3 closed |
|
Phase select X1 1 |
JP18 |
pins 1 & 2 closed | |
| » |
Phase select X2 1 |
JP19 |
pins 2 & 3 closed |
|
Phase select X1 1 |
JP19 |
pins 1 & 2 closed | |
| » |
Factory configured - do not alter |
JP13 |
Closed |
| » |
Factory configured - do not alter |
JP14 |
Closed |
|
Note: 1 Phase X1 is only used when an 80486DX2-50 CPU is installed. | |||
|
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 |
NONE |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
|
17MB |
(4) 256K x 9 |
(4) 4M 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 |
|
CACHE CONFIGURATION | |
|
Size |
Bank 0 |
|
64KB |
(8) 8K x 8 |
|
256KB |
(8) 32K x 8 |
|
1MB |
(8) 128K x 8 |
|
CACHE JUMPER CONFIGURATION | |||||
|
Size |
JP20 |
JP21 |
JP27 |
JP28 |
JP29 |
|
64KB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
256KB |
1 & 2 |
2 & 3 |
2 & 3 |
1 & 2 |
2 & 3 |
|
1MB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
Note:Pins designated should be in the closed position. | |||||
|
CPU TYPE CONFIGURATION | |||
|
Type |
JP15 |
JP16 |
JP17 |
|
80486SX |
Closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
ODP486SX |
Closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
80487SX |
Open |
Closed |
Open |
|
80486DX |
Closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
80486DX2 |
Closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
CPU SPEED CONFIGURATION | ||||
|
Speed |
JP3 |
JP4 |
JP8 |
JP9 |
|
16/20/25MHz |
Open |
Open |
Open |
Open |
|
33MHz |
pins 1 & 2 closed |
Open |
Open |
Open |
|
50MHz |
pins 2 & 3 closed |
Closed |
Closed |
Closed |