YOUNG MICRO SYSTEMS, INC.
VEGA 486 GREEN AIO 2VLB
|
Processor |
80486SX/80486DX/80486DX2/80486DX4/Pentium Overdrive |
|
Processor Speed |
25/33/40/50(internal)/50/66(internal)MHz |
|
Chip Set |
Symphony |
|
Max. Onboard DRAM |
128MB |
|
Cache |
64/128/256/512/1024KB |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit VESA local bus slots (2), floppy drive interface, IDE interface, parallel port, PS/2 mouse connector, serial ports (2) |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Reset switch |
J1 |
Serial port 2 |
CN2 |
|
Speaker |
J2 |
IDE interface |
CN3 |
|
Turbo LED |
J3 |
Floppy drive interface |
CN4 |
|
Turbo switch |
J4 |
PS/2 mouse connector |
CN5 |
|
Power LED & keylock |
J5 |
Parallel port |
CN6 |
|
Resume connector |
J6 |
IDE interface LED |
IJ4 |
|
Serial port 1 |
CN1 |
32-bit VESA Local bus slots |
SL1 & SL2 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
» |
Factory configured - do not alter |
IJP1 |
Open |
|
» |
Factory configured - do not alter |
IJP2 |
Open |
|
» |
Factory configured - do not alter |
IJP3 |
Open |
|
» |
Factory configured - do not alter |
IW4/ 1 & 2 |
Open |
|
» |
Factory configured - do not alter |
IW4/ 3 & 4 |
Open |
|
» |
Factory configured - do not alter |
IW4/ 5 & 6 |
Open |
|
» |
Factory configured - do not alter |
IW4/ 7 & 8 |
Open |
|
» |
IDE interface enabled |
IW4/ 9 & 10 |
Open |
|
IDE interface disabled |
IW4/ 9 & 10 |
Closed | |
|
» |
Factory configured - do not alter |
JP9 |
Open |
|
» |
Factory configured - do not alter |
JP10 |
Open |
|
» |
Cache control select combined |
JP16 |
pins 1 & 2 closed |
|
Cache control select separate |
JP16 |
pins 2 & 3 closed | |
|
» |
Monitor type select color |
JP17 |
Closed |
|
Monitor type select monochrome |
JP17 |
Open | |
|
» |
BIOS type select regular |
JP18 |
pins 1 & 2 closed |
|
BIOS type select flash EPROM |
JP18 |
pins 2 & 3 closed | |
|
» |
Factory configured - do not alter |
JP22 |
Open |
|
» |
Factory configured - do not alter |
JP23 |
Open |
|
» |
Factory configured - do not alter |
JP24 |
Open |
|
» |
Factory configured - do not alter |
JP28 |
Open |
|
» |
Factory configured - do not alter |
JP29 |
Open |
|
» |
Factory configured - do not alter |
JP30 |
Open |
|
» |
Factory configured - do not alter |
JP31 |
Open |
|
» |
Factory configured - do not alter |
W1 |
Open |
|
» |
Factory configured - do not alter |
W2 |
Open |
|
» |
Factory configured - do not alter |
W3 |
Open |
|
» |
Factory configured - do not alter |
W4 |
Open |
|
» |
Factory configured - do not alter |
W5 |
Open |
|
» |
Factory configured - do not alter |
W6 |
Open |
|
» |
Parallel port IRQ select IRQ7 |
W11 |
pins 2 & 3 closed |
|
Parallel port IRQ select IRQ5 |
W11 |
pins 1 & 2 closed | |
|
» |
Factory configured - do not alter |
W12 |
Open |
|
» |
Onboard port select enabled |
WT1 |
Open |
|
Onboard port select disabled |
WT1 |
Closed | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
(1) 256K x 36 |
NONE |
NONE |
NONE |
|
4MB |
(1) 512K x 36 |
(1) 512K x 36 |
NONE |
NONE |
|
4MB |
(1) 1M x 36 |
NONE |
NONE |
NONE |
|
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
NONE |
|
8MB |
(1) 2M x 36 |
NONE |
NONE |
NONE |
|
16MB |
(1) 4M x 36 |
NONE |
NONE |
NONE |
|
16MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
NONE |
NONE |
|
32MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
|
64MB |
(1) 8M x 36 |
(1) 8M x 36 |
NONE |
NONE |
|
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
128MB |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
TAG (U1 & U2) |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(2) 8K x 8 |
|
128KB |
(4) 32K x 8 |
NONE |
(2) 8K x 8 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(2) 32K x 8 |
|
512KB |
(4) 128K x 8 |
NONE |
(2) 32K x 8 |
|
1MB |
(4) 128K x 8 |
(4) 128K x 8 |
(2) 128K x 8 |
|
CACHE JUMPER CONFIGURATION | |||||
|
Size |
JD1 |
JD2 |
JT1 |
JT2 |
JT3 |
|
64KB |
2 & 3 |
2 & 3 |
1 & 2 |
1 & 2 |
1 & 2 |
|
128KB |
1 & 2 |
1 & 2 |
2 & 3 |
1 & 2 |
1 & 2 |
|
256KB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
1 & 2 |
|
512KB |
1 & 2 |
1 & 2 |
2 & 3 |
2 & 3 |
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 |
JP1 |
JP2 |
JP4 |
JP5 |
JP6 |
JP11 |
P1 - P4 |
R2-1/4 |
|
486SX |
Open |
Open |
Open |
2 & 3 |
Closed |
Open |
Closed |
Open |
|
486SL |
Open |
Closed |
Open |
1 & 2 |
Closed |
1 & 2 |
Closed |
Closed |
|
486DX |
Open |
Open |
Open |
1 & 2 |
Closed |
1 & 2 |
Closed |
Open |
|
486DX4 |
Open |
Closed |
Open |
1 & 2 |
Closed |
2 & 3 |
Open |
Closed |
|
Overdrive |
Closed |
Closed |
Closed |
1 & 2 |
Open |
2 & 3 |
Open |
Closed |
|
Note: Pins designated should be in the closed position. | ||||||||
|
CPU SPEED CONFIGURATION | |||
|
Speed |
JP25 |
JP26 |
JP27 |
|
25MHz |
Closed |
Open |
Closed |
|
33MHz |
Open |
Open |
Closed |
|
40MHz |
Closed |
Closed |
Open |
|
50iMHz |
Closed |
Open |
Closed |
|
50MHz |
Open |
Closed |
Open |
|
66iMHz |
Open |
Open |
Closed |
|
VESA WAIT STATE/BUS SPEED CONFIGURATION | |||
|
CPU speed |
Wait states |
JP20 |
JP21` |
|
< 33MHz |
0 wait states |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
> 33MHz |
1 wait state |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
PARALLEL PORT CONFIGURATION | ||
|
Type |
W14 |
W15 |
|
Enhanced parallel port (EPP) mode |
Open |
pins 2 & 3 closed |
|
Standard mode |
Closed |
pins 1 & 2 closed |