YOUNG MICRO SYSTEMS, INC.
VEGA 3-486 CACHE
|
Processor |
80386DX/80486SX/80487SX/80486DX/ODP486SX/80486DX2 |
|
Processor Speed |
16/20/25/33/40/50/66(internal)MHz |
|
Chip Set |
Symphony |
|
Max. Onboard DRAM |
32MB |
|
Cache |
64/256KB |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80387 |
|
CONNECTIONS |
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|
Purpose |
Location |
Purpose |
Location |
|
Turbo switch |
C1 |
Power LED & keylock |
C4 |
|
Turbo LED |
C2 |
Speaker |
C5 |
|
Reset switch |
C3 |
|
|
|
DRAM CONFIGURATION |
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|
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 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
CACHE CONFIGURATION |
|
|
Size |
Bank 0 |
|
64KB |
(8) 8K x 8 |
|
256KB |
(8) 32K x 8 |
|
CACHE JUMPER CONFIGURATION |
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|
Size |
P26 |
P27 |
P31 |
|
64KB |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
256KB |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
CPU TYPE CONFIGURATION |
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|
Type |
P24 |
P25 |
P28 |
P30 |
P32 |
|
80386DX |
2 & 3 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
80486SX |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
80486DX-25 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
80486DX-33 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
80486DX-50 |
1 & 2 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
80486DX2-50 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
80486DX2-66 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
Note: Pins designated should be in the closed. |
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|
CPU TYPE CONFIGURATION (CON'T) |
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|
Type |
P33 |
P35 |
P36 |
P37 |
P38 |
|
80386DX |
1 & 2 |
Closed |
Closed |
Open |
Open |
|
80486SX |
2 & 3 |
Open |
Open |
Open |
Open |
|
80486DX-25 |
2 & 3 |
Open |
Open |
Open |
Open |
|
80486DX-33 |
2 & 3 |
Open |
Open |
Open |
Open |
|
80486DX-50 |
2 & 3 |
Open |
Open |
Closed |
Closed |
|
80486DX2-50 |
2 & 3 |
Open |
Open |
Open |
Open |
|
80486DX2-66 |
2 & 3 |
Open |
Open |
Open |
Open |
|
Note: Pins designated should be in the closed. |
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|
CPU TYPE CONFIGURATION (CON'T) |
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|
Type |
P39 |
P40 |
P41 |
P42 |
P43 |
P44 |
|
80386DX |
Closed |
N/A |
N/A |
N/A |
N/A |
1 & 2 |
|
80486SX |
Open |
Open |
Open |
Open |
Closed |
2 & 3 |
|
80486DX-25 |
Open |
Closed |
Closed |
Closed |
Open |
2 & 3 |
|
80486DX-33 |
Open |
Closed |
Closed |
Closed |
Open |
2 & 3 |
|
80486DX-50 |
Open |
Closed |
Closed |
Closed |
Open |
2 & 3 |
|
80486DX2-50 |
Open |
Closed |
Closed |
Closed |
Open |
2 & 3 |
|
80486DX2-66 |
Open |
Closed |
Closed |
Closed |
Open |
2 & 3 |
|
Note: Pins designated should be in the closed. |
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