VEGA 3-486 CACHE Motherboard Settings and Configuration
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 | |||
Purpose | Location | Purpose | Location |
Turbo switch | C1 | Power LED & keylock | C4 |
Turbo LED | C2 | Speaker | C5 |
Reset switch | C3 |
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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 |
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 | |||
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 | |||||
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. | |||||
CPU TYPE CONFIGURATION (CON'T) | |||||
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. | |||||
CPU TYPE CONFIGURATION (CON'T) | ||||||
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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