UNIDENTIFIED
80486L-ISA
Processor | 80486SX/80487SX/80486DX/ODP486SX/80486DX2 |
Processor Speed | 20/25/33/50(internal)/50/66(internal)MHz |
Chip Set | SIS |
Max. Onboard DRAM | 32MB |
Cache | 64/128/256KB |
BIOS | AMI/Award |
Dimensions | 254mm x 218mm |
I/O Options | 32-bit local bus card slot |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
32-bit local bus card | CN1 | Reset switch | JP13 |
External battery | JP1 | Power LED & keylock | JP14 |
Speaker | JP11 | Turbo LED | JP15 |
Turbo switch | JP12 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Monitor type select color | JP3 | Open |
Monitor type select monochrome | JP3 | Closed |
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 |
8MB | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE |
20MB | (4) 1M x 9 | (4) 4M x 9 |
32MB | (4) 4M x 9 | (4) 4M x 9 |
CACHE CONFIGURATION | |||
Size | Bank 0 | Bank 1 | TAG |
64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 |
128KB | (4) 32K x 8 | NONE | (1) 8K x 8 |
256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
CACHE JUMPER CONFIGURATION | ||
Size | JP6 | JP7 |
64KB | Open | Open |
128KB | pins 1 & 2 closed | Closed |
256KB | pins 2 & 3 closed | Closed |
CPU TYPE CONFIGURATION | |||||
Type | Speed | Oscillator | JP4 | JP8 | JP9 |
80486SX | 16MHz | 32MHz | 1 & 2 | Open | 2 & 3 |
80486SX | 20MHz | 40MHz | 1 & 2 | Open | 2 & 3 |
ODP486SX | 50MHz | 25MHz | 2 & 3 | 1 & 2 | 1 & 2, 3 & 4 |
80487SX | 25MHz | 25MHz | 2 & 3 | 1 & 2 | 1 & 2, 3 & 4 |
80486DX | 25MHz | 25MHz | 2 & 3 | 2 & 3 | 1 & 2, 3 & 4 |
80486DX | 33MHz | 33MHz | 2 & 3 | 2 & 3 | 1 & 2, 3 & 4 |
80486DX | 50MHz | 50MHz | 2 & 3 | 2 & 3 | 1 & 2, 3 & 4 |
80486DX2 | 50MHz | 25MHz | 2 & 3 | 2 & 3 | 1 & 2, 3 & 4 |
80486DX2 | 66MHz | 33MHz | 2 & 3 | 2 & 3 | 1 & 2, 3 & 4 |
Note:The location of JP4 is unidentified. Pins designated should be in the closed position. |