80486EISA (VERSION 1.0) Motherboard Settings and Configuration
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80486EISA (VERSION 1.0)
Processor | 80486DX |
Processor Speed | 25/33MHz |
Chip Set | Intel |
Max. Onboard DRAM | 64MB |
SRAM Cache | 64/256KB |
BIOS | Award |
Dimensions | 355.6mm x 304.8mm |
I/O Options | None |
NPU Options | 4167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Reset switch | W1 | Power LED & keylock | W5 |
Turbo LED | W2 | Speaker | W6 |
Turbo switch | W3 | External battery | W10 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» |
Cache select 64KB | W8 W9 W11 | pins 1 & 2 closed pins 1 & 2 closed pins 1 & 2 closed |
» |
Cache select 256KB | W8 W9 W11 | pins 2 & 3 closed pins 2 & 3 closed pins 2 & 3 closed |
SRAM CONFIGURATION | |
Size | Cache SRAM |
64KB | (8) 8K x 8 |
256KB | (8) 32K x 8 |
DRAM SWITCH CONFIGURATION | |||||
Size | SW1/switch 1 | SW1/switch 2 | SW1/switch 3 | SW1/switch 4 | SW1/switch 5 |
1MB | open | open | open | open | open |
2MB | closed | open | open | open | open |
3MB | open | closed | open | open | open |
4MB | closed | closed | open | open | open |
4MB | open | open | closed | open | open |
5MB | open | open | closed | closed | open |
6MB | open | closed | open | closed | open |
7MB | closed | open | open | closed | open |
8MB | closed | open | closed | open | open |
9MB | open | closed | closed | closed | open |
10MB | closed | closed | open | closed | open |
12MB | open | closed | closed | open | open |
13MB | closed | closed | closed | closed | open |
16MB | closed | closed | closed | open | open |
16MB | open | open | open | open | closed |
32MB | open | open | closed | open | closed |
48MB | open | open | open | closed | closed |
64MB | open | open | closed | closed | closed |
DRAM CONFIGURATION | ||||
Size | Bank 1 | Bank 2 | Bank 3 | Bank 4 |
1MB | (4) 256K x 9 | NONE | NONE | NONE |
2MB | (4) 256K x 9 | (4) 256K x 9 | NONE | NONE |
3MB | (4) 256K x 9 | (4) 256K x 9 | (4) 256K x 9 | NONE |
4MB | (4) 256K x 9 | (4) 256K x 9 | (4) 256K x 9 | (4) 256K x 9 |
4MB | (4) 1M x 9 | NONE | NONE | NONE |
5MB | (4) 256K x 9 | (4) 1M x 9 | NONE | NONE |
6MB | (4) 256K x 9 | (4) 256K x 9 | (4) 1M x 9 | NONE |
7MB | (4) 256K x 9 | (4) 256K x 9 | (4) 256K x 9 | (4) 1M x 9 |
8MB | (4) 1M x 9 | (4) 1M x 9 | NONE | NONE |
9MB | (4) 256K x 9 | (4) 1M x 9 | (4) 1M x 9 | NONE |
10MB | (4) 256K x 9 | (4) 256K x 9 | (4) 1M x 9 | (4) 1M x 9 |
12MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | NONE |
13MB | (4) 256K x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE | NONE | NONE |
16MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
32MB | (4) 4M x 9 | (4) 4M x 9 | NONE | NONE |
48MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | NONE |
64MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 |
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