WINTOWER 486PC Motherboard Settings and Configuration
LEADING EDGE PRODUCTS, INC.
WINTOWER 486PC
Processor | 80486SX/80486DX/80486DX2 |
Processor Speed | 25/33/50(internal)/66(internal)MHz |
Chip Set | UMC |
Max. Onboard DRAM | 64MB |
Cache | 64/128/256KB |
BIOS | Phoenix |
Dimensions | 355mm x 304mm |
I/O Options | 32-bit VESA local bus slots (2), IDE interface, PS/2 mouse port |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
IDE interface | CN1 | 32-bit VESA Local bus slot | S1 |
PS/2 mouse style | CN2 | 32-bit VESA Local bus slot | S2 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Factory configured - do not alter | JP1 | N/A |
» | Factory configured - do not alter | JP6 | N/A |
» | Parallel port interrupt select IRQ7 | JP3 | pins 1 & 2 closed |
| Parallel port interrupt select IRQ5 | JP3 | pins 2 & 3 closed |
» | CMOS memory normal operation | JP4 | pins 1 & 2 closed |
| CMOS memory clear | JP4 | pins 2 & 3 closed |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
4MB | (1) 1M x 36 | NONE |
8MB | (1) 1M x 36 | (1) 1M x 36 |
12MB | (1) 2M x 36 | (1) 1M x 36 |
16MB | (1) 2M x 36 | NONE |
16MB | (1) 2M x 36 | (1) 2M x 36 |
16MB | (1) 4M x 36 | NONE |
20MB | (1) 4M x 36 | NONE |
32MB | (1) 4M x 36 | (1) 4M x 36 |
32MB | (1) 8M x 36 | NONE |
36MB | (1) 1M x 36 | (1) 8M x 36 |
64MB | (1) 8M x 36 | (1) 8M x 36 |
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 | SW1/switch 1 | SW1/switch 2 | SW1/switch 3 | SW1/switch 4 |
64KB | Off | Off | Off | Off |
128KB | Off | On | Off | On |
256KB | On | On | On | Off |
CPU TYPE CONFIGURATION | |
Type | JP5 |
80486SX | pins 2 & 3 closed |
80486DX | pins 1 & 2 and 3 & 4 closed |
ODP486SX | pins 1 & 2 and 3 & 4 closed |
80486DX2 | pins 1 & 2 and 3 & 4 closed |
CPU SPEED CONFIGURATION | ||
Speed | JP8 | JP9 |
25MHz | pins 1 & 2 closed | pins 1 & 2 closed |
33MHz | pins 2 & 3 closed | pins 2 & 3 closed |
50iMHz | pins 1 & 2 closed | pins 1 & 2 closed |
66iMHz | pins 2 & 3 closed | pins 2 & 3 closed |
VESA WAIT STATE/BUS SPEED CONFIGURATION | ||
CPU speed | Wait states | JP7 |
£ 33MHz | 0 wait states | Open |
> 33MHz | 1 wait state | Closed |
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