3486UC-L4-U3 Motherboard Settings and Configuration
EFA CORPORATION
3486UC-L4-U3
Processor | 80386DX/80486SX/80486DX |
Processor Speed | 16/20/25/33/40/50(internal)/50MHz |
Chip Set | UMC |
Max. Onboard DRAM | 32MB |
Cache | 64/128/256KB |
BIOS | AMI |
Dimensions | 330mm x 218mm |
I/O Options | None |
NPU Options | 4167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Speaker | J2 | Turbo LED | J16 |
External battery | J4 | Power LED & keylock | J18 |
Reset switch | J15 | Speaker | J19 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Monitor type select color | J9 | pins 2 & 3 closed |
| Monitor type select monochrome | J9 | pins 1 & 2 closed |
» | Turbo switch enabled | J17 | Open |
| Turbo switch normal operation | J17 | 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 |
5MB | (4) 256K x 9 | (4) 1M x 9 |
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) 32K x 8 |
256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
CACHE JUMPER CONFIGURATION | |||||
Size | J1 | J2 | J3 | J13 | J14 |
64KB | pins 2 & 3 | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 | N/A |
128KB | pins 2 & 3 | pins 2 & 3 | pins 1 & 2 | pins 2 & 3 | pins 1 & 2 |
256KB | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 | pins 1 & 2 | pins 2 & 3 |
Note:Pins designated should be in the closed position. | |||||
CPU TYPE CONFIGURATION | ||||
Type | SW1/switch 1 | SW1/switch 2 | SW1/switch 3 | SW1/switch 4 |
80386DX | On | On | Off | Off |
80486SX | Off | Off | On | On |
80486DX | On | On | Off | Off |
CPU TYPE CONFIGURATION (CONT.) | ||||||||
Type | SW2/1 | SW2/2 | SW2/3 | SW2/4 | SW2/5 | SW2/6 | SW2/7 | SW2/8 |
80386DX | On | On | On | On | Off | Off | On | On |
80486SX | Off | Off | Off | Off | On | On | On | Off |
80486DX | Off | Off | Off | Off | On | On | On | Off |
CPU SPEED CONFIGURATION | ||||
Speed | SW3/switch 1 | SW3/switch 2 | SW3/switch 3 | SW3/switch 4 |
16MHz | On | Off | On | On |
20MHz | On | Off | On | Off |
25MHz | On | Off | Off | Off |
33MHz | On | Off | Off | On |
40MHz | Off | On | Off | On |
50i MHz | On | Off | Off | Off |
50MHz | Off | On | Off | Off |
My Books
