UNIDENTIFIED
3486U
Processor | 80386DX/80486SX/80487SX/80486DX/80486DX2 |
Processor Speed | 20/25/33/40/50(internal)/50/66(internal)MHz |
Chip Set | UNI |
Max. Onboard DRAM | 32MB |
Cache | 32/64/128/256KB |
BIOS | AMI |
Dimensions | 254mm x 218mm |
I/O Options | None |
NPU Options | 80387DX |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
External battery | J4 | Turbo LED | JP15 |
Power LED & keylock | J5 | Turbo switch | JP17 |
Speaker | J6 | Reset switch | JP18 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Monitor type select color | JP1 | Closed |
Monitor type select monochrome | JP1 | Open | |
» | CMOS memory normal operation | JP2 | pins 1 & 2 closed |
CMOS memory clear | JP2 | pins 2 & 3 closed | |
» | CPU type select all CPU types | JP3 | Closed |
CPU type select 80386DX only | JP3 | Open |
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 |
20MB | (4) 4M x 9 | (4) 1M x 9 |
32MB | (4) 4M x 9 | (4) 4M x 9 |
CACHE CONFIGURATION | |||
Size | Bank 0 | Bank 1 | TAG |
32KB | (4) 8K x 8 | NONE | (1) 8K x 8 |
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 | JP5 | JP6 | JP7 | JP8 |
32KB | Open | pins 2 & 3 closed | Open | Open |
64KB | Closed | pins 1 & 2 closed | Open | Open |
128KB | Closed | pins 1 & 2, 3 & 4 closed | Closed | Open |
256KB | Closed | pins 1 & 2, 4 & 5 closed | Closed | Closed |
CPU TYPE CONFIGURATION | ||||||
Type | JP4 | JP9 | JP10 | JP12 | JP14 | JP16 |
80386 | Open | 1 & 2 | 2 & 3 | 2 & 3 | Open | 2 & 3 |
80486 | Closed | 2 & 3 | 1 & 2 | 1 & 2 | 2 & 3 | 1 & 2 |
Note: Pins designated should be in the closed position. |
CPU TYPE CONFIGURATION | |
Type | JP13 |
80386DX | Open |
80486SX (PQFP) | Open |
80486SX (PGA) | pins 5 & 6, 9 & 10 closed |
80487SX | pins 2 & 3, 4 & 5, 6 & 7, 8 & 9 closed |
80486DX (PQFP) | Open |
80486DX (PGA) | pins 1 & 2, 4 & 5, 6 & 7, 9 & 10 closed |
80486DX2 | pins 1 & 2, 4 & 5, 6 & 7, 9 & 10 closed |