UNIDENTIFIED
U386
Processor | 80386DX |
Processor Speed | 33/40MHz |
Chip Set | OPTI |
Max. Onboard DRAM | 32MB |
SRAM Cache | 32/128KB |
BIOS | AMI |
Dimensions | 220mm x 220mm |
I/O Options | NONE |
NPU Options | 80387 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
External battery | J1 | Reset switch | J4 |
Turbo LED | J2 | Speaker | J5 |
Turbo switch | J3 | Power LED & keylock | J6 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | CMOS memory normal operation | W1 | closed |
CMOS memory clear | W1 | open | |
» | Monitor type select color | W2 | closed |
Monitor type select monochrome | W2 | open | |
» | NPU disabled | W4 | open |
NPU enabled | W4 | closed | |
» | Parity check enabled | W16 | pins 2 & 3 closed |
Parity check disabled | W16 | pins 1 & 2 closed |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
1MB | (4) 256K x 9 | NONE |
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) 4M x 9 | (4) 1M x 9 |
32MB | (4) 4M x 9 | (4) 4M x 9 |
SRAM JUMPER CONFIGURATION | ||
Jumper | 32KB | 128KB |
W8 | pins 1 & 2 closed | pins 2 & 3 closed |
W9 | pins 1 & 2 closed | pins 2 & 3 closed |
W10 | pins 1 & 2 closed | pins 2 & 3 closed |
W11 | pins 1 & 2 closed | pins 2 & 3 closed |
W12 | pins 2 & 3 closed | pins 2 & 3 closed |
W13 | pins 1 & 2 closed | pins 1 & 2 closed |
W14 | pins 1 & 2 closed | pins 1 & 2 closed |
W15 | open | pins 1 & 2 closed |
SRAM CONFIGURATION | ||
Size | Cache SRAM | TAG |
32KB | (4) 8K x 8 | (1) 8K x 8 |
128KB | (4) 32K x 8 | (1) 8K x 8 |