UNIDENTIFIED
PMS486DS
Processor | 80486DX |
Processor Speed | 20/25/33/50MHz |
Chip Set | OPTI |
Max. Onboard DRAM | 32MB |
Cache | 64/128/256/512KB |
BIOS | AMI |
Dimensions | 330.2mm x 218.4mm |
I/O Options | None |
NPU Options | 4167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
External battery | J3 | Speaker | J18 |
Turbo switch | J16 | Power LED & keylock | J19 |
Reset switch | J17 | Turbo LED | J20 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | CMOS memory normal operation | J4 | pins 2 & 3 closed |
CMOS memory clear | J4 | pins 1 & 2 closed | |
» | Monitor type select color | J5 | closed |
Monitor type select monochrome | J5 | open | |
» | CPU speed select iOSC/2 | J9 | pins 2 & 3 closed |
CPU speed select iOSC | J9 | pins 1 & 2 closed | |
Bus speed select ATCLK/6 | J10 | closed | |
Bus speed select ATCLK/4 | J10 | 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 |
17MB | (4) 256K x 9 | (4) 4M x 9 |
20MB | (4) 1M x 9 | (4) 4M x 9 |
32MB | (4) 4M x 9 | (4) 4M x 9 |
CACHE CONFIGURATION | ||||
Size | Cache CACHE | Location | TAG (U42) | TAG (U55) |
64KB | (8) 8K x 8 | Bank 0 | (1) 64K x 1 | (1) 8K x 8 |
128KB | (16) 8K x 8 | Banks 0 & 1 | (1) 64K x 1 | (1) 8K x 8 |
256KB | (8) 32K x 8 | Bank 0 | (1) 64K x 1 | (1) 32K x 8 |
512KB | (16) 32K x 8 | Banks 0 & 1 | (1) 64K x 1 | (1) 32K x 8 |
CACHE JUMPER CONFIGURATION | |||||
Size | J11 | J12 | J13 | J14 | J15 |
64KB | open | open | open | open | pins 2 & 3 closed |
128KB | open | open | closed | closed | pins 2 & 3 closed |
256KB | open | closed | closed | closed | pins 2 & 3 closed |
512KB | closed | closed | closed | closed | pins 1 & 2 closed |
CPU JUMPER CONFIGURATION | |||
CPU | J6 | J7 | J8 |
80486DX | pins 1 & 2 closed | closed | pins 2 & 3 closed |
80487SX | pins 2 & 3 closed | closed | pins 2 & 3 closed |
80486SX | open | open | pins 1 & 2 closed |