JC INFORMATION SYSTEMS CORPORATION
386DX WBC 2025
Processor | 80386DX |
Processor Speed | 25/33MHz |
Chip Set | OPTI |
Max. Onboard DRAM | 32MB |
Cache | 64KB |
BIOS | AMI |
Dimensions | 330mm x 218mm |
I/O Options | 32-bit external memory card slot |
NPU Options | 80387/3167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Turbo switch | J5 | External battery | J10 |
Reset switch | J6 | Turbo LED | JP4 |
Speaker | J7 | 32-bit external memory card | S1 |
Power LED & keylock | J8 |
USER CONFIGURABLE SETTINGS | ||||
Function | Jumper | Position | ||
» | Monitor type select color | JP1 | Closed | |
Monitor type select monochrome | JP1 | Open | ||
» | CMOS memory normal operation | JP2 | pins 2 & 3 closed | |
CMOS memory clear | JP2 | pins 1 & 2 closed | ||
» | Factory configured - do not alter | JP3 | Closed | |
» | Factory configured - do not alter | JP5 | pins 2 & 3 closed | |
» | Factory configured - do not alter | JP6 | pins 1 & 2 closed | |
» | Factory configured - do not alter | JP7 | pins 1 & 2 closed | |
» | Factory configured - do not alter | JP8 | pins 1 & 2 closed | |
» | Factory configured - do not alter | JP9 | pins 2 & 3 closed | |
» | Factory configured - do not alter | JP10 | pins 1 & 2 closed | |
Note : The locations of jumpers JP3, JP5, JP6, JP7, JP8, JP9 and JP10 are unidentified. |
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) 1 M x 9 | (4) 256K x 9 |
8MB | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE |
32MB | (4) 4M x 9 | (4) 4M x 9 |
CACHE CONFIGURATION | |||
Size | Bank 0 | TAG (U1) | TAG (U2 & U3) |
64KB | (8) 8K x 8 | (1) 16K x 4 | (2) 4K x 4 |