JC INFORMATION SYSTEMS CORPORATION
HIGH PERFORMANCE 386 (NON-CACHE)
Processor | 80386DX |
Processor Speed | 20/25MHz |
Chip Set | C & T |
Max. Onboard DRAM | 8MB |
Cache | None |
BIOS | Phoenix |
Dimensions | 330mm x 218mm |
I/O Options | 32-bit external memory card slot |
NPU Options | 80387/3167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Speaker | J1 | Turbo LED | J4 |
Reset switch | J2 | External battery | J9 |
Power LED & keylock | J3 | 32-bit external memory card | S1 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Battery select internal | J9 | pins 3 & 4 closed |
Battery select external | J9 | Closed | |
» | Monitor type select color | JP1 | Closed |
Monitor type select monochrome | JP1 | Open | |
» | NPU disabled | JP2 | Open |
NPU enabled | JP2 | pins 1 & 2, 3 & 4 closed | |
» | Factory configured - do not alter | JP3 | N/A |
DRAM CONFIGURATION | |||
Size | Bank 0 | P-0 | Bank 1 |
1MB | (8) 44256 | (4) 41256 | NONE |
1MB | NONE | NONE | (4) 256K x 9 |
2MB | (8) 44256 | (4) 41256 | (4) 256K x 9 |
4MB | (8) 441000 | (4) 411000 | NONE |
4MB | NONE | NONE | (4) 1M x9 |
5MB | (8) 441000 | (4) 411000 | (4) 256K x 9 |
5MB | (8) 44256 | (4) 41256 | (4) 1M x9 |
8MB | (8) 441000 | (4) 411000 | (4) 1M x9 |
DRAM JUMPER CONFIGURATION | |||
Function | JP4 | JP6 | JP7 |
Bank 0 as DIPP memory | pins 1 & 2 closed | pins 3 & 4 closed | pins 2 & 3 closed |
Bank 0 as SIMM memory | pins 3 & 4 closed | pins 1 & 2 closed | pins 1 & 2 closed |
Note : When using both DIPP & SIMM together, the DIPPs must be set as Bank 0. |