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. | |||