JOINDATA SYSTEMS, INC.
G386B Version 2
| Processor | 80386DX | 
| Processor Speed | 20/25MHz | 
| Chip Set | UMC | 
| Max. onboard DRAM | 16MB | 
| Cache | None | 
| BIOS | AMI | 
| Dimensions | 330mm x 218mm | 
| I/O Options | 32-bit external memory card | 
| NPU Options | 80287/80387DX | 
 
| CONNECTIONS | |||
| Purpose | Location | Purpose | Location | 
| Reset switch | JP2 | Speaker | JP6 | 
| Turbo LED | JP1 | Power LED & keylock | JP7 | 
| Turbo switch | JP3 | 32-bit external memory card | S1 | 
| Unknown | JP4 | ||
| USER CONFIGURABLE SETTINGS | |||
| Function | Jumper/Switch | Position | |
| » | Monitor type select color | W11 | Closed | 
| Monitor type select monochrome | W11 | Open | |
| DRAM CONFIGURATION | ||||
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | 
| 2MB | (36) 41256 | (36) 41256 | NONE | NONE | 
| 8MB | (36) 411000 | (36) 411000 | NONE | NONE | 
| 16MB | (36) 411000 | (36) 411000 | (36) 411000 | (36) 411000 | 
| Note:Banks 2 and 3 are located on the external memory card. | ||||
| NPU CONFIGURATION | ||
| NPU | JP9 | JP10 | 
| 80287 | pins 2 & 3 closed | Open | 
| 80387 | pins 1 & 2 closed | Closed | 
| Not installed | Open | Open | 
 
| DRAM JUMPER CONFIGURATION | ||||
| System Memory | J1A | J1B | J2A | J2B | 
| 0KB | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2 closed | 
| 2MB | pins 2 & 3 closed | pins 2 & 3 closed | pins 2 & 3 closed | pins 2 & 3 closed | 
| 8MB | pins 2 & 3 closed | pins 2 & 3 closed | pins 2 & 3 closed | pins 2 & 3 closed |