UNIDENTIFIED
CHARISMA 286 MINI AT
| Processor | 80286 | 
| Processor Speed | 12MHz | 
| Chip Set | Unidentified | 
| Max. Onboard DRAM | 1MB | 
| Cache | None | 
| BIOS | Award | 
| Dimensions | 330mm x 218mm | 
| I/O Options | None | 
| NPU Options | 80287 | 
 
| CONNECTIONS | |||
| Purpose | Location | Purpose | Location | 
| Speaker | P1 | Power LED & keylock | P4 | 
| Turbo LED | P2 | External battery | P8 | 
| Reset switch | P3 | ||
| USER CONFIGURABLE SETTINGS | |||
| Function | Jumper/Switch | Position | |
| » | CPU speed select switchable at keyboard | J1 | pins 2 & 3 closed | 
| » | Power good signal detect from board | JP14 | pins 1 & 2 closed | 
| Power good signal detect from power supply | JP14 | pins 2 & 3 closed | |
| » | BIOS type select 27128 | J15 | pins 1 & 2 closed | 
| BIOS type select 27256 | J15 | pins 2 & 3 closed | |
| » | Monitor type select monochrome | SW1/6 | Off | 
| Monitor type select CGA or EGA | SW1/6 | On | |
| DRAM CONFIGURATION | ||
| Size | Bank 0 | Bank 1 | 
| 256KB | (18) 4164 | (18) 4164 | 
| 512KB | (18) 41256 | none | 
| 640KB | (18) 41256 | (18) 4164 | 
| 1MB | (18) 41256 | (18) 41256 | 
| DRAM SWITCH CONFIGURATION | ||
| Size | SW1/3 | SW1/4 | 
| 256KB | Closed | Closed | 
| 512KB | Open | Closed | 
| 640KB | Closed | Open | 
| 1MB | Open | Open | 
| DRAM WAIT STATE CONFIGURATION | ||
| Wait states | J2 | J8 | 
| 0 | Closed | Closed | 
| 1 | Open | Open | 
| CPU SPEED CONFIGURATION | |||
| Speed | J1 | J5 | J11 | 
| 6MHz | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2 closed | 
| 8MHz | pins 1 & 2 closed | pins 2 & 3 closed | pins 2 & 3 closed | 
| 10MHz | Open | pins 1 & 2 closed | pins 1 & 2 closed | 
| 12MHz | Open | pins 2 & 3 closed | pins 2 & 3 closed | 
| NPU SPEED CONFIGURATION | |||
| NPU speed | CPU speed | J6 | J7 | 
| 6MHz | 10MHz | pins 2 & 3 closed | Closed | 
| 6MHz | 8MHz | pins 2 & 3 closed | Closed | 
| 8MHz | 12MHz | pins 2 & 3 closed | Closed | 
| 10MHz | 10MHz | pins 1 & 2 closed | Open | 
| BATTERY CONFIGURATION | ||
| Type | J12 | J13 | 
| External alkaline (6V) | Open | Open | 
| External lithium (6V) | Open | pins 1 & 2 closed | 
| Internal double lithium (3V each) | pins 1 & 2 closed | Closed | 
| PROPRIETARY BUS CONFIGURATION | ||
| Bus mode | SW1/1 | SW1/2 | 
| 0 | On | On | 
| 1 | Off | On | 
| 2 | On | Off | 
| 3 | Off | Off |