INFORMTECH INTERNATIONAL, INC.
286/SUPRA (MODEL C)
| Processor | 80286 | 
| Processor Speed | 6/8/10/12/16/20MHz | 
| Chip Set | C & T | 
| Max. Onboard DRAM | 2MB | 
| SRAM Cache | None | 
| BIOS | Award | 
| Dimensions | 330mm x 218mm | 
| I/O Options | 16-bit external memory card slot, auxillary keyboard connector | 
| NPU Options | 80287 | 
 
| CONNECTIONS | |||
| Purpose | Location | Purpose | Location | 
| Auxiliary keyboard | J9 | Power LED & keylock | P5 | 
| Turbo LED | P2 | External battery | P8 | 
| Speaker | P3 | 16-bit external memory card | S1 | 
| Reset switch | P4 | ||
| USER CONFIGURABLE SETTINGS | |||
| Function | Jumper/Switch | Position | |
| BIOS type select 27256 | J4 | pins 2 & 3 closed | |
| BIOS type select 27128 | J4 | pins 1 & 2 closed | |
| » | Keyboard controller clock speed select 6MHz | J5 | pins 1 & 2 closed | 
| Keyboard controller clock speed select 12MHz | J5 | pins 2 & 3 closed | |
| Battery type select Alkaline 4.5VDC | J7 | closed | |
| Battery type select Lithium 6VDC | J7 | open | |
| » | Power good signal detect from power supply | J8 | pins 2 & 3 closed | 
| Power good signal detect from board | J8 | pins 1 & 2 closed | |
| Monitor type select color | SW1/Switch 3 | closed | |
| Monitor type select monochrome | SW1/Switch 3 | open | |
| CPU SPEED/BUS CLOCK CONFIGURATION | ||||||
| 
 CPU Speed | AT Bus Speed | 
 J2 | 
 J3 | 
 J10 | 
 J13 | 
 J14 | 
| 20MHz | 8MHz | pins 1 & 2 | pins 1 & 2 | pins 2 & 3 | open | open | 
| 20MHz | 10MHz | N/A | pins 1 & 2 | pins 2 & 3 | closed | open | 
| 20MHz | 12MHz | pins 2 & 3 | pins 1 & 2 | pins 2 & 3 | open | open | 
| 16MHz | 8MHz | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 | open | open | 
| 16MHz | 12MHz | pins 2 & 3 | pins 1 & 2 | pins 1 & 2 | open | open | 
| 12MHz | 6MHz | N/A | pins 2 & 3 | N/A | closed | open | 
| 12MHz | 8MHz | pins 1 & 2 | pins 2 & 3 | N/A | open | open | 
| 12MHz | 12MHz | pins 2 & 3 | N/A | N/A | open | closed | 
| 10MHz | 10MHz | N/A | pins 1 & 2 | pins 2 & 3 | closed | closed | 
| 8MHz | 8MHz | pins 1 & 2 | N/A | N/A | open | closed | 
| 6MHz | 6MHz | N/A | pins 2 & 3 | N/A | closed | closed | 
| Note:Pins designated should be in the closed position. | ||||||
| NPU CLOCK RATE CONFIGUARATION | |||
| NPU | Clock Rate | SW1/Switch 1 | SW1/Switch 2 | 
| 80287-8 | 6MHz | closed | closed | 
| 80287-8 | 8MHz | open | closed | 
| 80287-10 | 10MHz | closed | open | 
| 80287-12 | 12MHz | open | open | 
| DRAM CONFIGURATION | ||||
| Size | Bank 0 | Bank 1 | J11 | J12 | 
| 512KB | (18) 41256 | NONE | open | open | 
| 1MB | (18) 41256 | (18) 41256 | closed | open | 
| 2MB | (18) 411000 | NONE | open | closed | 
| 4MB | (18) 411000 | (18) 411000 | closed | closed |