NORTHGATE COMPUTER SYSTEMS, INC.
MB108
| 
 
  | |
| 
 Data bus:  | 
 16-bit, ISA  | 
| 
 Size:  | 
 Half-length, full-height card  | 
| 
 Hard drive supported:  | 
 Two IDE (AT) Interface drives  | 
| 
 Floppy drives supported:  | 
 Two 360KB, 720KB, 1.2MB, or 1.44MB drives  | 
| 
 CONNECTIONS  | |
| 
 Function  | 
 Location  | 
| 
 34-pin control cable connector - (reserved for future use)  | 
 J1  | 
| 
 34-pin control cable connector - floppy drive  | 
 J2  | 
| 
 4-pin connector - Drive active LED  | 
 J3  | 
| 
 40-pin IDE(AT) Interface connector  | 
 J6  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Location  | 
 Setting  | |
| » | 
 Hard drive Interrupt Request IRQ14 enabled  | 
 W21  | 
 closed  | 
| 
 Hard drive Interrupt Request IRQ14 disabled  | 
 W21  | 
 open  | |
| 
 HARD DRIVE PORT ADDRESS  | |||
| 
 Function  | 
 SW1/jumper 1  | 
 SW1/jumper 2  | |
| » | 
 Hard drive port address is 1F0-1F7h  | 
 closed  | 
 open  | 
| 
 Hard drive port address is 170-177h  | 
 open  | 
 closed  | |
| 
 FLOPPY DRIVE PORT ADDRESS  | |||
| 
 Function  | 
 SW1/jumper 1  | 
 SW1/jumper 2  | |
| » | 
 Floppy drive port address is 3F0-3F7h  | 
 closed  | 
 open  | 
| 
 Floppy drive port address is 370-377h  | 
 open  | 
 closed  | |
| 
 MISCELLANEOUS TECHNICAL NOTES  | 
| 
 Jumpers J4 (Drive-type 300Kb/sec) is factory configured to pins 2 & 3 closed - do not alter J5 (Pump/Precomp) is factory configured to pins 1 & 2 closed - do not alter.  |