UNIDENTIFIED
HD/FD CONTROLLER
| 
 Card Type  | 
 Hard drive controller card  | 
| 
 Hard Drives supported  | 
 Two ST-506/412(MFM) drives  | 
| 
 Floppy drives supported  | 
 Two 360KB, 720KB, 1.2MB, or 1.44MB drives  | 
| 
 Data Bus  | 
 16-bit ISA  | 
| 
 Card Size  | 
 Half-length, half-height card  | 
| 
 CONNECTIONS  | |||
| 
 Function  | 
 Location  | 
 Function  | 
 Location  | 
| 
 34-pin control cable connector - hard drive  | 
 J1  | 
 34-pin cable connector - floppy drive  | 
 J4  | 
| 
 20-pin data cable connector - drive 1  | 
 J2  | 
 Unidentified  | 
 J5  | 
| 
 20-pin data cable connector - drive 2  | 
 J3  | ||
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Label  | 
 Position  | |
| » | 
 Factory configured - (DACK2 enabled)  | 
 W5  | 
 Closed  | 
| » | 
 Hard drive I/O address is 1FXh  | 
 W6  | 
 Open  | 
| 
 Hard drive I/O address is 17Xh  | 
 W6  | 
 Closed  | |
| » | 
 Floppy drive I/O address is 3FXh  | 
 W9  | 
 Open  | 
| 
 Floppy drive I/O address is 37Xh  | 
 W9  | 
 Closed  | |
| » | 
 Floppy drive interface enabled  | 
 W10  | 
 Open  | 
| 
 Floppy drive interface disabled  | 
 W10  | 
 Closed  | |
| » | 
 Hard drive interface enabled  | 
 W11  | 
 Open  | 
| 
 Hard drive interface disabled  | 
 W11  | 
 Closed  | |