WESTERN DIGITAL CORPORATION
WD1003A-WA2
| 
 Chipset  | 
 Western Digital  | 
| 
 Data Bus  | 
 16-bit ISA  | 
| 
 Card Size  | 
 Full height, full length  | 
| 
 Hard Drives Supported  | 
 Two ST506/412(MFM) devices  | 
| 
 Floppy Drives Supported  | 
 Two 360KB or 1.2MB drives  | 
| 
 CONNECTIONS  | |||
| 
 Function  | 
 Label  | 
 Function  | 
 Label  | 
| 
 2-pin drive active LED  | 
 J1  | 
 34-pin control cable connector - hard drive  | 
 J4  | 
| 
 20-pin data cable connector - drive 2  | 
 J2  | 
 34-pin cable connector - floppy drive  | 
 J5  | 
| 
 20-pin data cable connector - drive 1  | 
 J3  | ||
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Setting  | 
 Label  | 
 Position  | |
| » | 
 Factory configured - do not alter  | 
 W1  | 
 Pins 1 & 2 closed  | 
| » | 
 Factory configured - do not alter  | 
 W2/A  | 
 Open  | 
| » | 
 Factory configured - do not alter  | 
 W2/B  | 
 Open  | 
| » | 
 Factory configured - do not alter  | 
 W2/C  | 
 Open  | 
| » | 
 RWC-NOT signal enabled  | 
 W5  | 
 Pins 1 & 2 closed  | 
| 
 RWC-NOT signal disabled, HS3-NOT signal enabled  | 
 W5  | 
 Pins 2 & 3 closed  | |
| » | 
 Factory configured - do not alter  | 
 W6  | 
 Unidentified  | 
| » | 
 Factory configured - do not alter  | 
 W7  | 
 Open  | 
| 
 Note:W6 may not be present on all versions of this board.  | |||
| 
 HARD DRIVE 1 TYPE SELECTION  | ||
| 
 Setting  | 
 W3  | |
| » | 
 Standard  | 
 Pins 1 & 2 closed  | 
| 
 SyQuest  | 
 Pins 1 & 2 open  | |
| 
 HARD DRIVE 2 TYPE SELECTION  | ||
| 
 Setting  | 
 W3  | |
| » | 
 Standard  | 
 Pins 3 & 4 closed  | 
| 
 SyQuest  | 
 Pins 3 & 4 open  | |
| 
 HARD DRIVE ADDRESS SELECTION  | ||
| 
 Setting  | 
 W4  | |
| » | 
 Primary  | 
 Pins 3 & 5 closed  | 
| 
 Secondary  | 
 Pins 1 & 3 closed  | |
| 
 FLOPPY DRIVE ADDRESS SELECTION  | ||
| 
 Setting  | 
 W4  | |
| » | 
 Primary  | 
 Pins 4 & 6 closed  | 
| 
 Secondary  | 
 Pins 2 & 4 closed  | |