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# WESTERN DIGITAL CORPORATION
WD1003V-SM1, WD1003V-SM2
Chipset Western Digital
Data Bus 16-bit ISA
Card Size Full height, three-quarters length
Hard Drives Two ST506/412(MFM) devices
Supported
Floppy Drives Two 360KB, 720KB, 1.2MB, or 1.44MB drives
Supported (WD1003V-SM2 only)
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|----------------------+-------+---------------------+-------|
| 34-pin cable | J1 | 34-pin control | J5 |
| connector - floppy | | cable connector - | |
| drive | | hard drive | |
|----------------------+-------+---------------------+-------|
| 20-pin data cable | J3 | 4-pin drive active | J6 |
| connector - drive 2 | | LED | |
|----------------------+-------+---------------------+-------|
| 20-pin data cable | J4 | | |
| connector - drive 1 | | | |
|------------------------------------------------------------|
| Note:J1 is not present on WD1003V-SM1 cards. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|-----------------------------------------+-------+----------|
| » | Hard drives in latched mode | W1/A | Open |
|---+-------------------------------------+-------+----------|
| | Hard drives in non-latched mode | W1/A | Closed |
|---+-------------------------------------+-------+----------|
| » | Factory configured - do not alter | W1/B | Open |
|---+-------------------------------------+-------+----------|
| » | Hard drive caching enabled | W1/C | Open |
|---+-------------------------------------+-------+----------|
| | Hard drive caching disabled | W1/C | Closed |
|---+-------------------------------------+-------+----------|
| » | Factory configured - do not alter | W2 | Open |
|---+-------------------------------------+-------+----------|
| » | Hard drive interface uses primary | W3 | Open |
| | I/O address | | |
|---+-------------------------------------+-------+----------|
| | Hard drive interface uses secondary | W3 | Closed |
| | I/O address | | |
|---+-------------------------------------+-------+----------|
| » | Floppy drive interface uses primary | W4 | Open |
| | I/O address | | |
|---+-------------------------------------+-------+----------|
| | Floppy drive interface uses | W4 | Closed |
| | secondary I/O address | | |
|---+-------------------------------------+-------+----------|
| » | Single speed floppy drives attached | W5 | Open |
| | to card | | |
|---+-------------------------------------+-------+----------|
| | Dual speed floppy drives attached | W5 | Closed |
| | to card | | |
|---+-------------------------------------+-------+----------|
| » | Signal ground not connected to | W6 | Open |
| | chassis ground | | |
|---+-------------------------------------+-------+----------|
| | Signal ground connected to chassis | W6 | Closed |
| | ground | | |
+------------------------------------------------------------+