If you do not correctly align the holes with the pins, you could severely damage your system board when you push in the cable connector.
Connecting the Drive and Power Cables to the Drive
Follow the steps below to connect the hard disk drive ribbon cable and a power supply cable to the drive:
1.Locate the free connector on the end of the hard disk drive ribbon cable.
2.Locate pin 1 on the drive connector. If you do not see it on the connector casing, turn the drive over so you can see the drive’s circuit board. You will see a 1 or 2 printed on the board to identify the side of the connector containing pin 1.
3.Align the connector on the cable so that the red wire will be closest to pin 1 on the drive.
4.Make sure the holes in the cable connector fit over all the
pins in the hard disk drive connector; then push in the
c o n n e c t o r .
5.Locate one of the power supply cables that lead from the power supply. (They have multicolored wires and a plastic connector on the end.)
installing and Removing Drives