3.Locate one of the power supply cables that lead from the power supply in the computer (behind the horizontal drive bays). The cables are labeled P1, P2, and P3; you can use any one. As shown below, the end of the connector has two notched corners.
power supply socket
notched corners
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The power supply socket is on the back of the hard disk drive, next to the cable you just connected. The socket also has two notched corners, as shown above.
Align the connector with the socket so that the notched corners on the connector line up with the notched corners of the socket.
notched corners
notched corners
Installing and Removing Disk Drives | B - 1 5 |