7.Pick up the hard disk drive that you removed from the vertical mounting position. Notice the ribbon cable socket on the back of the drive; you see two rows of pins. In one of the rows, a pin is missing.

missing pin

Align the connector with the socket so that the row in the connector with the blocked hole lines up with the row in the socket with the missing pin, as shown below.

Make sure the holes fit over all the pins and then push the connector onto the pins.

Installing and Removing Disk Drives

B-39