6.Locate the hard disk drive ribbon cable that you removed from the drive in the vertical mounting position. Follow the instructions below to attach the connector on the end of this cable to the drive that will be mounted vertically.
As shown below, there are two rows of holes in the connector. One of the holes is blocked with a plastic plug.
n n n n n n n n n n n n n n n n n n n n
0 nmmmmmmmmQmmmmmmmmmm II
I
blocked hole
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.
Installing and Removing Disk Drives B - 3 7