3.Turn your hard disk drive so the components are facing up and the connectors at the back of the drive are facing to the right. (See the illustration below.)
Place the flat side of the mounting plate on the hard disk drive, as shown below.
mounting plate holes
connectors
Align the four holes on the mounting plate with the four holes on the bottom of the hard diskdrive.
4.Locate the four screws that you removed from the 5 Wnch mounting frames and use them to secure the mounting plate to the hard disk drive.