Guide the front of the subassembly over the opening in the front of the computer so the two small tabs sit behind the opening and the large tab with the curved lip extends over the opening. If necessary, press on the large tab until the subassembly snaps into place.
6.Locate the hard disk drive and diskette drive ribbon cables. (The hard disk drive cable is slightly wider than the diskette drive cable.) Look at the back of each drive to make sure you know which cable is which.