4.Position power supply connector P4 so that the large tab on the connector faces the right side of the computer. Beginning with the six pins in the socket toward the back of the computer, carefully line up the holes in the connector with the pins in the socket. Make sure the holes fit over all the pins and then push the connector onto the pins.
CautionIf you do not correctly align the holes with the pins in the socket, you could severely damage your computer when you push in the connector.
5.Connect power supply connector P5 to the remaining six pins in the socket using the same procedure.
6.Still holding up the subassembly, locate the hard disk drive and diskette drive ribbon cables. (The hard disk drive cable is slightly wider than the diskette drive cable.) Check the back of the drives to make sure you know which cable is for the diskette drive(s) and which is for the hard disk drive(s).