Lenovo ThinkCentre A70 Hardware Maintenance Manual for ThinkCentre A70 - Page 131

3. Insert the tabs 1 of the socket cover into the hinged side of the socket, and then press the other side of the socket cover downward until the tabs 2 snap into position. Figure 66. Tabs on the microprocessor socket cover (bottom view) Figure 67. Installing the microprocessor socket cover Replacing the hard disk drive Attention Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the ThinkCentre Safety and Warranty Guide that came with your computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide, go to: http://www.lenovo.com/support This section provides instructions on how to replace the hard disk drive. To replace the hard disk drive, do the following: 1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer. 2. Remove the computer cover. See "Removing the computer cover" on page 101. 3. Remove the front bezel. See "Removing and reinstalling the front bezel" on page 102. 4. Note the locations of the four screws 1 that secure the hard disk drive. Then, pivot the drive bay assembly upward. Chapter 9. Replacing FRUs (Machine Types: 0889, 5023, and 7844.) 125