Lenovo ThinkCentre M70e Hardware Maintenance Manual (HMM) for ThinkCentre M70e - Page 125

1. Make sure that the microprocessor has been removed from the microprocessor socket. See "Replacing the microprocessor" on page 112. 2. Close the microprocessor retainer and lock it into position with the small handle. 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 58. Tabs on the microprocessor socket cover (bottom view) Figure 59. Installing the microprocessor socket cover Replacing the power supply assembly 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 power supply assembly. Although there are no moving parts in your computer after the power cord has been disconnected, the following warnings are required for your safety and proper Underwriters Laboratories (UL) certification. Chapter 9. Replacing FRUs (Machine Types: 0804, 0809, 0811, 0822, 0825, 0828, 0830, 0833, 0837, 0843, 0845, 0847, and 0849.) 117