Lenovo 7269D7U - Topseller M58e Sff E7500 2.93G 3Gb 320Gb Dvdrw W7p/Xpp Hardware Maintenance Manual page 82

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 information on how to remove and replace the microprocessor. The procedure varies
depending upon the machine type.
1. Remove the computer cover. See "Removing the computer cover" on page 69.
2. Place the computer on its right side to help make the microprocessor more accessible.
3. Disconnect the heat sink and fan assembly cable from the system board. See the system board
illustration for your machine type at "System board connectors" on page 68.
4. Remove the four screws
5. Lift the heat sink and fan assembly off the failing system board. Place the heat sink on its side so that
the thermal grease does not come in contact with anything.
6. To remove the microprocessor
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ThinkCentre Hardware Maintenance Manual
1 securing the heat sink and fan assembly to the system board.
2 from the system board, lift the small handle 3 and open the retainer 1 .