Lenovo ThinkCentre Edge 62z Hardware Maintenance Manual (HMM) (Sept 2012) - Th - Page 88
Replacing the heat sink assembly
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To replace the microprocessor fan, 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. Place a soft, clean towel or cloth on the desk or other flat surface. Hold the sides of your computer and gently lay it down so that the screen is against the surface and the cover is facing up. 3. Remove the computer cover. See "Removing the computer cover" on page 75. 4. Remove the VESA mount bracket. See "Removing and reinstalling the VESA mount bracket" on page 75. 5. Locate the microprocessor fan in the computer. See "Locating major FRUs and CRUs" on page 67. 6. Remove the microprocessor board shield. See "Removing and reinstalling the system board shield" on page 80. 7. Note the routing of the microprocessor fan cable, and then disconnect the microprocessor fan cable from the system board. See "Locating parts on the system board" on page 70. 8. Remove the two screws 1 that secure the microprocessor fan to the main bracket. Then, lift the microprocessor fan off the main bracket. Figure 19. Removing the microprocessor fan 9. To reinstall the microprocessor fan, position the new microprocessor fan on the main bracket and align the screw holes in the new microprocessor fan with those in the main bracket. Reinstall the two screws that secure the microprocessor fan to the main bracket. 10. Connect the new microprocessor fan cable to the system board. See "Locating parts on the system board" on page 70. 11. Reinstall the system board shield. See "Removing and reinstalling the system board shield" on page 80. 12. Go to "Completing the parts replacement" on page 100. Replacing the heat sink assembly Attention Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the Safety, Warranty, and Setup Guide that came with your computer. To obtain a copy of the 82 ThinkCentre Edge Hardware Maintenance Manual