Lenovo ThinkCentre A58e Hardware Maintenance Manual - Page 79

Replacing the heat sink and fan assembly

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19. Go to "Completing the FRU replacement" on page 84. Replacing the heat sink and fan 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 heat sink and fan assembly. CAUTION: The heat sink and fan assembly might be very hot. Turn off the computer and wait three to five minutes to let the computer cool before removing the computer cover. To replace the heat sink and fan assembly, do the following: 1. Remove the computer cover. See "Removing the computer cover" on page 67. 2. Lay the computer on its side for easier access to the system board. 3. Locate the heat sink and fan assembly and disconnect the heat sink and fan assembly cable from the microprocessor fan connector on the system board. See "System board connectors" on page 66. 4. Remove the four screws 1 that secure the heat sink and fan assembly. Note: Carefully remove the four screws from the system board to avoid any possible damage. The four screws cannot be removed from the heat sink and fan assembly. Figure 7. Screws that secure the heat sink and fan assembly 5. Lift the old heat sink and fan assembly off the system board. Chapter 8. Replacing FRUs (Type 0841) 73

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19.Go to “Completing the FRU replacement” on page 84.
Replacing the heat sink and fan 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:
This section provides instructions on how to replace the heat sink and fan assembly.
CAUTION:
The heat sink and fan assembly might be very hot. Turn off the computer and wait
three to five minutes to let the computer cool before removing the computer cover.
To replace the heat sink and fan assembly, do the following:
1.
Remove the computer cover. See “Removing the computer cover” on page 67.
2.
Lay the computer on its side for easier access to the system board.
3.
Locate the heat sink and fan assembly and disconnect the heat sink and fan assembly cable from the
microprocessor fan connector on the system board. See “System board connectors” on page 66.
4.
Remove the four screws
1
that secure the heat sink and fan assembly.
Note:
Carefully remove the four screws from the system board to avoid any possible damage. The four
screws cannot be removed from the heat sink and fan assembly.
Figure 7. Screws that secure the heat sink and fan assembly
5.
Lift the old heat sink and fan assembly off the system board.
Chapter 8
.
Replacing FRUs (Type 0841)
73