Lenovo IdeaCentre K320 Lenovo IdeaCentre K320 Hardware Replacement Guide V3.0 - Page 21

Replacing the heat sink assembly

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Replacing the heat sink assembly Attention: Do not remove the computer cover or attempt any repair before reading the "Important safety information" in the Safety and Warranty Guide that was included with your computer or in the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Safety and Warranty Guide or HMM, go to the Support Web site at: http://consumersupport.lenovo.com To replace the heat sink assembly: 1. Remove the computer cover. Refer to "Removing the computer cover". 2. Lay the computer on its side. 3. Locate the heat sink. Refer to "Identifying parts on the system board". 4. Disconnect the heat sink and the fan assembly cable from the system board. 5. Remove the four screws securing the heat sink and fan assembly to the system board. 6. Lift the failing heat sink and fan assembly off the system board. 7. Use the thermal grease syringe to place five drops of grease on the top of the microprocessor. Each drop of grease should be 0.03ml (3 tick marks on the grease syringe). 18 Hardware Replacement Guide 31041595_K3_HRG(H57)_EN_V3.0.ind18 18 2009.11.17 10:54:28 AM

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Hardware Replacement Guide
Replacing the heat sink assembly
Attention:
Do not remove the computer cover or attempt any repair before reading the
“Important safety information” in the
Safety and Warranty Guide
that was
included with your computer or in the
Hardware Maintenance Manual
(HMM)
for the computer. To obtain copies of the
Safety and Warranty Guide
or
HMM
, go to the Support Web site at: http://consumersupport.lenovo.com
To replace the heat sink assembly:
1.
Remove the computer cover. Refer to “Removing the computer cover”.
2.
Lay the computer on its side.
3.
Locate the heat sink. Refer to “Identifying parts on the system board”.
4.
Disconnect the heat sink and the fan assembly cable from the system board.
5.
Remove the four screws
securing the heat sink and fan assembly to the
system board.
6.
Lift the failing heat sink and fan assembly off the system board.
7.
Use the thermal grease syringe to place five drops of grease on the top of the
microprocessor. Each drop of grease should be 0.03ml (3 tick marks on the
grease syringe).
31041595_K3_HRG(H57)_EN_V3.0.ind18
18
2009.11.17
10:54:28 AM