Lenovo IdeaCentre Q200 - Manual (Page 20)

17
Hardware Replacement Guide
7. Install the new power supply assembly into the chassis so that the screw holes
in the power supply assembly align with those in the chassis.
Note: Use only the screws provided by Lenovo.
8. Install and tighten the three screws at the rear of the chassis to secure the
power supply assembly.
9. Reconnect all the power supply cables to the drives and the system board.
10. Refer to the “Completing the installation”.
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://www.lenovo.com/support.
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 all cables connected to the system board.Carefully take note of the
location of all cable connections on the system board.
5. Lift the system board out of the chassis carefully. Refer to the “Replacing the
system board”.
6. Disconnect the heat sink and the fan assembly cable from the system board.
7. Remove the four screws securing the heat sink and fan assembly to the
system board.
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