Lenovo IdeaCentre K4 Series Hardware Maintenance Manual page 44

Step 4. Remove the computer cover. Refer to "Removing the computer cover".
Step 5. Remove the microprocessor fan. Refer to "Replacing the microprocessor fan".
Step 6. Remove the heat-sink. Refer to "Replacing the heat-sink".
Step 7. To remove the microprocessor
to spring it up.
Attention: Do not touch the gold contacts on the bottom of the microprocessor. When handing the
microprocessor, touch only the sides.
Note: Do not drop anything onto the microprocessor socket while it is exposed. The socket pins must
be kept as clean as possible.
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IdeaCentre K4 SeriesHardware Maintenance Manual
3 from the system board, press then slide the small handle out
1 and open the retainer. 2