Lenovo HX3510-G Installation And Service Manual page 232

Retainer bracket tabs
Figure 186. Heat sink installation
d. Align and insert the front tab of the heat sink under the retainer bracket tabs.
e. Align and place the heat sink on top of the microprocessor in the retention bracket, thermal
material side down.
f. Press firmly on the heat sink.
g. Rotate the heat sink retention module release lever to the closed position and hook it
underneath the lock tab.
Heat sink
Figure 187. Heat sink retention module release lever
Step 12. Reinstall the air baffle (see "Replacing the air baffle" on page 120).
Step 13. Install the top cover (see "Replacing the top cover" on page 118).
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HX3510-G, HX5510, HX5510-C, HX7510 Installation and Service Guide
Heat sink
release lever
Heat sink
release lever
Heat sink
Lock tab