Dell EMC PowerEdge T640 Installation And Service Manual page 119

Figure 61. Installing the processor bracket
3 If you are using an existing heat sink, remove the thermal grease from the heat sink by using a clean lint-free cloth.
4 Use the thermal grease syringe included with your processor kit to apply the grease in a quadrilateral design on the top of the
processor.
CAUTION: Applying too much thermal grease can result in excess grease coming in contact with and contaminating the
processor socket.
NOTE: The thermal grease syringe is intended for single use only. Dispose the syringe after you use it.
Figure 62. Applying thermal grease on top of the processor
Installing and removing system components 119