Install the heat sink
Use this information to install the heat sink. This procedure must be executed by a trained technician.
- S012CAUTIONHot surface nearby.
Turn off the server. Disconnect the power cords and all external cables (see Power off the server).
If there is any old thermal grease on the processor, gently clean the top of the processor using an alcohol cleaning pad. Dispose of the cleaning pad after all of the thermal grease is removed.NoteIf you are applying new thermal grease on the top of the processor, make sure to do it after the alcohol has fully evaporated.
To ensure the best performance, check the manufacturing date on the new heat sink and make sure it does not exceed 2 years. Otherwise, wipe off the existing thermal grease and apply the new grease onto it for optimal thermal performance.
Apply the thermal grease on the top of the processor with syringe by forming four uniformly spaced dots, while each dot consists of about 0.1 ml of thermal grease.Figure 1. Proper shape of the thermal grease
- Align the triangular marks and guide pins on the processor socket with the heat sink; then, insert the heat sink into the processor socket.AttentionTo prevent damage to components, make sure that you follow the indicated tightening sequence.
- Fully tighten the screws in the installation sequence shown on the heat-sink label. Tighten the screws until they stop; then, visually inspect to make sure that there is no gap between the screw shoulder beneath the heat sink and the processor socket. (For reference, the torque required for the nuts to fully tighten is 1.4-1.6 newton-meters, 12-14 inch-pounds).Figure 2. Heat sink installation