Lenovo ThinkSystem ST550 7X09 Maintenance Manual page 169

• Youtube:
https://www.youtube.com/playlist?list=PLYV5R7hVcs-Acsjj4tU79GzKnWG316BYn
• Youku: http://list.youku.com/albumlist/show/id_50483452
Step 1. Remove the PHM from the system board.
Figure 118. Removing a PHM
Attention: To prevent damage to components, make sure that you follow the indicated loosening
sequence.
a. Fully loosen the Torx T30 captive fasteners on the processor-heat-sink module in the removal
sequence shown on the heat-sink label.
b. Lift the processor-heat-sink module from the processor socket.
After removing a PHM:
• If you are removing the PHM as part of a system board replacement, set the PHM aside.
• If you are removing the PHM, remove the extra system fans accordingly and install fan fillers to cover the
place. For information about the system fan configuration, see "Specifications" on page 3.
.
Chapter 3 Hardware replacement procedures
161