Lenovo HR650X V2 User Manual page 112

• Do not touch the processor socket or processor contacts. Processor-socket contacts are very fragile and
easily damaged. Contaminants on the processor contacts, such as oil from your skin, can cause
connection failures.
• Do not allow the thermal grease on the processor or heat sink to come in contact with anything. Contact
with any surface can compromise the thermal grease, rendering it ineffective. Thermal grease can damage
components, such as the electrical connectors in the processor socket.
• Remove and install only one PHM at a time. If the system board supports multiple processors, install the
PHMs starting with the first processor socket.
• 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.
Notes:
• PHMs are keyed for the socket where they can be installed and for their orientation in the socket.
• See https://static.lenovo.com/us/en/serverproven/index.shtml
server. All processors on the system board must have the same speed, number of cores, and frequency.
• Before you install a new PHM or replacement processor, update your system firmware to the latest level.
• The heat sink, processor, and processor carrier for the system might be different from those shown in the
illustrations.
The following illustration shows the components of the PHM.
Figure 68. PHM components
1
Heat sink
2
Heat sink triangular mark
104
HR650X V2 User Guide
for a list of processors supported for your
9
Clips to secure processor in carrier
10
Carrier triangular mark