Lenovo ThinkSystem SR860 V3 User Manual page 254

• Each processor socket must always contain a cover or a PHM. When removing or installing a PHM,
protect empty processor sockets with a cover.
• 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 supports multiple processors, install the PHMs
starting with the first processor socket.
Notes:
• The heat sink, processor, and processor carrier for your system might be different from those shown in the
illustrations.
• PHMs are keyed for the socket where they can be installed and for their orientation in the socket.
• See
https://serverproven.lenovo.com
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.
See "Update the firmware" on page
The following illustration shows the components of the PHM.
Figure 196. PHM components
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for a list of processors supported for your server. All processors must
435.