Replacing A Microprocessor And Heat Sink - Lenovo NeXtScale nx360 M5 Installation And Service Manual

Figure 142. Installation tool removal
Step 7. Install the new microprocessor (see "Replacing a microprocessor and heat sink" on page 204).
Attention: If you are replacing a microprocessor, use the empty installation tool that comes with
the new microprocessor to remove the microprocessor.
Step 8. If you do not intend to install a microprocessor on the socket, install the socket cover that you
removed in Step 6 on page 208 on the microprocessor socket.
Attention: The pins on the socket are fragile. Any damage to the pins may require replacing the
system board.
If you are instructed to return the microprocessor, follow all packaging instructions, and use any packaging
materials for shipping that are supplied to you.

Replacing a microprocessor and heat sink

The following notes describe the type of microprocessor that the server supports and other information that
you must consider when you install a microprocessor and heat sink.
Before you replace a microprocessor and heat sink, complete the following steps:
1. Read "Safety" on page v and "Installation guidelines" on page 101.
2. If the compute node is installed in a NeXtScale n1200 Enclosure, remove it (see "Removing a compute
node from a chassis" on page 104 for instructions).
3. Carefully lay the compute node on a flat, static-protective surface, orienting the compute node with
the bezel pointing toward you.
• Microprocessors are to be installed only by trained technicians.
Important: Always use the microprocessor installation tool to install a microprocessor. Failing to use
the microprocessor installation tool may damage the microprocessor sockets on the system board. Any
damage to the microprocessor sockets may require replacing the system board.
• Be extremely careful, the microprocessor socket contacts are very fragile. Do not touch the
microprocessor socket contacts. Contaminants on the microprocessor contacts or microprocessor socket
contacts, such as oil from your skin, can cause connection failures between the contacts and the socket.
• Do not allow the thermal grease on the microprocessor and heat sink to come in contact with anything.
Contact with any surface can contaminate the thermal grease and the microprocessor socket.
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Lenovo NeXtScale nx360 M5 Installation and Service Guide