Lenovo System x3750 M4, Installation And Service Manual

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Removing and replacing FRUs
Use this information to remove and replace FRUs.
FRUs must be replaced or installed only by trained service technicians.
The illustrations in this document might differ slightly from the hardware.
Removing a microprocessor and heat sink
Use this information to remove a microprocessor and heat sink.
Attention:
• Be extremely careful when handling the microprocessor, the microprocessor socket contacts are very
fragile.
• Do not touch the microprocessor contacts. Contaminants on the microprocessor contacts, such as oil
from your skin, can cause connection failures between the contacts and the socket.
• Do not use any tools or sharp objects to lift the locking levers on the microprocessor socket. Doing so
might result in permanent damage to the system board.
• Do not allow the thermal grease on the microprocessor and heat sink to come in contact with anything.
Contact with any surface can compromise the thermal grease and the microprocessor socket.
• Each microprocessor socket must always contain either a socket cover or a microprocessor and heat sink.
• When removing multiple microprocessors, open one microprocessor socket at a time to avoid damaging
other microprocessor socket contacts.
• Be sure to use only the installation tools provided with the new microprocessor to remove or install
the microprocessor. Do not use any other tool.
• The microprocessor installation tool has the microprocessor installed on the tool, and may have a
protective cover over the microprocessor. Do not use the tool, or remove the cover until you are
instructed to do so.
Note: This procedure for removing a microprocessor and heat sink also apply when removing a
microprocessor and heat sink from the microprocessor and memory expansion tray.
There are two types of microprocessor installation tools. The tools are similar in function and design;
but, have a major difference.
Be sure to use the installation tool that comes with your microprocessor installation tool assembly.
• Installation Tool A has one setting for installing one size of microprocessor that supports E5-26xx and
E5-46xx microprocessors.
• Installation Tool B supports E5-26xx, E5-46xx, E5-26xx v2, and E5-46xx v2 microprocessors. Installation
Tool B has two settings for installing two different sizes of microprocessors. The settings on Tool B are:
– “L” for smaller low core microprocessors
– “H” for larger high core microprocessors
Microprocessor Installation Tools A and B are shown in the next illustration.
Chapter 6
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Removing and replacing components
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