Lenovo System x3550 M4 Installation And Service Manual page 298

Important: Always use the microprocessor installation tool to remove 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.
• 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.
• Each microprocessor socket must always contain either a socket cover or a microprocessor and heat
sink.
• 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.
• When installing multiple microprocessors, open one microprocessor socket at a time to avoid damaging
other microprocessor socket contacts.
• 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: Be sure to use the installation tool that comes with your microprocessor installation tool assembly.
The tools are similar in function and design, however Tool A has one setting for installing one size of
microprocessor, and supports the following families of microprocessors: E5-26xx, E5-46xx. Installation Tool
B has two settings for installing two different sizes of microprocessors. The settings that are marked on Tool
B are "L" for smaller low core microprocessors, and "H" for larger high core microprocessors. Installation
Tool B supports the following families of microprocessors: E5-26xx, E5-46xx, E5-26xx v2, E5-46xx v2.
Microprocessor Installation Tools A and B are shown in the following illustration.
Microprocessor Installation Tool A
Figure 213. Microprocessor installation tools
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Lenovo System x3550 M4 Installation and Service Guide
Installation tool
Microprocessor
Cover
Microprocessor Installation Tool B
Installation tool
Microprocessor