Lenovo Flex System x220, Installation And Service Manual

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3. Carefully lay the compute node on a flat, static-protective surface, orienting the compute node with
the bezel pointing toward you.
The following notes describe the type of microprocessor that the compute node supports and other
information that you must consider when you install a microprocessor:
• This component can be installed as an optional device or as a CRU. The installation procedure is the
same for the optional device and the CRU.
• The optional microprocessors are limited by the capacity and capability of the compute node. Any
microprocessors that you install must have the same specifications as the microprocessors that came
with the compute node.
• Each microprocessor socket must always contain a socket cover and heat-sink filler or a microprocessor
and heat sink. If the compute node has only one microprocessor, it must be installed in microprocessor
socket 1.
• If you are installing a second microprocessor, make sure that the microprocessors are identical.
• Before you install a new microprocessor, download and install the most current level of UEFI code (see
“Updating firmware and device drivers” on page 21).
• When you install a second microprocessor, you must install additional memory or redistribute memory
across the DIMM connectors. See “Installing a DIMM” on page 654.
• The microprocessor installation tool might become worn after several uses. Make sure that the tool can
hold the microprocessor securely if you are reusing an existing microprocessor installation tool. Do not
return the tool with other parts that you are returning.
• If you are installing a second microprocessor, the microprocessor option kit comes with a microprocessor
installation tool that you must use when you install a microprocessor. The microprocessor installation tool
comes with the replacement microprocessor installed on it and a cover over the microprocessor.
• If you are replacing a defective microprocessor, the CRU kit comes with one installation tool with
the replacement microprocessor installed on it and a cover over the microprocessor, and one empty
installation tool without a cover.
• If you are replacing a defective microprocessor, you must obtain alcohol wipes and thermal grease for use
during the replacement procedure (see Chapter 5 “Parts listing, Types 2585 and 7906” on page 55).
Attention:
1. 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.
2. Do not touch the contacts in the microprocessor socket. Touching these contacts might result in
permanent damage to the system board.
To install a microprocessor and heat sink, complete the following steps.
Chapter 7
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Installing, removing, and replacing compute node components
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