Lenovo x3650 M4 BD 5466 Installation And Service Manual page 247

• Microprocessors with different stepping levels are supported in this server. If you install microprocessors
with different stepping levels, it does not matter which microprocessor is installed in microprocessor
connector 1 or connector 2.
• If you are installing a microprocessor that has been removed, make sure that it is paired with its original
heat sink or a new replacement heat sink. Do not reuse a heat sink from another microprocessor; the
thermal grease distribution might be different and might affect conductivity.
• If you are installing a new heat sink, remove the protective backing from the thermal material that is
on the underside of the new heat sink.
• If you are installing a new heat-sink assembly that did not come with thermal grease, see "Thermal
grease" on page 68 for instructions for applying thermal grease.
• If you are installing a heat sink that has contaminated thermal grease, see "Thermal grease" on page 68
for instructions for replacing the thermal grease.
There are two types of microprocessor installation tools. 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 173. Microprocessor installation tools
To install a microprocessor and heat sink, complete the following steps:
Step 1. Read the safety information that begins on page "Safety" on page v and "Installation guidelines"
on page 30.
Step 2. Open the microprocessor socket release levers and retainer:
Installation tool
Microprocessor
Cover
Microprocessor Installation Tool B
Installation tool
Microprocessor
.
Chapter 6 Removing and replacing components
233