11. If you are instructed to return the microprocessor, follow all packaging
instructions, and use any packaging materials for shipping that are supplied to
you.
Installing 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:
v Microprocessors are to be installed only by trained service technicians.
v The server supports up to two Intel Xeon
™
E5-2600 series multi-core
microprocessors, which are designed for the LGA 2011 socket. See
http://www.ibm.com/servers/eserver/serverproven/compat/us/ for a list of
supported microprocessors.
v Do not mix dual-core, quad-core, and six-core microprocessors in the same
server.
v The first microprocessor must always be installed in microprocessor socket 1 on
the system board.
v When one microprocessor is installed, the air baffle must be installed to provide
proper system cooling.
v Do not remove the first microprocessor from the system board when you install
the second microprocessor.
v When you install the second microprocessor, you must also install additional
memory and the fourth fan. See “Installing a memory module” on page 250 for
details about the installation sequence.
v To ensure proper server operation when you install an additional microprocessor,
use microprocessors that have the same QuickPath Interconnect (QPI) link
speed, integrated memory controller frequency, core frequency, power segment,
internal cache size, and type.
v Mixing microprocessors of different stepping levels within the same server model
is supported.
v When mixing microprocessors with different stepping levels within the same
server model, you do not have to install the microprocessor with lowest stepping
level and features in microprocessor socket 1.
v Both microprocessor voltage regulator modules are integrated on the system
board.
v If you have to replace a microprocessor, call for service.
v Read the documentation that comes with the microprocessor to determine
whether you have to update the server firmware. To download the latest level of
server firmware and other code updates for your server, go to
http://www.ibm.com/systems/support/.
v The microprocessor speeds are automatically set for this server; therefore, you
do not have to set any microprocessor frequency-selection jumpers or switches.
v If the thermal-grease protective cover (for example, a plastic cap or tape liner) is
removed from the heat sink, do not touch the thermal grease on the bottom of
the heat sink or set down the heat sink. For more information about applying or
working with thermal grease, see “Thermal grease” on page 287.
Note: Removing the heat sink from the microprocessor destroys the even
distribution of the thermal grease and requires replacing the thermal grease.
v To order an additional optional microprocessor, contact your IBM marketing
representative or authorized reseller.
282 IBM System x3650 M4 Type 7915: Problem Determination and Service Guide
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