the microprocessor sockets on the system board. Any damage to the
microprocessor sockets may require replacing the system board.
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, the fourth and sixth fans. See “Installing a memory module” on page 59
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 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 the server, go to
http://www.ibm.com/support/fixcentral/.
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 details, see the information about
thermal grease in the Problem Determination and Service Guide.
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.
To install an additional microprocessor and heat sink, complete the following steps:
1. Read the safety information that begins on page vii and “Installation guidelines”
on page 38.
2. Turn off the server and peripheral devices and disconnect the power cords and
all external cables (see “Turning off the server” on page 28).
80 IBM System x3550 M4 Type 7914: Installation and User’s Guide
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