IBM System x3550 M5 Type 5463 Installation And Service Manual page 269

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 your 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 more information about applying or
working with thermal grease, see "Thermal grease" on page 258.
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 sales
representative or IBM reseller.
v 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 tool has two settings for installing two different
sizes of microprocessors. The settings that are marked on the tool are "L" for
smaller low core microprocessors, and "H" for larger high core microprocessors.
Figure 182. Microprocessor installation tool
To replace a microprocessor and heat sink, complete the following steps:
Procedure
1. Read the safety information that begins on "Safety" on page vii and
"Installation guidelines" on page 122.
2. Turn off the server and peripheral devices and disconnect the power cords
and all external cables.
Attention: When you handle static-sensitive devices, take precautions to
avoid damage from static electricity. For details about handling these devices,
see "Handling static-sensitive devices" on page 124.
3. Remove the cover (see "Removing the cover" on page 126).
4. Remove the air baffle (see "Removing the air baffle" on page 129).
Chapter 5. Removing and replacing components
253