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Chapter 4. Removing and replacing server components
Replaceable components are of three types:
v Self-service customer replaceable unit (CRU): Replacement of self-service
CRUs is your responsibility. If Lenovo installs a self-service CRU at your request,
you will be charged for the installation.
v Optional-service customer replaceable unit: You may install an
optional-service CRU yourself or request Lenovo to install it, at no additional
charge, under the type of warranty service that is designated for your server.
v Field replaceable unit (FRU): FRUs must be installed only by trained service
technicians.
For information about the terms of the warranty and getting service and assistance,
see the Warranty and Support Information document.
Installation guidelines
Before you remove or replace a component, read the following information:
v Read the safety information that begins on page vii and the guidelines in
“Handling static-sensitive devices” on page 75. This information will help you
work safely.
v Observe good housekeeping in the area where you are working. Place removed
covers and other parts in a safe place.
v If you must start the server while the cover is removed, make sure that no one is
near the server and that no other objects have been left inside the server.
v Do not attempt to lift an object that you think is too heavy for you. If you have to
lift a heavy object, observe the following precautions:
– Make sure that you stand safely without slipping.
– Distribute the weight of the object equally between your feet.
– Use a slow lifting force. Never move suddenly or twist when you lift a heavy
object.
– To avoid straining the muscles in your back, lift by standing or by pushing up
with your leg muscles
v Make sure that you have an adequate number of properly grounded electrical
outlets for the server, monitor, and other devices.
v Back up all important data before you make changes to disk drives.
v Have a small flat-blade screwdriver available.
v You do not have to turn off the server to install or replace hot-swap power
supplies, hot-swap fans, hot-plug adapters, or hot-plug Universal Serial Bus
(USB) devices. However, you must turn off the server before performing any
steps that involve removing or installing adapter cables.
v Blue on a component indicates touch points, where you can grip the component
to remove it from or install it in the server, open or close a latch, and so on.
v Orange on a component or an orange label on or near a component indicates
that the component can be hot-swapped, which means that if the server and
operating system support hot-swap capability, you can remove or install the
component while the server is running. (Orange can also indicate touch points on
hot-swap components.) See the instructions for removing or installing a specific
hot-swap component for any additional procedures that you might have to
perform before you remove or install the component.
© Lenovo 2008. Portions © IBM Corp. 2008. 73