Installing and removing enclosure
components
Topics:
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Before working inside your system
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After working inside your system
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Dell EMC PowerEdge XE7440 and XE7420 sleds
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Safety instructions
NOTE:
To avoid injury, do not lift the system on your own, get others to assist you.
WARNING:
Opening or removing the system cover while the system is turned on may expose you to a risk of
electric shock.
CAUTION:
Do not operate the system without the cover for a duration exceeding five minutes. Operating the
system without the system cover can result in component damage.
CAUTION:
Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by
your warranty. Read and follow the safety instructions that are shipped with your product.
CAUTION:
To ensure proper operation and cooling, all bays in the system and system fans must be always
populated with a component or a blank.
NOTE:
It is recommended that you always use an antistatic mat and antistatic strap while working on components inside
the system.
NOTE:
While replacing the hot swappable PSU, after next server boot; the new PSU automatically updates to the same
firmware and configuration of the replaced one. For more information about the Part replacement configuration, see the
Lifecycle Controller User's Guide
at
https://www.dell.com/idracmanuals
NOTE:
While replacing faulty storage controller/FC/NIC card with the same type of card, after you power on the system;
the new card automatically updates to the same firmware and configuration of the faulty one. For more information about
the Part replacement configuration, see the
Lifecycle Controller User's Guide
at
https://www.dell.com/idracmanuals
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Installing and removing enclosure components