Before Working Inside Your System; After Working Inside Your System - Dell EMC PowerEdge T550 Installation And Service Manual

CAUTION: Ensure to have two or more people to lift the system horizontally from the box and place it on a flat
surface, rack lift, or into the rails.
WARNING: Opening or removing the system cover while the system is powered on may expose you to a risk of
electric shock.
WARNING: 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.
NOTE: It is recommended that you always use an antistatic mat and antistatic strap while working on components inside
the system.
CAUTION: To ensure proper operation and cooling, all system bays and fans must always be populated with a
component or a blank.
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 updating to the latest firmware and changing the configuration, see the
Lifecycle Controller User's Guide at https://www.dell.com/idracmanuals.
NOTE: While replacing faulty storage controller, FC, or 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 updating to
the latest firmware and changing the configuration, see the Lifecycle Controller User's Guide at
idracmanuals.
CAUTION: Do not install GPUs, network cards, or other PCIe devices on your system that are not validated
and tested by Dell. Damage caused by unauthorized and invalidated hardware installation will null and void the
system warranty.

Before working inside your system

Prerequisites
Follow the safety guidelines listed in the
Steps
1. Power off the system and all attached peripherals.
2. Disconnect the system from the electrical outlet, and disconnect the peripherals.
3. If applicable, remove the system from the rack.
For more information, see the Rail Installation Guide relevant to your rail solutions at www.dell.com/poweredgemanuals.
4. Remove the system cover.

After working inside your system

Prerequisites
Follow the safety guidelines listed in
Steps
1. Replace the system cover.
2. Reconnect the peripherals and connect the system to the electrical outlet, and then power on the system.
Safety instructions.
Safety instructions.
Installing and removing system components
https://www.dell.com/
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