1. Installing Internal Optional Devices
Express5800/E120e-M User's Guide
91
Chapter 2 Preparations
1.14.2
Replacing a Failed Power Supply Unit
Replace only when the power supply unit fails.
CAUTION
Be sure to observe the following precautions to use the server safely. Failure to
observe the precautions may cause burns, injury, and property damage. For
details, refer to
Safety precautions
in
Precautions for Use.
•
Pay attention to electric hazard.
Important Do not remove a power supply unit operating normally.
Tips
In redundant power system is configured using two power supply units, the failed power
supply unit can be replaced while the system is powered on.
Remove the power supply unit in the following procedure.
1. Refer to steps 1 to 2 in
Chapter 2 (1.3 Overview of Installation and Removal)
for preparations.
2. Disconnect the AC power cord from the failed power supply unit.
3. Push the lever of the failed power supply unit toward inside, and pull the power supply unit while holding
the handle.
4. Insert the new power supply unit until it is locked with clicking sound.
①
②
