Lenovo ThinkEdge SE455 V3 User Manual page 185

Figure 159. Power supply unit removal
After this task is completed
1. Install a power supply or power supply filler as soon as possible. See
unit" on page 177.
Important: During normal operation, each power supply bay must contain either a power supply unit or
a power supply filler for proper cooling.
2. If you are instructed to return the component or optional device, follow all packaging instructions, and
use any packaging materials for shipping that are supplied to you.
Install a hot-swap power supply unit
Follow instructions in this section to install a hot-swap power supply unit.
S001
DANGER
Electrical current from power, telephone, and communication cables is hazardous.
To avoid a shock hazard:
• Connect all power cords to a properly wired and grounded electrical outlet/source.
• Connect any equipment that will be attached to this product to properly wired outlets/sources.
• When possible, use one hand only to connect or disconnect signal cables.
• Never turn on any equipment when there is evidence of fire, water, or structural damage.
• The device might have more than one power cord, to remove all electrical current from the
device, ensure that all power cords are disconnected from the power source.
"Install a hot-swap power supply
.
Chapter 5 Hardware replacement procedures 177