Lenovo ThinkEdge SE455 V3 User Manual page 232

Attention:
• Service label is located on the inside of the top cover.
• For proper cooling and air flow, install the top cover before you power on the server.
Operating the server with the top cover removed might damage server components.
Figure 197. Removing top cover
After this task is completed
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 the top cover
Follow instructions in this section to install the top cover.
S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off the
electrical current supplied to the device. The device also 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.
About this task
Attention:
• Read "Installation Guidelines" on page 39
work safely.
224 ThinkEdge SE455 V3 User Guide
and "Safety inspection checklist" on page 40 to ensure that you