Lenovo ThinkEdge SE455 V3 User Manual page 101

Figure 62. Removing the fan cage
After this task is completed
• If necessary, proceed to remove the fan control board. See
93.
• 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.
Remove the fan control board (FCB)
Follow the instructions in this section to remove the fan control board (FCB).
About this task
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.
Attention:
• Read "Installation Guidelines" on page 39
work safely.
• If applicable, remove the security bezel. See
• Power off the server and peripheral devices and disconnect the power cords and all external cables. See
"Power off the server" on page
and "Safety inspection checklist" on page 40
"Remove the security bezel" on page
48.
"Remove the fan control board (FCB)" on page
195.
.
Chapter 5 Hardware replacement procedures
to ensure that you
93