Lenovo ThinkEdge SE455 V3 User Manual page 90

Figure 54. Removing the cable wall
After this task is completed
• Install a replacement unit. See
• 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 cable wall with heat sink detect switch
Follow the instructions in this section to install the cable wall with heat sink detect switch.
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.
• Power off the server and peripheral devices and disconnect the power cords and all external cables. See
"Power off the server" on page
• Touch the static-protective package that contains the component to any unpainted metal surface on the
server; then, remove it from the package and place it on a static-protective surface.
Procedure
82 ThinkEdge SE455 V3 User Guide
"Install the cable wall with heat sink detect switch" on page
and "Safety inspection checklist" on page 40
48.
82.
to ensure that you