Lenovo ThinkEdge SE455 V3 User Manual page 100

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
• If the server is installed in a rack, remove the server from the rack. See
on page 49.
Procedure
Step 1. Make preparation for this task.
a. Remove the top cover. See
b. Remove all the PCIe assemblies. If the configuration comes with PCIe riser 2 and internal
drives, remove all the internal drives, and lift the internal drive backplane before removing PCIe
riser 2. See
c. Remove the processor air baffle. See
d. Remove all the fan modules. See
Step 2. Remove the fan cage.
a. Loosen the two thumbscrews on the sides of the fan cage.
b. Lift the fan cage up until the guide pin on the chassis is seated in the large opening of the
guiding slot on fan cage.
c. Move the cage forward and remove it from the chassis.
92 ThinkEdge SE455 V3 User Guide
and "Safety inspection checklist" on page 40
"Remove the security bezel" on page
48.
"Remove the top cover" on page
"Remove the PCIe riser assembly" on page
"Remove a fan module" on page
"Remove the server from the rack"
223.
141.
"Remove the processor air baffle" on page
to ensure that you
195.
67.
89.