Lenovo ThinkSystem SR860 V3 User Manual page 240

Attention:
• Read "Installation Guidelines" on page 43
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
• Prevent exposure to static electricity, which might lead to system halt and loss of data, by keeping static-
sensitive components in their static-protective packages until installation, and handling these devices with
an electrostatic-discharge wrist strap or other grounding system.
• If the server is installed in a rack, slide the server out on its rack slide rails to gain access to the top covers,
or remove the server from the rack. See
Note: A power supply key is only available on models configured with CFFv4 power supplies.
Procedure
Step 1. Make preparation for the task.
a. Remove the power supply unit. See
b. Remove the front top cover. See
c. Remove the rear top cover. See
d. Remove the power backplane. See
Step 2. Remove the screw that secures the power supply key.
Figure 185. Removing power supply key screw
Power supply key screw for PSU bay 1
1
Power supply key screw for PSU bay 2
2
Step 3. Grasp the power supply key and slide it out of the power supply bay.
ThinkSystem SR860 V3 User Guide
230
and "Safety inspection checklist" on page 44
58.
"Remove the server from rails" on page
"Remove a hot-swap power supply unit" on page
"Remove the front top cover" on page
"Remove the rear top cover" on page
"Remove the power backplane" on page
58.
274.
Power supply key screw for PSU bay 3
3
Power supply key screw for PSU bay 4
4
to ensure that you
233.
272.
218.