Lenovo ThinkSystem SR860 V3 User Manual page 230

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
Procedure
Step 1. Make preparation for the task.
a. Gently pull and disengage every installed power supply unit. See
supply unit" on page
b. Remove the front top cover. See
c. Remove the rear top cover. See
Step 2. Disconnect the sideband and power cables from the power backplane.
Figure 176. Disconnecting power backplane cables
Step 3. Grasp and lift the power backplane to remove it.
ThinkSystem SR860 V3 User Guide
220
and "Safety inspection checklist" on page 44
58.
"Remove the server from rails" on page
233.
"Remove the front top cover" on page
"Remove the rear top cover" on page
to ensure that you
58.
"Remove a hot-swap power
272.
274.