Lenovo ThinkSystem SR860 V3 User Manual page 272

• When replacing the system board assembly, always update the server with the latest firmware or restore
the pre-existing firmware. Make sure that you have the latest firmware or a copy of the pre-existing
firmware before you proceed.
• When removing the memory modules, label the slot number on each memory module, remove all the
memory modules from the system board assembly, and set them aside on a static-protective surface for
reinstallation.
• When disconnecting cables, make a list of each cable and record the connectors the cable is
connected to, and use the record as a cabling checklist after installing the new system board
assembly.
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. Record all system configuration information, such as Lenovo XClarity Controller IP addresses,
vital product data, and the machine type, model number, serial number, Universally Unique
Identifier, and asset tag of the server.
b. Save the system configuration to an external device with Lenovo XClarity Essentials.
c. Save the system event log to external media.
d. Gently pull and disengage every installed power supply unit. See
supply unit" on page
e. Remove the front top cover. See
f. Remove the rear top cover. See
g. Remove all fan modules. See
h. Remove the fan cage. See
i. Remove the front air baffle. See
j. Remove the crossbar. See
k. Remove all the PCIe risers. See
l. Remove the rear air baffle. See
m. Remove the power backplane. See
n. Remove the PHMs. See
o. Remove the memory modules. See
p. Remove the serial port module. See
q. Disconnect all cables connected to the system board assembly. See
routing" on page
Step 2. Disengage the system board assembly.
ThinkSystem SR860 V3 User Guide
262
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
"Remove a fan module" on page
"Remove the fan cage" on page
"Remove the front air baffle" on page
"Remove the crossbar" on page
"Remove the PCIe riser" on page
"Remove the rear air baffle" on page
"Remove the power backplane" on page
"Remove a processor and heat sink" on page
"Remove a memory module" on page
"Remove the serial port module" on page
283.
to ensure that you
58.
"Remove a hot-swap power
272.
274.
125.
127.
87.
109.
174.
94.
218.
237.
164.
250.
Chapter 6 "Internal cable