Lenovo ThinkSystem SR635 V3 User Manual page 211

Step 1. Make preparation for this 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. Power off the server and peripheral devices and disconnect the power cords and all external
cables. See
e. If the server is installed in a rack, slide the server out on its rack slide rails to gain access to the
top cover, or remove the server from the rack.
f. Remove the top cover. See
g. If your server comes with a rear cage, remove it first.
"Remove the rear 2.5-inch drive backplane" on page 64
h. Record where the cables are connected to the system board assembly; then, disconnect all
the cables.
Notes:
• If you need to disconnect cables from the system board assembly, disengage all latches or
release tabs on cable connectors first. Failing to release the tab before removing the cables
will damage the cable sockets on the system board assembly. Any damage to the cable
sockets might require replacing the system board assembly.
• The connectors on your system board assembly might look different from those in the
illustration, but the removal procedure is the same.
1. Press the release tab to release the connector.
2. Disengage the connector from the cable socket.
Figure 145. Disconnecting cables from the system board assembly
"Power off the server" on page
"Remove the top cover" on page
60.
212.
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Chapter 5 Hardware replacement procedures
201