System Board Assembly Replacement; Technician Only) - Lenovo ThinkSystem SD550 V3 User Manual

10. Make sure that the required power supply units are installed and power cords are connected; then,
power on the node (see
53.)
11. Proceed to complete the parts replacement (see
System board assembly replacement (trained technician only)
Follow instructions in this section to remove or install the system board assembly.
Important: This task must be operated by trained technicians.
CAUTION:
The heat sinks and processors might be very hot. Turn off the server and wait several minutes to let
the server cool before removing the server cover.
Remove the firmware and RoT security module
Follow instructions in this section to remove the firmware and RoT security module (ThinkSystem V3
Firmware and Root of Trust Security Module).
About this task
To avoid potential danger, make sure to read and follow the safety information.
Attention: Read "Installation Guidelines" on page 43
sure that you work safely.
Procedure
Step 1. Make preparations for this task.
a. Perform OneCLI commands to back up the UEFI settings. See
onecli/onecli_r_save_command
b. Perform both OneCLI commands and XCC actions to back up the XCC settings. See
pubs.lenovo.com/lxce-onecli/onecli_r_save_command
c_backupthexcc.html
c. Power off the node (see
from the node.
Note: If necessary, press the release clip with a flat-head screwdriver to remove an external
network cable from the rear of a 2U node.
ThinkSystem SD550 V3 User Guide
186
"Install a hot-swap power supply" on page 63
.
.
"Power off the node" on page
and
"Complete the parts replacement" on page
and "Safety inspection checklist" on page 44
https://pubs.lenovo.com/lxce-
and
https://pubs.lenovo.com/xcc2/NN1ia_
53); then, disconnect all external cables
"Power on the node" on page
208).
to make
https://