Lenovo ThinkEdge SE455 V3 User Manual page 221

• When removing the memory modules, label the slot number on each memory module, remove all the
memory modules from the system board, 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.
Attention:
• Read "Installation Guidelines" on page 39
work safely.
• If applicable, remove the security bezel. See
• Power off the server and peripheral devices and disconnect the power cords and all external cables. See
"Power off the server" on page
• If the server is installed in a rack, remove the server from the rack. See
on page 49.
Procedure
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. If applicable, remove the OCP module. See
e. Remove the top cover. See
f. If applicable, remove all the internal drives. See
g. If applicable, remove the internal drive backplane. See
on page 107.
h. If applicable, remove internal drive cage. See
i. Remove all the PCIe assemblies. See
j. Remove the processor air baffle. See
k. Remove the intrusion switch. See
l. Remove all the fan modules. See
m. Remove the fan cage. See
n. Remove the fan control board (FCB). See
o. If applicable, remove the air flow sensor board. See
page 75.
p. Make sure to 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. See
q. Remove the firmware and RoT security module. See
module" on page
r. Remove the heat sink and the processor. See
a processor" on page
Step 2. Disconnect all the cables from the system board. While disconnecting the 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.
and "Safety inspection checklist" on page 40
"Remove the security bezel" on page
48.
"Remove the top cover" on page
"Remove the PCIe riser assembly" on page
"Remove the processor air baffle" on page
"Remove the intrusion switch with cable" on page
"Remove a fan module" on page
"Remove the fan cage" on page
"Remove a memory module" on page
207.
183.
"Remove the server from the rack"
"Remove the OCP module" on page
223.
"Remove an internal drive" on page
"Remove the internal drive backplane"
"Remove the internal drive cage" on page
91.
"Remove the fan control board (FCB)" on page
"Remove the air flow sensor board" on
132.
"Remove the firmware and RoT security
"Remove a heat sink" on page 181
.
Chapter 5 Hardware replacement procedures
to ensure that you
195.
138.
105.
109.
141.
67.
118.
89.
93.
and "Remove
213