Lenovo ThinkEdge SE350 V2 Hardware Maintenance Manual page 112

About this task
Important:
• Removing and installing this component requires trained technicians. Do not attempt to remove or install
it without proper training.
• When replacing the system board, 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, 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.
To avoid potential danger, make sure to read and follow the safety information.
• S002
CAUTION:
The power-control button on the device and the power switch on the power supply do not turn off
the electrical current supplied to the device. The device also might have more than one power cord.
To remove all electrical current from the device, ensure that all power cords are disconnected from
the power source.
• S012
CAUTION:
Hot surface nearby.
Attention:
• Do the following before removing the system board to backup important data:
1. 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.
2. If the server has SED installed, maintain a backup of SED AK. See Manage the Self Encryption Drive
Authentication Key (SED AK) in Setup Guide for more details.
3. Use the Lenovo XClarity Essentials OneCLI to save the system configuration to external media.
4. Log on XCC Web GUI and backup config to external media.
5. Download the XCC Service Data to external media.
• Read "Installation Guidelines" on page 1
you work safely.
ThinkEdge SE350 V2 Hardware Maintenance Guide
104
and "Safety inspection checklist" on page 2 to make sure that