Removing and replacing the system boardRemoving and replacing the system board
PrerequisitesPrerequisites
If persistent memory modules are installed in the server and are encrypted with local key management, do one of the following:
Manually retrieve the persistent memory module passwords from the server (user-generated passwords only)
Export a password file to a USB key.
Hewlett Packard Enterprise recommends exporting the password file to a USB key.
For more information, see the Intel Optane persistent memory 100 series for HPE User Guide on the Hewlett Packard Enterprise website
(https://www.hpe.com/info/persistentmemory-docshttps://www.hpe.com/info/persistentmemory-docs).
ProcedureProcedure
Removing the system boardRemoving the system board
1. Power down the server.
2. Remove all power:
a. Disconnect each power cord from the power source.
b. Disconnect each power cord from the server.
3. Remove the server from the rack .
4. Remove all power supplies .
5. Remove the access panel.
6. Do one of the following:
Remove the air baffle.
Remove the 4 LFF midplane cage .
7. Remove the primary or secondary PCIe riser cage .
8. If installed, remove the tertiary PCIe riser cage .
9. Remove the FlexibleLOM.
10. Remove all DIMMs.
Be sure to note the DIMM slot locations in which each DIMM is installed. These components must be installed in the same locations
on the new system board.
11. Remove the persistent memory modules installed on the system board .
Be sure to note the DIMM slot locations in which each persistent memory module is installed. These components must be installed in
the same locations on the new system board.
12. Do the following:
a. Observe the guidelines and procedures for NVDIMM relocation .
b. Remove all NVDIMMs
13. Remove the fan cage.
14. Disconnect all cables connected to the system board.
15. Observe the following cautions.
CAUTION: CAUTION: Be sure to loosen each heatsink nut in the order indicated. Otherwise, damage might occur to the
heatsink or processor.
CAUTION: CAUTION: Install the processor heatsink assembly as soon as possible after removing it. Do not leave the processor
socket unpopulated for extended periods of time.
16. Remove the processor-heatsink assembly:
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