The procedure How to Remove Components to Reduce Weight describes how to remove components from the server. After the server is installed in the rack, you must replace the components.
Caution - All CPU modules (CMODs) and PCIe EM modules must be returned to their original locations. Failure to do so can result in system failure.
Note - When you reseat the CMODs, simultaneously push both handles past the locks, until they touch the chassis. This extra motion ensures that the pawl seats the CMOD connectors correctly.