Dell PowerEdge R940 Instruction page 8

a Partially tighten the first screw (approximately 3 turns).
b Tighten the second screw completely.
c Return to the first screw and tighten it completely.
If the PHM slips off the blue retention clips when the screws are partially tightened, follow these steps to secure the PHM:
a Loosen both the screws completely.
b Lower the PHM onto the blue retention clips, follow the procedure described in step 8.
c Secure the PHM to the PEM board, follow the procedure described in step 9.
16 Repeat the steps 12 to 14 to install the other PHM.
17 Install the memory modules on the memory sockets of the PEM board.
18 If applicable, move the NVMe extender cards from the system board to the appropriate I/O riser slot per the Installation and Service
Manual or System Information Lable (SIL), and connect the new NVMe cables per requirement. For more information on cabling,
please watch the video at www.Dell.com/QRL/PER940/4S-NVMe-cabling.
19 Remove the protective covers on the PEM that covers the riser connectors.
20 On the riser, rotate the release lever to upward position and insert the riser to the system.
Figure 8. Installing the expansion card riser
21 Align the guide rail on the side of the riser with the slot on the side of the system and lower the riser into the system.
22 Lower the release lever until the connector on the riser connects with the connector on the processor expansion module.
23 Repeat the steps 19 to 22 to install the other riser.
24 Install the four socket air shroud on the system.
8 Upgrading the dual processor to quad processor system for the PowerEdge R940