Dell PowerEdge R940 Service page 9

Figure 7. Installing processor and heat sink module
15. Push the blue retention clips inward to allow the PHM to drop into place.
16. Using Torx #T30 screwdriver, tighten the screws on the PHM in the order below:
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 of the screws completely.
b. Lower the PHM onto the blue retention clips, follow the procedure described in step 15.
c. Secure the PHM to the PEM, follow the procedure described in this step above.
17. Repeat the steps 11 to 16 to install the other PHM.
18. Install the DIMMs on the DIMM sockets on the PEM.
NOTE: All DIMM sockets are required to have either DIMMs or DIMM blank installed.
19. If applicable, move the NVMe extender cards from the system board to the appropriate expansion card riser
slot per the Installation and Service Manual or System Information Label (SIL), and connect the new NVMe
cables per requirement. For more information on NVMe cabling, watch the video at
PER940/4S-NVMe-cabling.
Figure 8. 4S NVMe cabling
20. Remove the expansion card riser blanks from the rear of the system.
www.Dell.com/QRL/
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