Dell EMC PowerEdge MX840c, Installation And Service Manual, Page: 71 / 111

a. Loosen both the heat sink screws completely.
b. Lower the PHM on to the blue retention clips, following the procedure described in step 2.
c. Secure the PHM to the system board or PEM, following the replacement instructions listed in step 3 above.
NOTE: The processor and heat sink module retention screws should not be tightened to more than 0.11 kgf-m (1.13 N.m
or 10+/-0.2 in-lbf).
Figure 61. Installing the processor and heat sink module
Next steps
1. After installing the processor and heat sink module on the system board,
a. Install the air shroud into the system board .
b. Install the PEM .
2. After installing the processor and heat sink module on the PEM, install the air shroud on the PEM .
3. Follow the procedure listed in the After working inside your sled section.
iDRAC card
In the PowerEdge MX840c, iDRAC is not embedded on the system board. The iDRAC is a separate card different from the 14G
and previous generation. The vFlash card for the PowerEdge MX840c is available on the iDRAC card.
Removing the iDRAC card
Prerequisites
1. Follow the safety guidelines listed in the Safety instructions section.
2. Follow the procedure listed in the Before working inside your sled section.
3. Remove the PEM .
4. Remove the air shroud from the system board .
CAUTION: If either the system board or iDRAC card fails, it is required to replace the system board and iDRAC
card simultaneously.
Installing and removing sled components 71