Dell EMC PowerEdge R440 Installation And Service Manual page 74

Figure 61. Removing filler bracket for full height X1 riser
3 Hold the card by its edges, and align the card edge connector with the expansion card connector on the riser.
4 Insert the card edge connector firmly into the expansion card connector until the card is fully seated.
5 Close the expansion card retention latch.
Figure 62. Installing expansion card into low profile riser
74 Installing and removing system components