Dell PowerEdge C8220X Hardware Owner's Manual page 211

5 Remove the front NVIDIA Tesla M2090 GPGPU card.
Remove the two screws securing the air baffle. See Figure 3-47.
a
Lift the air baffle from the sled cover. See Figure 3-47.
b
Figure 3-47. Removing and Installing the Air Baffle
1
1 M3 screws (2)
2
2 left air baffle
Installing System Components
211