Dell PowerEdge C8220X Hardware Owner's Manual page 210

CAUTION:
that the back GPGPU card riser is installed on the sled cover with the proper
screw holes. If the GPGPU card riser is not installed with the correct screw holes,
the GPGPU card will not seat properly into the riser connector. Be sure the card
riser is installed through the "type A" screw holes. See"Installing the Back GPGPU
Card Riser" on page 269 for the location of the screw holes.
NOTE:
The NVIDIA Tesla M2090 GPGPU's power reading can only be retrieved via
out-of-band management after the OS driver is loaded and the nvidia-smi utility
(nvidia-smi –pm 1) is manually activated.
1 Remove the sled from the enclosure. See "Removing a Sled" on page 155.
2 Open the sled. See "Removing the Sled Cover" on page 181.
3 Remove the five screws securing the top cover. See Figure 3-46.
4 Lift the top cover from the sled cover. See Figure 3-46.
NOTE:
Be careful not to damage the twin axial cable on the back GPGPU card riser
when removing the top cover. See Figure 3-46.
Figure 3-46. Removing and Installing the Top Cover
1 top cover
3 twin axial cable
210
Installing System Components
When replacing the back NVIDIA Tesla M2090 GPGPU card, ensure
1
3
2 M3 screws (5)
2