Dell PowerEdge C8220X Hardware Owner's Manual page 212

Remove the four screws securing the front GPGPU card assembly to
c
the sled cover. See Figure 3-48.
Grasp the GPGPU card assembly by its edges, and carefully remove it
d
from the front GPGPU card riser. See Figure 3-48.
NOTE:
An emergency throttling cable is connected underneath the GPGPU card.
Disconnect this cable before lifting the GPGPU card assembly from the sled cover.
See Figure 3-48.
Figure 3-48. Removing and Installing the Front GPGPU Card Assembly
1
4
1 M3 screws (4)
3 emergency throttling cable
212
Installing System Components
3
2 NVIDIA Tesla M2090 GPGPU card
4 front GPGPU card riser
2