Alienware Area-51 R3 Threadripper Edition Service Manual page 72

6 Press the release tabs on the power-cable connectors to disconnect the
power cables from the graphics card.
NOTE: The location of the power supply connector (PCIE1, PCIE2
and PCIE3) varies depending on the video card installed.
Figure 25. Removing the graphics card
1 screw cover
3 graphics card
72
2 screws (2)
4 power cables (2)