Hi [NAME] welcome to this free user-to-user Alienware laptop discussion forum.  Get eGPU enclosure: Best eGPU Enclosures – June 2023 External GPU Buyer Guide | eGPU.io. Select eGPU enclosure with large PSU that can power and accommodate your full size gaming GPU(s).  Corporate Dell decided many years ago, not to provide an upgrade of the original 2014 AGA (Alienware Graphics Amplifier). AGA (Alienware Graphics Amplifier) FAQ - Dell Community.  
 Code of Conduct. DELL-Admin>  I did the same!
Area-51m R2, no GPU upgrade, AGA ended, #2