I tried to fit a gpu in my server, sadly it just didn't work, it may have been an issue with the pci extension cable but I don't know, there's a cable from the 10 pin on the mainboard that ends in a 6 pi and 6+2 pin, with the 6 pin it wouldn't even boot, with the 6+2 pin it booted but knocked out half of my ram, so I'm guessing it pulled the 12v rail down too much somehow, or the pci cable was screwed, have another two coming so I can try with a lot more slack.
I was hoping to try some games on it lol.
Here's the video for those interested, also just the slow motion angle grinding lol
I had been using a radeon 5450 to give a little more performance to my virtual machines with the remotefx adapter but for some reason I then had no video output on the card or the rear port on the server, couldn't find anything in the bios to fix it either. (even though the first time I booted up connected to the video card it did work.)