I'm new to watercooling, but I got a custom loop set up with all-Corsair parts, including an XG7 for my NVIDIA 3080 Ti FE, which is the only output since I have a K series Intel processor.
It powers on, temps look good, and I'm able to load Steam and launch any game like I used to. I'm able to get to the main menu of whichever game I'm playing, but as soon as the game finishes loading, the graphics lag, and the next minute the screen goes out, and my TV says "no signal."
I am running Linux, but this never happened while I was on the stock cooler. I can't tell the GPU temp, but when I shut the power off and boot to BIOS, it says CPU and MB temps look good.
Any ideas on what could be causing this?