Specs:
Ryzen 7 3700x
RTX 2070 Super
2x8gb G.Skill Trident Z neo 3600 cl16
Gigabyte x570 I Aorus pro wifi (itx)
I just set up some custom water cooling and afterwards I noticed that my gpu would randomly hit 100% usage while fps was stuttering around in the 100-200 range. It took me a while to realize (because I dont usually monitor gpu clocks) that the clock speed would dip to around 500mhz when playing games or doing any stress testing.
Before I water cooled everything, it ran fine getting up in the 400-500fps range in csgo at only 70% gpu usage. I have tried clean installing gpu drivers, re-installing windows, playing with light oc's, and disabling programs such as rtx voice and other things that could impact gpu performance. temperatures are good, even running at basically silent fan speeds it doesn't get above 80C. Clock speeds at idle usually stay around 500mhz too, but when I start something intensive, the clocks boost up to around normal and then fall back down to 500mhz.
Thanks to anyone who can help!