Hello all, first time poster, long time EVGA fan and user :)
 
Never had an issue before but having one now. Had two 1080s for all of two days and one has developed an artifacting problem. At first I thought it was just from while I was trying to find a stable overclock and so reverted to stock. But the issue still persists and is most noticeable in gaming or video.  I managed to capture a video of said issue. Will I be able to RMA this card or does it void the warranty to do custom cooling? Nothing has been tampered with in any way and obviously I've never had any leaks. Obviously it goes without saying that I didn't go mental with voltages or reach an insane temperature with watercooling. Thanks in advance 
 
EDIT: Just to add to the confusion, I tried DOWNclocking the troubled card from stock and the issue is gone....so stock clock is resulting in issues on this particular card now?

I would just rma with evga.