around 6 months ago i built a gaming pc. recently while i been playing games my monitor will go black and say "no input". i have been looking all around the internet and cant find answers. the only leads i have found are saying that is could be either a psu or a gpu problem. my psu is a cooler master 850v and my gpu is a msi gtx970. i know its not my drivers because i uninstalled them and replaced them and the problem persists. i have checked my temperatures under load and it is only around 60 degrees Celsius. please help me i am lost on what to do.