Hi about a month ago my computer just started shutting off at random diden' matter if I was watching a video or just surfing the web now it is starting to get weird screen glitches and shuts off I have checked the memory with windows diagnostic tool and says its fine I think it might be my power supply any help would be great.
https://www.youtube.com/watch?v=BOQxXd2LizE&feature=youtu.be
https://www.youtube.com/watch?v=BOQxXd2LizE&feature=youtu.be