I apologise if I formatted anything wrong on this post, this is my first one on Tom's hardware. I'll get right to the point, I installed a new motherboard a couple days ago because my old one had broken ram slots so I got a new one to fit all my new ram in. After installing the motherboard, my PC would randomly pick times to restart. Even stranger yet, some games seem to restart my PC faster than others (they aren't difficult games to run). After installing the motherboard, I got a little notification to activate windows. I thought that was the issue so I did it and it still kept restarting. I have tried everything under the sun to fix this, including installing a new psu, making sure everything was seated correctly, reinstalling windows, resetting the PC to factory settings, turning off auto restart and more. Ther are two error codes I got, one was watchdog clock timeout, and the other was irql not less or equal. I would really appreciate some help because I am very lost and this is incredibly annoying. I will add that I don't think this is a overheating issue. Thanks anyone for the help!