Over the last few days my computer has been acting strange. It has been freezing while playing games, where that task manager won't even let me kill the game. You can't wake it back up by moving the mouse or pressing a key on the keyboard. Earlier today after power cycling it a few times it came up with the "No bootable device" error. I haven't really had any of these issues until the last week or so. I have run a full scan of my computer with Windows Defender and nothing. All drivers are up to date, along with Windows. I don't know what's wrong, please help! Thank you in advance. Oh and if it's any help here's a link to my build: http://pcpartpicker.com/user/EmmetWard/saved/ndTQzy