Ok I have a new Raidmax Case w/ a 420watt powersupply. Everything is hooked up correctly and tightly. Now every so often my pc restarts for no reason. My screen doesnt reset just my case. Like I hear me case restart but my monitor stays at the same screen. Lets say I was on the internet, my case would reset, but my monitor would still show the internet page i was on. Any sugestions?