hello everyone ive had a pretty crushing day, i went to my brother place to try and help him fix his more or less new computer! msi z170a gaming pro gigabyte 980 ti extreme samsung m.2 950 pro 256gb 2x8gb ddr4 corsair vengeance 2400 intel i7 skylake 6700k. he was playing grand theft auto v and it came up with the watchdog error blue screen of death. after when it boots into windows he has more or less 5 mins untill it happens aigen. i looked it up on my phone and was told to reinstall windows. so we turned it off compleatly. now it will not post only every like 3rd time we restart... we tryed reseting the bios and everything and still we cannot get it to post every time.