Quote Originally Posted by Monkey View Post
This was my issue and my fix. But I do agree with the PSU issue too. First give a simple clean up a try and try some of the free suggestions before going out or a new PSU.
He has another thread in tech support section and we came into conclusion that it's a CPU overheating issue.

http://forum.square-enix.com/ffxiv/t...11#post1373211