Sorry. I should have made it clearer that I have already sent the 760 back under warranty. I am replacing it with a 770. The system builder asked me to send my system event log. From this information they said the gpu driver was crashing under normal usage. They said it was most likely a gpu card fault but less likely could be a PSU issue so I am swapping out the gpu first. I didn't know anything about the system event logs. I am going to read up on diagnostics and using the event log as it sounds really interesting. Looks like gobbledigook at the moment.