My new gaming PC keeps crashing when I play games. Sometimes it will be fine, I was playing Crysis 3 for hours earlier, but other times it wont.
When it crashes the screen goes black and sound from the game continues for a few seconds then buzzes.
Next the system sounds like it's rebooting but doesn't post.
Sometimes I'll switch it off and on with the power button and it will either not post or beep 5 times (2 beeps then 3 faster beeps)
switching off the power supply at the switch then back on makes it able to boot properly.
it has also frozen a couple of times on the desktop which is odd for a new PC.
I've checked the temps, CPU doesn't go above 60c with prime95 and GPU doesn't go above 70c with intensive gaming.
I've also run memtest86 and the only RAM errors were on the hammer test (not important, very unlikely to cause a problem realistically)
I even updated the bios to the latest version.
specs here: http://uk.pcpartpicker.com/p/XkX3nQ
Anyone have any idea what could be causing the problem?