just to give a bit more history on this problem, I finished building my pc a couple of days ago it has the z87x-d3h mobo. Everything was working fine initially until I started playing a game (league of legends) then it would shut down down about 5 mins in. Thinking it might be overheating I downloaded speedfan and saw that it was doing this even though the cpu and gpu weren't that hot. So I decided to download prime 95 and do a stress test, it ran for 10s and the pc shut down in the same way. So I left it at that. Next day I booted again tried to run the stress test along with speedfan to get a read of the temperature, this time it instantly shutdown as soon as the stress test started and wouldn't turn back on.
Thinking that this was a PSU problem, I bought a new PSU plugged it all in and found that the fans spin for maybe half a second and then stop, trying to turn it on after that wouldn't spin the fans at all (unless I pulled the power lead out and put it back in).
The weird thing is, if I remove the 8pin motherboard cable the fans will spin for around 3 seconds and then stop and then repeat the process.
So what could be the problem, motherboard is the prime suspect but why would a stress test or games for that matter shut the pc down even though it's not overheating?
Edited by angeal1, 04 October 2013 - 09:10 AM.
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