PC keeps rebooting whenever playing games.

[Fleron]

Hey everyone, I'm aware that this problem has been posted lots of time before, but I'm just insuring myself, so there isn't anything specific that I could do.

So, a few days ago, I did an upgrade. I bought this bundle. It's all overclocked and apparently stable.
http://www.ebay.co.uk/itm/121710541287?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

My old specs:

Mobo: gigabyte ga-h55m-ud2h
CPU: intel i5 650 3.2 Ghz Dual core
And some kind of shitty fan

And now my currents total specs:

Mobo: Asus z97-p
CPU: Intel i5 4690k quad core (overclocked to 4.5Ghz)
GPU: Gtx 760 DirectCU II
PSU: Xilence 550w
COOLER: Thermal Take Contac,
RAM: 16GB (2x8GB) DDR3 1866Mhz

So after the upgrade, everything seemed ok, just before the pc started shutting down in the middle of gaming. For no apparent reason. At first I used to get a message saying about a power surge. But after reading some forums I intended to turn the warning off, as it was too overprotective. But the problem didn't disappear. It was still there, my pc kept restarting after 10 minutes or so into the game.

At first some games like csgo or league of legends, didn't make my pc restart. But others like rocket league, made it restart instantly or after a few moments. So I thought maybe really graphical games made something overheat or something. My cpu temperatures were completely fine, motherboard temp aswell. I've noticed that my gpu got really hot really fast. So I went in the software and set my fan up to 55%, this seemed to fix the problem for a bit. It didn't restart for a few hours, I thought I'm good. But after I shut down my pc and got back on it later, the problem came back. I tried putting the fan speed even higher but it didn't help.
I did run some stress tests on the gpu, it seemed fine, but I didn't keep it for too long, because I was paranoid for it to burn or something heh. But the temp seemed alright now, maximum reaching about 62 in games. Cpu max 60 aswell. Which is nice for an overclocked one.

The voltages, I'm sorry but i'm really lost with them.
At this moment that I'm writing this post, the voltages show they are
VCCIN 1.800
Vcore 1.268
+12V 12.312 (i've noticed it falls to 12.000 or 1.8 in rocket league for example)
+5V 5.130
+3.3V 3.408

I don't know guys, anything I can try? Tips? Anything helps, thanks, tell me if you need any more info

 

[KublaiKhan]

Have you any performance data drawn when the machine was NOT overclocked?

If you're manually controlling the speed of the fans, setting them low while raising speeds and voltages, these are all problems you will encounter. I'll just suggest you're being overly ambitious with overclocking and cooling.

In comparison, my CPU runs around 25°. It might get closer to 30° when running more intense games.

 

[Fleron]

So what are you trying to say, what should I do? The cpu was pre-overclocked, if you're saying I should downgrade it I could but I don't want to mess anything up.

 

[adamjosiah]

By pre-overclocked, do you mean the pc was overclocked by a service before being sent to you, or that your cpu has turbo boost?

You said you ran a gpu stress test, how about a cpu test?

 

[IamTimTech]

I imagine that the Ebay vendor overclocked that processor themselves. Go into the bios and reset everything back to stock. There is a good chance that they had the parts on a test bench or in a high airflow case making it "stable" while you actually have it in a case where it gets too warm. The system just resetting sounds like a thermal issue to me. So as I first said, switching back to stock settings and starting fresh is the way to go. If you look up your motherboard's manual and read it then it should familiarize you with all of the settings which will be important in tuning/overclocking.

Also a "xilence" PSU is not a reliable unit. You absolutely should not be overclocking on it. Truth be told it should be replaced whenever possible. Those power surges are being caused by your inadequate power supply and are a tell that it is not doing it's job properly. Your system is most certainly not being "over protective".