Computer "shuts down and reboots" when playing some games.

AndrXi

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I have my pc for a long time and just recently upgraded it (got new RAM and a graphics card) and after sometime my pc started randomly crashing as in shutting down and after 1-2 seconds comes back on. I took my pc to someone to see what the problem was and ended up with the same problem after sometime so I don't know where I should turn to so I decided to ask here for help.
 
Solution
It is time to remove and and reinstall the heatsink with new thermal paste.

At least you may have found your shut down issue.

For reference, My i5 750 gets into the mid 50s(on a hot day), but it has has aftermarket cooling and the voltage pushed down as far as I can to keep my 300 watt power supply happy and fans quiet. Idle temps are in the low 30s most times.

AndrXi

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Egilbe , the thing is I added the parts and the wierd thing is that when I'm running some games it will cause it to crash and reboot, some examples of crashes are: Mortal: Online , Left 4 Dead 2 and Bioshock Infinite .

But games like The Binding of Isaac , Dark Souls and some other games I don't experience this problem.

To answer your question , I was told by the person that took look at my pc to try to run some games without the old RAM I had (2x 2 GB RAM) and with the one I bought (1x 4 GB RAM) and vice versa. I am currently testing with the 4 GB RAM and experienced a reboot while playing Mortal: Online, however when I removed the old 2x 2GB RAM I played that same game for around 1h - 1h and 30min and experienced no reboots.


System Specs:
(Before)
Graphics Card - Asus HD 5770 1 GB DDR3 (I don't have my old graphics card with me now and don't remenber it fully but I try my best)
RAM - 2x 2 GB RAM DDR3 (Can't remenber)
CPU - Intel Core i5 750 @ 2.67 GHz
Motherboard - Asus Motherboard P7P55D-E
PSU - NOX Urano II 630 W

(After)
Graphics Card - NVIDIA GeoForce GTX 660 Ti
RAM - Corsair Vengeance 4 GB
CPU - Intel Core i5 750 @ 2.67 GHz
Motherboard - Asus Motherboard P7P55D-E
PSU - NOX Urano II 630 W

(Don't know if I got everything).
 

AndrXi

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Nukemaster , a family member and the person I asked to look at my pc both said that my PSU wasn't the issue at hand.
Both said my PSY was good enough.
 

egilbe

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That's a lot more than ram and GPU. Were the other parts used? Is the ram compatible? Ram normally needs to be installed in matched pairs. A 1x4 is not a pair. Some ram runs at 1.65 volts, some runs at 1.5volts, some will run at both, most will not.
 
Please get me a AMP rating on your power supplies 12 volt rail or rails.

IF it is more than one 12 volt rail please look for a combined rating.

Edit.

My friend google says 456 W over its 2 rails. That should work FINE(long as it pushes what it says). My i5 750 + gtx 650 ti runs runs on a 300 watt power supply(264 watts @ 12 volts) :)

egilbe brings up a VERY good point. Some memory does need 1.65 volts(do NOT go past this for the i5 750 as it is not good for the memory controller.). You may be able to set the memory to run at 1333(I think that was the max supported for that cpu).
 

AndrXi

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I downloaded HWMonitor and tried to start a game and the CPU was at 70ºC (not playing really playing just loading the game , on login screen)
so I'm thinking about wether it is overheating or not , some insight please.
 
The stock cooler can get hot(look at how thin that sucker is). 70 at load is not unheard of.

Maybe we should look at the cpu temps first.

Get Prime95 and run it with HWmon. It it passes 75-80c for some users you should shut prime95 off()File -> Stop. When asked, select "Just stress testing" you do not have to join GIMPS.

Run in place fft(Options - > Torture Test) test to see how hot things get it should reach near max temp in just a few minutes.

THIS TEST IS VERY HARD ON THE CPU. IT WILL GET HOT FAST.

I would also be VERY interested to know your vcore.
 


I think you saw a link to game debate. I think game debate does not yet know what a multi rail power supply is yet. If it is 22 amps, then it is about as good as my media centers 300 watt unit and a 5770 would be about the MAX for it for sure.

For the OP's sake I hope this is accurate
http://www.realhardtechx.com/index_archivos/Page2438.htm
 

AndrXi

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I ran a Prime95 stress test and got hot really fast , took like 5 seconds to get to ~90ºC , so I stopped it.

Edit: I would really like to post the max "scores" I have on HWMonitor.
 

egilbe

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no, that's not normal at all. That's way above the thermal threshold for that CPU. Have you replaced the HSF at all? Did you remove it and not replace the thermal paste?
 

AndrXi

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Looks like I really need to replace the thermalpaste , but I don't think just replacing it will suffice , I saw some crazy s***t on HWMonitor regarding temperatures , would really like to show it.
 
It is time to remove and and reinstall the heatsink with new thermal paste.

At least you may have found your shut down issue.

For reference, My i5 750 gets into the mid 50s(on a hot day), but it has has aftermarket cooling and the voltage pushed down as far as I can to keep my 300 watt power supply happy and fans quiet. Idle temps are in the low 30s most times.
 
Solution

You can upload an image to tinypic/imageshack or another image host and link us here.

I have seen some interesting hwmon readings too(mostly a split second 10XXX fan speed ) or strange temps, but overall, I find it to be a solid program.

Check out the random 89c for "cpu" and the +12 volt readings
mediacenterpowerjan2013.png
 

AndrXi

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If by HSF you mean the fan over the CPU , I cleaned it sometime ago when this started happening and gave it a quick clean not too long ago , the CPU and the fan is clean , I'm currently just missing the thermalpaste which I will have to buy.