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Sudden reboots during heavy duty gaming.

Last response: in Components
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September 16, 2013 8:46:06 AM

Hello everyone,

My rig:
GIGABYTE ga-990fxa-ud3 (AM3+)
AMD FX-8150 3.6Ghz 8 core (Fairly new)
NVIDIA GTX 770 4GB (New)
4 x 4GB RAM (Fairly new)
Sound Blaster X-fi extreme PCI
2x 1TB HDD's (7200RPM)
1x SSD 250GB
TX650W Corsair PSU (2 years old)

Since the last 6 months I have been experiencing system reboots during the most demanding applications. (Battlefield 3, two Eve windows, recently Rome 2)

The reboots occur without warning. No audio or graphic artefacts and the fans seem to be spinning at a fairly normal speed. At first I thought it was a temperature issue with the CPU chip so I installed a 2x120 CPU cooling unit. The issue persisted. Temperature no longer exceeded +/- 65 degrees Celcius. The reboots occur immediate without a hassle meaning it seems as if nothing happened when I log back into windows.

I am now wondering whether it might be my PSU that is the leading cause to these crashes. How can I tell?

I hope I have been clear in my problem description and thank you for reading.
September 16, 2013 8:53:15 AM

might be. might be the wall socket. try another in a different room.
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September 16, 2013 9:04:51 AM

swifty_morgan said:
might be. might be the wall socket. try another in a different room.


It is very difficult to test this with my setup in another room unless I use a bunch of cord extenders. I imagine that degrades the test result?
My connection is as follows: Power LAN -> Power extender -> PSU.

I shall plug my PSU directly into the wall socket and test this setup by playing some of the aforementioned games.
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September 16, 2013 9:29:37 AM

Have you overclocked your processor? Could be you arent providing enough voltage to it for heavy workloads. Also, recommended max temp is 61C so I wouldn't go past that. Could be causing an issue.
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September 16, 2013 9:40:42 AM

your cpu have a 61 degree maximum temp... if you have more then that.... thats why your pc restart

edit'' sorry i just see the same answer above me from czar ''
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September 16, 2013 10:39:01 AM

I am greatful for your responses guys!

@ czar357 and badboyrog: I have not overclocked any of my PC's components.

I don't understand where this heat issue is coming from then. When the reboots started I had a different CPU. I reapplied thermal paste several times using the guide here on Tom's. Now with my current CPU the problem persists. I don't see what could have changed from before that time that warrants such errors.
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September 17, 2013 11:10:52 AM

What were the temps on the old CPU? Either way, over 60C is often pushing the limits with an AMD chip.
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September 17, 2013 3:13:55 PM

pull 2sticks of ram. use machine.
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October 5, 2013 3:57:27 AM

I ran Prime95 for a couple of hours without issues. I then ran Furmark's GPU torture test without problems. Starting them at the same time rebooted my PC 100% of the time and always immediately. I felt that this was a strong case for power failure, in this case powering my GPU and CPU at high performance at the same time.

I bought a Corsair CX750M and after installing my problems are gone. I can run both Prime and Furmark at the same time.

Looking back at the voltages it does seem that the new PSU has more stability. Especially on the -12V rail. I could not find a lot of info about this rail and what it powered so I neglected it and figured it was normal to fluctuate.
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October 5, 2013 6:26:56 AM

Spoke too soon. PC still crashes. Temperatures are fine. Crashed on the loading screen of BF4.

I have reinstalled my gfx drivers to no avail.
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October 5, 2013 7:55:36 AM

Chimaeira said:
I am greatful for your responses guys!

@ czar357 and badboyrog: I have not overclocked any of my PC's components.

I don't understand where this heat issue is coming from then. When the reboots started I had a different CPU. I reapplied thermal paste several times using the guide here on Tom's. Now with my current CPU the problem persists. I don't see what could have changed from before that time that warrants such errors.


What type of CPU cooler do you have on this? Tell me it isnt the stock one...As far as these reboots, you list a few fairly new things. Have you tried going back to your old processor for a while? Put that in, do what you have been doing and see if there is an issue. If you run fine then you will have at least narrowed down the location.
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October 6, 2013 1:04:59 AM

czar357 said:
Chimaeira said:
I am greatful for your responses guys!

@ czar357 and badboyrog: I have not overclocked any of my PC's components.

I don't understand where this heat issue is coming from then. When the reboots started I had a different CPU. I reapplied thermal paste several times using the guide here on Tom's. Now with my current CPU the problem persists. I don't see what could have changed from before that time that warrants such errors.


What type of CPU cooler do you have on this? Tell me it isnt the stock one...As far as these reboots, you list a few fairly new things. Have you tried going back to your old processor for a while? Put that in, do what you have been doing and see if there is an issue. If you run fine then you will have at least narrowed down the location.


Someone pointed me towards the APM Master Mode in the bios.

I disabled it and haven't crashed since. I do not understand what this mode does exactly as sources on the internet tell different things but it solved my problem. I run Battlefield 4 fine on Ultra so there's no noticeable performance hit.

Perhaps it has to do with the FX8150's turbo mode and my Mobo not being able to cope with it properly?
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Best solution

October 6, 2013 9:39:13 AM

Could be. I always manually set the CPU voltage and CPU operating speed without turbo but I wouldnt doubt that it could have something to do with that. Glad you got it fixed.
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