What does an overheating based crash/restart look like? Amongst other issues.

BreezyKun

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So I recently got through with some upgrades. GT 630 and some generic 400w PSU (Brand was Solytech SL-F400 for those curious) to a GTX 950 and a Corsair CX500 (500w)

PSU came in the mail first so I popped that in, and played some overwatch to monitor my gaming temperatures (Something overwatch is able to do when you press ctrl shift R) after the new installation. A typical 45-50C rose to 66C, and that's just after the power supply.

New GPU came the next day, and after a whole day of screwing up an installation and unscrewing it up, I was in business.

30 seconds into a match of 1080p 60fps overwatch, I hear a 'bzzt' and everything freezes. Visual is frozen but present, and I notice everything plugged into USB has shut off. Plugging my mouse out and back in makes it blink on for a second before going dark again. The only thing I can visibly tell was on was my case fans.

30 seconds later my PC restarts out of its own volition, no error report, just a restart.

So I try another game; Mirrors Edge for a good 20 minutes, seems okay, so I try Overwatch again. Not even 5 minutes in and it freezes the same way.

Try some more games. Borderlands 2 for a minute or so, Skyrim that auto-adjusted itself to ultra-high quality played for a minute or so. So I move onto Assault Android Cactus and adjust the settings to high, and I encounter the same problem in less than a minute after adjusting graphics.

By trying other games, my theory was either an Overwatch problem or a heat problem. Given the power requirements of the GTX 950 is 300w minimum, I'm tempted to reintroduce my old PSU since there seemed to be temp increases after the power supply alone.

Further testing brought about the same issue after 10-15 minutes of Borderlands 2 on high-medium with medium physX. And then again with just a minute or two of staring at Overwatch's menu, before which the game's temp monitor climbed to 71C and then. The issue doesnt seem directly connected to overwatch and has happened with two other games, leading me to think its a heat issue.

My processor is an i5 3570, my case is an NZXT Vulcan (rather small), and my CPU cooler is an antec sealed system liquid cooler.




 
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I don't think its a heat issue, it takes a LOT of heat to encounter a thermal shut down, like, 90c plus at minimum.
Additionally your BIOS will tell you when you reboot that it did in fact shut down on purpose due to a thermal issue.

I think your CX PSU is bad. The situation you describe is very common with extremely cheap PSUs, not that you have a cheap PSU, but the problem is very similar.

 
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BreezyKun

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Hmm, okay. I will try reintroducing my old power supply since it's still above the needed power for the GPU, and see how far I get. I'm told that below 70C is considered safe temperatures, should I be concerned about climbing up to 70 after these new parts?
 

BreezyKun

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Confirmed! Faulty PSU, played overwatch with my old one for a little less than an hour with no issues.

 


That's whats up! Glad it worked out.
 


Okay right there can be a 'short' you created "after a whole day of screwing up an installation and unscrewing it up" OR that the PSU isn't powerful enough for the GTX 950's demands (may say 500W but under 'load' - aka heavy demand, dips down to 420W etc. and BBZZZT!),



Back to a SHORT due to something touching something else it shouldn't be. Check your wiring, always tie down things, don't leave them loose and hanging. You MIGHT have permanently damages parts at this point (GPU, MOBO, CPU, RAM). The best test would be to use another GPU and see how things go, then try a another 950 in this computer to see what happens / try your 950 in another computer and see what happens. Basically this is testing / diag mode for hardware, you can't "see it" otherwise and need a 'working model' to gauge the differences from.



Software itself can't cause hardware issues, except where a software controls say the fan and forces it to overspeed up and break the bearings in it. Otherwise no software really can 'break' a GPU or otherwise.

That said, it isn't heat, it is power. Most likely your still 'undervolt' when you put in heavier demands (as your test proves). More demand MORE POWER!!! (like the old Star Trek episodes) but your system doesn't have MORE so.. BBBZZT. I woudl try with a 650 -750W PSU instead.

Also I like to note, ANY GTX x10-x50 (630, 950, 710, whatever) are NOT gaming cards. These are lower performance cards and are for 'general use' or 'very light gaming demands' (aka NOT Overwatch on HIGH or Medium but LOW) because they are not physically designed for 'gaming' as your trying to apply for it. x60-x80 (1060, 680, etc.) cards are designed specifically in a 'step level of power' to support gaming, and thus can play games "Borderlands 2 on high-medium with medium physX" or higher because they physically are built to support those demands and higher.
 
A SHORT?! A short is not something that gives intermittent problems, a short, by definition is a FUSING of two electronic connections due to over voltage, debris, etc. I promise there has been no short. Promise promise. Shorts involve light smell and smoke.

GTX x50 not for gaming....Other than you know, the legendary status GTX 750TI that is in more "gaming" rigs than any other card on the market. But... ok.



 

BreezyKun

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When I think about it, the buzz sound may have been audio rather than physical, and I'd have reported any smoke or smells. My old one is doing fine, I suppose the question is if I should still look into a different 500w upgrade.
 


I have had shorts before NOT involve smoke, but yeah do smell something amiss for a second. Also that is commonly the thing a 'untrained/noncertified' sort doesn't equate to a short, normally the BBBZZT sound especially with other described problems he stated (and I quoted) commonly a small 'crosswire' or such touching they miss and causes it.

As for GTX x50, note I said x50 NOT x50TI, for the very reason your saying, as it is a specialized card and the OP stated a x50 NOT a x50TI, two DIFFERENT things. I had seen the official previous marketing and technical documentation NVidia displayed over the iteration to differentiate the purpose of Geforce, Geforce GT and Geforce GTX cards, similairly to how cars come in EX, LX, etc. models and what 'performance' difference each level provides. As I said, the x10-x50 were grouped in the Economy class, if you will, and labeled for 'Day to Day and "light gaming" usage", while x60-x80 were for performance and 'gaming solutions'. They had a special segment for the TI as the budget+performance solution separately, and example is here on Nvidia's own LINESHEET to explain the difference and addition http://international.download.nvidia.com/partnerforce-us/Product-Linceard/NVIDIA_GeForce_GTX950_Linecard_2015Aug20_US_HR.pdf.