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Random 0,5-1s screen freezes after installing new gpu

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Last response: in Graphics & Displays
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July 3, 2014 5:00:41 AM

Hello,

I don't know if I targeted a category well, but I'm going to try to tell You about my problem. A few days ago I've installed a new GPU to my PC (MSI GTX 750 Ti) and ever since that I get 0,5-1s screen freezes randomly when playing games or watching videos. Freezes occur every 1-3minutes. I know, it's not a very big deal, but it really annoys me. As suggested, I installed MSI Afterburner too. By the way, from time to time a sound like something disconnects from pc comes up, but no pop-up shows, from time to time this sound is followed by the sound of connecting something back too (like connecting/disconnecting USB sounds). Please, guys, help me fix it.

P.S. I don't know if that helps, but my monitor connects through VGA connection. I may connect through DVI connection, because I have an adapter. I don't know if that would help, but just saying.

My pc:
Motherboard - gigabite EP35-DS3
CPU - Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.4GHz
GPU before - 9600GT
GPU now - MSI GTX 750 Ti
4GB RAM
PSU before - ENERGOM EPS-650W
PSU now - Corsair CX500M
2 HDD
Windows 7, 64bit

I think, in BIOS system is set in Turbo mode instead of a Standart

What I've tried?
- Reinstalling drivers cleanly
- Looking up for malware issues
- Clearing up the registry
- Updating .net framework and c++
July 3, 2014 6:24:55 AM

What is your exact PSU model? If it is not a quality model, it may be problematic and fail on you, regardless of your card being a low power sipper.

First try to revert to Standard mode in BIOS and report back again. A good idea would be to try this 750Ti in another computer as well to make sure it works properly, but I believe it is perfectly OK, your PSU might be an issue here.
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July 3, 2014 6:38:13 AM

PSU model - ENERGON EPS-650W

Going to revert to Standart mode
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July 3, 2014 6:42:15 AM

A very bad power supply, I would replace it ASAP. The sounds you hear are most likely coming from it. It struggles to keep the computer operating, and it may even catch fire if you dont replace it immediately. Get any power supply (500W or more) from this list (look only at tier one, tier two (a) and tier two (b):

http://www.tomshardware.co.uk/answers/id-1804779/power-...
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July 3, 2014 6:53:59 AM

I reverted it to Standart, but freezes are still occuring.

Anyways, those sounds I were talking about, are the same sounds as connecting/disconnecting USB sounds.

So, You are 100% positive that it's happening because of my power supply? Because earlier, before 9600GT, I was using GTX 275 (before it went down), that one consumed a lot of power.
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Best solution

July 3, 2014 7:02:54 AM

herrwizo said:
A very bad power supply, I would replace it ASAP. The sounds you hear are most likely coming from it. It struggles to keep the computer operating, and it may even catch fire if you dont replace it immediately. Get any power supply (500W or more) from this list (look only at tier one, tier two (a) and tier two (b):

http://www.tomshardware.co.uk/answers/id-1804779/power-...


I think you misunderstood OP a little, he is saying that the sound is coming from his computer system, like the one when you connect/disconnect a USB device, not his PSU. According to OP, it most likely means that the graphics driver disconnects and reconnects (crashes?) itself for some reason.

In any way, I agree that trying out the GTX 750 Ti in another computer is the easiest way to confirm if the GPU is defective before trying to get it RMA'd and replaced.
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July 3, 2014 8:21:34 AM

My bad, thought that sounds are coming from the case. Try it in another computer, yeah.
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July 3, 2014 9:50:06 AM

So, we've tested GPU on another computer. The case was even worse. Our diagnose - this GPU is defective, so I will have it RMA'd. Thanks for Your help :) 
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July 3, 2014 9:52:09 AM

Glad that you resolved it, let us know when you get the replacement to confirm everything is fine!
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August 4, 2014 2:43:37 PM

Ok, it took me some time, because I had to change my PSU too. So, my new PSU is Corsair CX500M and once again MSI GTX 750 Ti. Bad news, still getting the lag spikes. May it be because my motherboard has pci express 2.0 and my gpu is pci express 3.0?
By the way, I don't think that I may have gotten a corrupt GPU 2 times in a row.
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August 5, 2014 4:32:17 AM

Check the cpu and gpu temperatures with hwmonitor under load and report them here. Could be overheating issue.
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August 5, 2014 7:26:49 AM

Was playing NBA 2K14 while leaving hwmonitor turned on

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August 5, 2014 11:45:13 AM

I do not think those CPU temperatures are normal in any way possible (around 49 °C idle and 74 °C under load), and I am surprised you haven't fried it yet - according to Intel, the max temperature for your CPU is 62.2/71 °C.

In this case, I would advise you to try and clean the CPU heat sink thoroughly with something like compressed air (don't use vacuum cleaners as they create static electricity which can damage your components faster than heat).
If that doesn't work, you should consider re-seating the heat sink (after cleaning off old thermal paste with rubbing alcohol) with fresh thermal paste.

If nothing helps at all, I would ditch the stock cooler of your CPU and buy a "Cooler Master Hyper 212 Evo" for a change - but that is just my opinion.

Feel free to correct me if I'm wrong :) 
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August 5, 2014 3:56:26 PM

Okay, so, I've more or less dealed with my temperatures, but the lag spikes does still occur. By the way, during the 'lag spike' my fps drops dramatically. Any other solutions?

New temperatures:
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