Insufficent PSU or Faulty GPU out of the box?

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calvin mc5

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Jul 24, 2012
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Upgraded from a 1070 to a 1080ti. I am getting games crashing, random BSOD, computer restarts. No artefacts or graphical errors.

i5 4690k @ 4.4Ghz
CX600M PSU

Could this be due to insufficent power going to my system, or is my GPU faulty? I read online 600W is the bare minimum but I believe this PSU isn't the best and might not be giving me the advertised power, i've had it for a couple years now with heavy overclocks on both CPU and GPU. When I put my 1070 back in it is fine.
 
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calvin mc5

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Jul 24, 2012
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Would this be much better? It is only 50W more but it seems like a better power supply. Am I correct in thinking that the card I linked even if it was 600W would perform better than the PSU I am currently using?

And in your opinion do these symptoms seem more to do with an inadequate PSU rather than a faulty GPU, bearing in mind I am not getting any artefacts or graphical errors?
 
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calvin mc5

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Jul 24, 2012
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Yes I was leaning more towards that seeing as I can play for 3 hours fine sometimes but then other times I could only play for 5 minutes.

If it was a problem with the GPU I would have expected it to be more consistent.
 
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calvin mc5

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Jul 24, 2012
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I did a PSU calculator and it came up to 571W. Guessing that coupled with the fact that CX series aren't meant for high end/powered components and overclocking means that i'm probably cutting a bit short with this PSU even though it says 600W.

I have ordered an EVGA 650W G2. Even if that isn't the problem then atleast I have got a high quality reliable, gold rated PSU, but its looking like this is the problem.

I managed to run 2 3D mark runs through a friends pc and it ran fine, but didn't get to test further because of time constraints. I also noticed that I am getting really bad coil whine when stressing the GPU on my setup, but on my friends there was nothing. Can coil whine be caused by a bad PSU or the power availability being pushed?
 
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calvin mc5

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Jul 24, 2012
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But if the calculator is overestimating a lot and I have a 600w PSU shouldn't that be able to handle the load i'm putting on it then?
 
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calvin mc5

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Jul 24, 2012
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Ah okay so it worked fine with the 1070 but the extra power needed for the 1080ti probably pushed it over the edge, but just barley seeing as it doesn't just straight up not work
 
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