is my graphics card busted?

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Nine

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Jul 16, 2013
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10,510
Hello guys, i need some clarification.
Woke up this morning, pc starts up, but monitors stay black. After some reading, i try connecting monitor directly to motherboard and find out that its working fine. SO my question is, despite the fact, that i see my cards fans running and some lights on, its basically busted and i need to get new one? Or there could be some other problem? Want to make sure before i run of buying new one.
Pc is more than 4 years old.
Specs
intel i7 4770k
asus gtx 780
RAM- crosair 8gb (2sticks)
PSU - corsair HX850
If it helps, few weeks ago, i heard strange noise. It was graphics cards fan, that i dusted off and seemed to work fine for a while.
 
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A
If I recall correctly, I was saying that It might be useful not to jump to a conclusion that the GPU is dying. When he was almost sure that it is the PSU, I was again suggesting to test it a bit longer. No one has said either the GPU or PSU was dying. He is testing, and the result will lead to another possibility. This is what we call, troubleshooting.
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MicroGuyCRO

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Jun 21, 2014
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by trying to power the pc with a different psu, maybe from a friend of yours etc
 
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N

Nine

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Jul 16, 2013
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10,510
so i did things differently, i put my graphics card into way older pc with some PSU 550W, and it seems to work, screen showing stuff, so in conclusion its my PSU? Now why would my PSU fail, is corsair bad, or just bad luck in general, what PSU would you recommend, and can i just switch main block with new one or do i need to change wires too??
 
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MicroGuyCRO

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Jun 21, 2014
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you should probably change psu including the wires.
 
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airbus320

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Jun 22, 2012
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Maybe..you just want to wait and fooling around with graphic intense program and see if it is really the PSU.

I am having nvlddmkm error and bsods. And it seemed to be gone after I cleaned up dust and reformat windows. And the next morning, bang.. the bsod and freezes and crashes struck again. Just do the test a littlw longer
 
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Nine

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Jul 16, 2013
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well, putting gpu out and in, kinda helped, everything is working, fans are running etc., even after restart everything is normal, so i will kinda wait it out, but i still dont understand why psu failure would only affect gpu, should fans go slower and other stuff happen?
 
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turkey3_scratch

turkey3_scratch

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Jul 15, 2014
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There's a lot of stuff incorrect about this.

For one thing, the PC is working fine when plugged into the motherboard. So the likelihood of it being a GPU or motherboard problem is 99% above that of the PSU causing any issue, especially considering it's a quality unit. However, since the GPU worked in another machine, it could be the motherboard, but I think you are too quick to point fingers at the PSU.

Secondly, a power supply can't "supply inadequate power". It doesn't happen. You would know because a protection circuit would kick in long before the rare, theoretical power limit is ever reached. That limit would also be very high, under extreme load that is far higher than when the computer is just turned on and idle. The PSU would most likely burn long before it would ever reach this theoretical power maximum. Or the voltage would be completely out of spec and more imminent problems would be present anyway.

Point be told, a power supply won't hit a maximum on power. It would have to be a specific design with overrated MOSFETs and it also would have to have overridden protections for this to happen.

Note: A power supply does not supply power. Power is the rate at which energy flows. What it does is distributes energy. ;)
 
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airbus320

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Jun 22, 2012
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If I recall correctly, I was saying that It might be useful not to jump to a conclusion that the GPU is dying. When he was almost sure that it is the PSU, I was again suggesting to test it a bit longer. No one has said either the GPU or PSU was dying. He is testing, and the result will lead to another possibility. This is what we call, troubleshooting.
 
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