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Would it harm my graphics card if I plugged it into its OWN PSU?

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  • Graphics Cards
  • Graphics
Last response: in Graphics Cards
December 19, 2013 11:00:48 AM

Hi folks-
Okay, heres my problem. I have a new 770 GFX card and I'm only getting like 25-40 FPS in most of the latest triple-x titles and most of the benchmarks i'm seeing for systems similar to mine are getting a solid 60-

So I've been looking into the issue and the only thing I can see that would be giving me such numbers is that my card is only pulling about 80% power. I have a 650W PSU but who knows, it could be a bad one. So to test this I thought about buying a second PSU and plugging it directly into my GFX card instead of having to change out my old one for a new one when this may not be the problem and I could just have a bad card.
So, my question is, if I plug a second PSU directly into my card, will it harm anything in my system?

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a b U Graphics card
December 19, 2013 11:04:30 AM

mrks said:
Hi folks-
Okay, heres my problem. I have a new 770 GFX card and I'm only getting like 25-40 FPS in most of the latest triple-x titles and most of the benchmarks i'm seeing for systems similar to mine are getting a solid 60-

So I've been looking into the issue and the only thing I can see that would be giving me such numbers is that my card is only pulling about 80% power. I have a 650W PSU but who knows, it could be a bad one. So to test this I thought about buying a second PSU and plugging it directly into my GFX card instead of having to change out my old one for a new one when this may not be the problem and I could just have a bad card.
So, my question is, if I plug a second PSU directly into my card, will it harm anything in my system?


Think your jumping the gun a little. Firstly list the rest of your system specs. If your 650w PSU is a good brand it shouldn't be the problem. Liist your CPU, Ram, Mobo etc. That will give us a better idea :) 

edit: don't buy the second PSU just yet :) 

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a b U Graphics card
December 19, 2013 11:11:56 AM

You forgot to include your full system specs. The bottleneck could be somewhere else.

You didn't even say what PSU you got, 650W doesn't tell us much... You need to provide brand & model for each part for us to make sure there's no bottleneck or problem elsewhere.

Thanks.

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a b U Graphics card
December 19, 2013 11:12:14 AM

It won't harm it if you do it correctly, but if you think your PSU is bad, replace it with something good. Running your CPU, motherboard, and everything but the GPU on a suspected bad PSU isn't smart.

What specific games are you playing, and at what specific settings and resolution? What CPU do you have?

If those are actual benchmarks from reputable places, one or more of your components may be limiting your performance. If you're going off by what others are saying, well people lie a lot about their performance -- I've heard people say they run BF3 smoothly at ultra settings with integrated laptops.
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December 19, 2013 11:12:26 AM

I dont think so m8

The rest of my system specs are pretty inconsequential at this point. I've updated bios of everything, drivers, every troubleshooting step possible. The only possible solutions are either A- Bad card or B- Bad PSU

BUT if it helps- 3570k CPU OC'd at 4.2
MSI- Z77a G-45 mobo
HDD
SSD
Corsair 650PSU

Thanks!
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a b U Graphics card
December 19, 2013 11:16:50 AM

What Corsair PSU do you have? They have many 650-Watt models, CX series, TX series, HX series, etc... You need to be more precise and give the exact model please.

You also forgot to mention how many monitors and what resolution you're using. Also, in what specific games are you getting poor FPS?

You say the only solution left are either a bad card or bad PSU, but I think you are ruling out too many things too soon. For instance, it could simply be a corrupted drivers or Windows problem that is slowing everything down. Did you try a full Windows reinstall (clean install)?

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December 19, 2013 11:16:51 AM

MC_K7 said:
You forgot to include your full system specs. The bottleneck could be somewhere else.

You didn't even say what PSU you got, 650W doesn't tell us much... You need to provide brand & model for each part for us to make sure there's no bottleneck or problem elsewhere.

Thanks.



Hey, Thanks. But its not a bottlenecking problem with any of my other components
The card Literally will NOT pull over 80-81% power under whatever load I put it under and it never gets over 60 degrees
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December 19, 2013 11:19:04 AM

MC_K7 said:
What Corsair PSU do you have? They have many 650-Watt models, CX series, TX series, HX series, etc... You need to be more precise and give the exact model please.

You also forgot to mention how many monitors and what resolution you're using. Also, in what specific games are you getting poor FPS?

You say the only solution left are either a bad card or bad PSU, but I think you are ruling out too many things too soon. For instance, it could simply be a corrupted drivers or Windows problem that is slowing everything down. Did you try a full Windows reinstall (clean install)?



Yes, I've done a clean install of windows. And poor performance across all games, even older ones. But, I think youre missing the point that the card will not draw more than 80% power,

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December 19, 2013 11:33:28 AM

Have you checked the Nvidia GPU Boost application? The settings overclock the card based on parameters you set namely power, temerature, noise level and one more setting (can't remember from the top of my head). maybe one of the default settings limiting your GPU?
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a b U Graphics card
December 19, 2013 11:37:31 AM

Then try with a different PSU if you're convinced this is the problem. Borrow one from a friend if you don't have a spare one laying around.

I don't know if you checked for a BIOS update in case it would be the problem?

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