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Are power supplies supposed to run very hot?

post #1 of 10
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This probably sounds like a dumb question but are power supplies supposed to run very hot during gaming/video editing? I have a Corsair HX650 running an i5-2500k and 2 GTX 580 in SLI. I've never bothered to check nor touch a PSU before so I am really surprised to see how hot this is running. It is still tolerable but a few degrees more and I could probably fry an egg on top of this.
Yep, Aeris died
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post #2 of 10
It should not run more than like 50C, maybe a broken fan?

You can always check on the hompage of the PSU which max temp should be
    
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post #3 of 10
they get hotter as more load is put on them thats why usualy you can hear some fans speed up in them.
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post #4 of 10
Not normally no, but SLI 580 on an HX650 sounds like it would be pushing it a bit ( PSU Guru's correct me if I'm wrong ) so I don't doubt it would get that hot.
post #5 of 10
Quote:
Originally Posted by Shrak View Post

Not normally no, but SLI 580 on an HX650 sounds like it would be pushing it a bit ( PSU Guru's correct me if I'm wrong ) so I don't doubt it would get that hot.

Power draw form the wall for a system like that would be 550 watts give or take 25 watts either way
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post #6 of 10
Quote:
Originally Posted by Shrak View Post

Not normally no, but SLI 580 on an HX650 sounds like it would be pushing it a bit ( PSU Guru's correct me if I'm wrong ) so I don't doubt it would get that hot.

I would say yea a 650W psu is going to be sort of close with gtx 580 sli but as long as the psu is of decent quality (which in this case it is) it shouldn't be a problem.

At the OP: Your psu is going to run warmer under higher loads like gaming. I would say everything seems normal.

What are you using to check the temps? Because if you can touch your psu then it is most likely not over it's temperature limit.
Edited by icehotshot - 6/10/13 at 12:20pm
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post #7 of 10
With the two 580's you're running at pretty much max output for the PSU...the 650 watts is the peak output and not sustained.

The good news is that means it is probably running as efficiently as possible. The bad news is that it might be running warm. It shouldn't be too how to touch though. You may want to prop another fan in there blowing on it.

This is assuming that it is getting warm when you are under a load on the GPUs...if it is hot at idle then there is something wrong. Something very wrong if the PSU built in fan is working normally.
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post #8 of 10
Quote:
Originally Posted by Vagrant Storm View Post

With the two 580's you're running at pretty much max output for the PSU...the 650 watts is the peak output and not sustained.

The good news is that means it is probably running as efficiently as possible. The bad news is that it might be running warm. It shouldn't be too how to touch though. You may want to prop another fan in there blowing on it.

This is assuming that it is getting warm when you are under a load on the GPUs...if it is hot at idle then there is something wrong. Something very wrong if the PSU built in fan is working normally.

review i saw on the psu said it hit 50c so might be normal when the psu is fully loaded down 50c is 122f so it will feel hot to the touch and the air will be hot his case and airflow can make the psu run hotter also.
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post #9 of 10
Thread Starter 
Quote:
Originally Posted by icehotshot View Post

At the OP: Your psu is going to run warmer under higher loads like gaming. I would say everything seems normal.

What are you using to check the temps? Because if you can touch your psu then it is most likely not over it's temperature limit.

Just my hand, I've never bothered to check PSU temps before and I just noticed it by accident. And yeah it only gets warm when I am playing games or doing something video extensive.
Quote:
Originally Posted by Vagrant Storm View Post

With the two 580's you're running at pretty much max output for the PSU...the 650 watts is the peak output and not sustained.

The good news is that means it is probably running as efficiently as possible. The bad news is that it might be running warm. It shouldn't be too how to touch though. You may want to prop another fan in there blowing on it.

This is assuming that it is getting warm when you are under a load on the GPUs...if it is hot at idle then there is something wrong. Something very wrong if the PSU built in fan is working normally.
Quote:
Originally Posted by Bal3Wolf View Post

review i saw on the psu said it hit 50c so might be normal when the psu is fully loaded down 50c is 122f so it will feel hot to the touch and the air will be hot his case and airflow can make the psu run hotter also.

Yeah the air coming out of it is very warm. I have my a/c on and the air at the corner is still warm compared to the rest of the room lol.

Thanks for all the input everyone. The heat caught me by surprise and got me a bit concerned biggrin.gif I will probably upgrade my PSU sometime soon, in case I go tri SLI.
Edited by Nethermir - 6/10/13 at 2:10pm
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Yep, Aeris died
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post #10 of 10
Old HX650? I mean, at a typical load, say 15% (depending on power supply efficiency with the load) of the power the computer is using is lost in the power supply during the conversion process... as heat. Yes, it heats up.

Some power supplies even use the casing itself as a heatsink for some of the active silicon. That said, I don't know if the HX650 is laid out that way.
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