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PSU blowing hot air into case - Page 2

post #11 of 39
If your psu looks like this http://www.newegg.com/Product/Product.aspx?Item=N82E16817151086
Then the fan intakes air and exhausts it out the back where the plug is. If anything you will be creating a little extra breeze near your gpu.
You should still cut a hole int he bottom of the case so the psu gets fed cool air.
thumb.gif

Ha Ha I'm too slow.
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post #12 of 39
It sounds to me you have a PSU design to be mounted in the bottom of a case, where there would be a vent/blow hole, and you have mounted at the top. Post some photos so we can see how it's mounted.
post #13 of 39
Thread Starter 
My case may not be a 900 as I originally thought.



So the PSU is at the bottom of my case facing upwards at my GPU. There is no opening at the bottom of my case.
I was thinking of cutting a hole at the bottom and raising my case a little.



That's a 10mm gap under my case. Is that enough or does it need more?
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post #14 of 39
Quote:
Originally Posted by SeD669 View Post

My case may not be a 900 as I originally thought.



So the PSU is at the bottom of my case facing upwards at my GPU. There is no opening at the bottom of my case.
I was thinking of cutting a hole at the bottom and raising my case a little.



That's a 10mm gap under my case. Is that enough or does it need more?

That's a 900 alright.
10mm was enough for me.
post #15 of 39
Thread Starter 
Quote:
That's a 900 alright.
10mm was enough for me.

Sweet so if I cut the case and flip the PSU I should have better airflow in the case?
I'm still going to raise the case a little just for fun smile.gif
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post #16 of 39
i dont understand, so your PSU blows air out of the fan????
the fan on your PSU should be taking air from your case and blowing it into your PSU and out the back vent, not the other way around.

eigther you have your facts mixed up, or your PSU has a major design flaw.
post #17 of 39
yeah you have it all wrong OP.

The hub of the fan is facing up, which more than likely means it is an intake at the top. You are not blowing hot air towards the GPU, you are blowing it out the other vents (usually the rear).
 
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post #18 of 39
ussualy the purpouse of cutting a hole in the bottom and flipping the PSU is not so that the air can escape out that hole, its so fresh air can come in for the psu while upside down. people ussualy flip their PSU so that the chords will be closer to the motherboard tray
post #19 of 39
Thread Starter 
I see thumb.gif
LOL how embarrassing I just assumed the PSU was blowing hot air into the case doh.gif
I put my hand in front of the fan and I wasn't completely sure if it was pulling air out or pushing it in. So there is no need to cut the case and flip the PSU really?
Thanks for the help guys much appreciated... now I don't have to stress about my VRM's as much smile.gif
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post #20 of 39
Quote:
Originally Posted by SeD669 View Post

I see thumb.gif
LOL how embarrassing I just assumed the PSU was blowing hot air into the case doh.gif
I put my hand in front of the fan and I wasn't completely sure if it was pulling air out or pushing it in. So there is no need to cut the case and flip the PSU really?
Thanks for the help guys much appreciated... now I don't have to stress about my VRM's as much smile.gif

correct, you will not need toflip and cut your case if you dont want to smile.gif
now, to clarify, doing so would help your inner case temps, but only a LITTLE bit

what would happen is the PSU would be taking fresh air from outside the case, meaning its not absorbing the heat that is already in the case. this will allow the PSU to cool more efficiantly.
The walls of the PSU do radiate some heat (especialy in low airflow environments) so the cooler the inside of the psu, the cooler the walls will be.
With the flipped psu method, the walls will be alot closer to room tempurature, having little effect on the air on the inside of the case.

But once again, ill state that there is not going to be much benifit for you in doing this.
The only time i suggest that YOU yourself do it, is if you want your PSU cables closer to the mobo tray (for cable management)
This is why i did it in my case (however i made a small mod so that the psu is higher and did not need a hole cut in the case)





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