Castle

Typically are there any performance gap between the a power supply being implemented as an exhaust or intake?
Generally is it a better concept for power supply mounted at the top of the case with a intake fan at the bottom of it and an exhaust fan on the rear side of it(which is where you connect to the powerpoint).
Interested in a power supply with a intake 12cm or 14cm fan and a 80cm exhaust power supply. Any clues of those?

Computer_Freak

tecnically the PSU will be better as an intake from the back and exhaust in the case, but the rest of your components will fry, cause you blowing hot air into the case.

The best is to have a PSU at the bottom. cause hot air rises and it takes "cooler" air.

Rather have a normal PSU, the PSU can handle that heat, but you dont want your mobo, GPU and CPU to start seent temp rises...

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Castle

I appreciate for your take on it. Another reason for seeing the power supply being mounted at the top would be easier for cable routing am I right? For some reasons I prefer the conventional ways having seen that the new standard is a total new method of distributing air around the case.
http://www.sunbeamtech.com/PRODUCTS/...O/nuuo-550.htm
I am interested in a power supply as seen on 80 mm exhaust fan and 120 mm intake fan diagram.
After browsing on newegg, there is no search result indicating such a product.
There was a sunbeam product which was a 80 mm and 80 mm intake and exhaust.
http://www.newegg.com/Product/Produc...82E16817182030
Anyone here can search for such a power supply with a 80mm exhuast and 12cm/14cm intake power supply fan?

Castle

Just found Enermax Galaxy has such an implementation of a 8cm exhaust and 12cm intake.
http://www.newegg.com/Product/Produc...82E16817194020
Are there any 450W with such a similarity?

Quick69GTO

It seems to me that the 80mm exhaust would hinder the flow of the 120mm.
That might be the reason why it's hard to find what your looking for.

cathay

Apparently there is one being seen there on newegg, the Sunbeam NUUO 550W Power Supply except for it been an obseleted product range.
There is however, the ENERMAX Noisetaker II 485W Power Supply which conforms to the input output fan placement design but there being seen with dual 80mm cooling fans instead of a 80mm, 120mm variable.

ceewi1

I can see the justification behind dual fans on a PSU the size of the Galaxy, but an efficient 450W really shouldn't need that much airflow to remain cool. Any particular reason you're after this fan combination? If you do end up getting one, make sure that you're not getting a low efficiency unit which uses the dual fans to compensate for the added heat generation...

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Castle

Some reviews shown that a power supply with a 80mm exhaust has proven much more cooling efficiency compared to those 120mm or 140mm intake. Especially when purchasing a casing where the power supply is mounted at the top thus following the conventional power mounting guideline.
What would you conclude about the enermax 485W power supply by cathay? Is it a solid and not a low efficiency unit?

diduknowthat

Yeah it's about 80% efficiency for most of the load range.

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Timo

I believe that they're about 80% (good ones are more like 85%) when there's roundabout a 50% load.

And if you have your PSU take air from inside the case and blow it out it will act as an exhaust case fan as well as a PSU cooling fan seeing the air it takes from inside the case must come from outside as well. And if your PSU is on the bottom of the case it might help the Videocard cooling a bit but I can't see it doing very much seeing it really doesn't suck up all that much air (most PSU's don't get all to hot).

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