Powersupply

I bought this http://www.newegg.com/Product/Product.asp?Item=N82E16817148008 power supply.

 I have a quick question concerning it's fan placement pointing at the roof of my case. When installed preoperly one of it's fans is about 1/2 an inch from the roof, so I can't imagine it being useful as an sort of exaust or intake? Is it working-as-intended and I shouldn't be worried?

Right now my powersupply is installed upside down so that both it's internal fans can push/take air from the case.

As long as the air is moving, it should be fine.

It's sucking air, isn't it? Heat naturally rises to the top, so that would be a problem if you're trying to *cool* a power supply with a fan pointing upwards. If you've already got one supply upside-down, you should probably do the same with this one. If you cut some ventillation into the top, that could remedy it, but then that turns your tower into a cheap heat duct.

Good for the wintertime! I think you know what to do here.