Can I install the HX620 upside down for better air flow through the unit?

[First Build]

I'm just beginning my first build and purchased the HX620 to compliment my Antec P180 case. The P180 houses the PSU in a separate chamber at the bottom of the case. The PSU is on a platform that is about 1" off the bottom of the case, but the platform is closed on three sides (only one side open to allow air to come in). I worry this will restrict the air flow through the PSU. My best option is to turn the PSU upside down where there is an inch of clearance on three sides. Any problem with operating the HX620 upside down?

[EliteKiller]

Any problem with operating the HX620 upside down?

No, but most of us with a P180/182 install it the conventional way with the fan facing the bottom.

 

http://img443.imageshack.us/img443/8504/hx620p182ci0.jpg

 

http://img182.imageshack.us/img182/4899/p182hxaw4.jpg