fan config help?

[aggelos123]

hello.so i have 2 fans.one front intake that its small..its 80mm and i have connected it via molex to my psu.and it runs on full.but i dont think that its enought..also i have a 120mm exhaust fan in the back as usuall.i have this case:
http://www.newegg.com/Product/Product.aspx?Item=N82E16811553011
and i have as a cpu cooler the 212 evo if that helps..
and the thing that i worry about is the psu that it gets hot cuz now its summer and i live in greece which is a very hot country at summers.
so would it be better to make the exhaust fan as an intake fan ? and to have 0 exhaust ? or it would be worse?
i am thinking of putting the 80mm fan in the back as an exhast and put the 120mm in the front as an intake..could u please help me ?

 

[volcanoscout]

Without adding fans, I would put the 80mm in the rear as exhaust and the 120mm in the side as intake (if it's a filtered grill). I would recommend adding in a 120mm intake in the front. Ideally, ditch the 80mm, put a 120mm in the front, two in the side and another 120mm in the rear as exhaust.