PSU I bought smells almost like its burning

[Jonny34511]

I bought a new PSU for my computer back in May. Recently I noticed it's become louder, and now today I came into my room and almost smelled something burning. It smells more just like heat or something, it doesn't have a strong smell. Like I can only smell it if I'm up close to it. And the PSU is also releasing warm air. This is my PSU: http://www.newegg.com/Product/Product.aspx?Item=N82E16817171031&nm_mc=KNC-GoogleAdwords&cm_mmc=KNC-GoogleAdwords-_-pla-_-Power+Supplies-_-N82E16817171031&gclid=CLHPurvWnrkCFZRj7AodJ2EAlg

I opened up my computer and turned it on just to make sure the fan on it wasn't broken or anything, and it was fine. What should I do? Should I send it in to Cooler Master to get a replacement? My other PC specs are:
AMD A6-3650 Quad 2.6 GHz
AMD Radeon HD 7750
8 GB RAM

My 7750 is also low profile and requires only 400w, so I don't imagine there is a PSU wattage problem.

 

[c4capricorn]

u got a bad psu there. if under warranty, i would suggest to get a replacement before it burns or damages any of ur peripherals.