galaky324 :
http://www.newegg.com/Product/Product.aspx?Item=N82E16814127774&nm_mc=TEMC-RMA-Approvel&cm_mmc=TEMC-RMA-Approvel-_-Content-_-text-_-
There is the gpu i bought and my idle is setting at 52c
That's not a reference model, so it should be as good or bad at cooling as any other. But the fact that you are now idling at 52C tells me there is a problem. My 290X idles at mid 30s. I doubt it's a case fan issue, but I'd move the fan back to the front.
Next time you see it idling at 52C, remove the side panel of the case and see if the temp starts going down.