Hi
I have a core i5 2400 processor and it gets quite hot where i live so i used speed control and now it runs at max. The sound doesn't bother me either. So is it bad for the stock fan to keep on running at max. My MB- INTEL DH67CL
Nope; it should be fine. Although, I would advise you to get a Cooler Master Hyper 212 EVO; http://www.newegg.com/Product/Product.aspx?Item=N82E16835103099