This fan good enough

I have a fan I was using on a Duron, and I was wondering if I could use it on an Athlon 1.4GHz?  My Duron was usally running at 115 F.  I don't plan to over-clock it, but I will use very demanding programs.

(I attached a picture of the fan.  It should be about the correct size if your monitor is at 1024x768...)