ok i just recently had to replace my motherboard and got a Biostar P4M90-M7A Ver:1.0. For some reason after my computer is running a while it starts to get a loud humming sound. i think it might be the fan. anyways to fix it?

is this the fan on the CPU? check to make sure there is no dust build up, the build up might be on the side and the rotating blase are touching the buildup. also if it is a ball bearing fan check to see if it warp, you might want to consider changing it.

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