weird buzzing sound

[draconic36]

I turned on my computer this morning and it started making this weird buzzing sound coming from the front of the case, could this be a fan problem? i have a 120mm fan at the front (haf 912 case) and the weird thing is when i put my hand infront of the fan, or push against the case, the buzzing stops completely, any ideas on how to fix this?

 

[daes79]

I think it may be a loose screw on hte fan and when you press on it, it holds it in so it stops pressing . See if it needs to be tightened. Also tell what fan you are using.