Rattling inside computer???

[EquaLiZr]

I cant pinpoint it. Ive unplugged each fan to see if that was the problem, and its not. (even NB and SB fans) No sounds from the power supply or video card. Hard drive only makes the regular noise when accessed. The only thing i can think of is something is vibrating somewhere hidden

Anyone else ever come across this before?

 

[EquaLiZr]

bump. Its driving me crazy. Im .............. this close to doing a tear down

 

[NameTaken45]

is it possible that when you set up your pc you may have dropped a screw into the bottom of the case?