Solve : weird noise...?

1.	Solve : weird noise...?
Answer» MM... well, yesterday i heard some weird noise coming from my computer, like something vibrating or something... i think it was from the power supply but im not sure... ANYWAY, i turned it off and after a few hours turned it back on, and after a few seconds it started trrrr-ing again... so i turned it off again and waited another few hours, but this time when i turned it back on i waited a few minutes at startup before i put in the bios password, and it didnt make that noise anymore... it now works fine but i just wanted to know what that noise was, and what should i do if this happens again...?Probably a failing or misaligned fan. You're going to have to OPEN your case and see if any of the fans are acting up.Have you EVER done a complete INTERNAL cleaning?Like raptor says"It's probably a fan, or a fan.You,ll need compressed air. http://www.librarysupportstaff.com/4compcare.html#clean ok, ill try that... thanks...As always whenever opening the case up make sure to take electro-static precautions...ground yourself properly before touching anything and remove all power to the machine. Do not use a vacuum in there. patio. 8-)

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