Fan acting strange

[AlbinoTexan]

So whenever I started my pc up from it being shut off it would make this super loud noise. So I took off my side panel to see what it was. The sound came from my back fan. I thought it might be vibrating becase a screw was lose to I thightend it. It still made the noise ( it usually does for about 10 min then stops) so I just kept the panel off and then I the sound went away then came back but quitter it keep doing this over and over. And when I was looking at my fan as it was Doing that it would slow down to a stop then it would speed back up and make that noise.

 

the. Eventually it stopped making the noise and it was spinning at like full so idk what's up with it.

 

 

it doesr do this every time I start my pc but every time I start it it does make a Loud noise for 5-10 min.

[Hackentosher]

11 minutes ago, AlbinoTexan said:

So whenever I started my pc up from it being shut off it would make this super loud noise. So I took off my side panel to see what it was. The sound came from my back fan. I thought it might be vibrating becase a screw was lose to I thightend it. It still made the noise ( it usually does for about 10 min then stops) so I just kept the panel off and then I the sound went away then came back but quitter it keep doing this over and over. And when I was looking at my fan as it was Doing that it would slow down to a stop then it would speed back up and make that noise.

 

the. Eventually it stopped making the noise and it was spinning at like full so idk what's up with it.

 

 

it doesr do this every time I start my pc but every time I start it it does make a Loud noise for 5-10 min.

Sounds like a bearing issue to me. If it still spins and doesn't explode, keep using it unless you can't stand the noise. Or just replace it. Quiet, cheap fans are usually $10~

[TrifectaIII]

I've had this happen before. If tightening the screws didn't help, you could just replace it. Or, if have enough other case fans, just taking it out might not affect performance much.