how to fix FAN NOISE?

[dg45]

i have a 15in powerbook titanium and sometimes my fan makes wierd noises.
Sometimes it whistle, sometimes it makes a zinging/squeaking or ticking sound.

how can i fix this or what may be the problem?
also how many fans does it have?
what should i try doing?

 

[iLog.Genius]

I know with my Windows rig, this happens when either the fan on either the CPU/heatsink or the PSU is dying or is dirty. If you're up to it, you can try to take it apart and see how dirty (by the dust) it is.

 

[r.j.s]

Second ^^^ it's probably dust.

 

[brosmooth]

yea i would agree with ^that guy, if your up to it, take it apart and maybe all it needs is a good dusting. Or even if the fans are bad atleast its open and maybe you could try and replace them... goodluck

 

[dg45]

yea i would agree with ^that guy, if your up to it, take it apart and maybe all it needs is a good dusting. Or even if the fans are bad atleast its open and maybe you could try and replace them... goodluck

ok thanks to all that answer.

also now i just tryed taping the the case where i think the fan is located the the fan noise changes? why is that?

how fans the the powerbook TI have and also where are they located?
if i take the bottum case off will i see the fans and are they easy to get too?

 

[iLog.Genius]

If you need a guide, go to http://www.ifixit.com/Guide/Browse/PowerBook.