noisy fan since cleaning inside pc

retsbed

Hiya,
I have a Dell Dimension desktop 5150. Recently the fan has been going crazy and is generally quite loud. Sometimes when i'm not even on the pc the fan speeds up for no reason and it sounds like the pc is about to take off lol.

About once a year i open the tower and give it a clean with an airduster (i have a couple of cats and their hair gets in everywhere lol) - i did this today and since reconnecting and starting the pc, the fan is even louder and is going non stop. I've had the pc on for about half an hour now and it's relentless and quite loud too, prob the loudest i've ever heard it.

Please help....any advice GREATLY appreciated
:beer:

geewhiz

Have you checked what temp your pc is running at, if it's ok and the fan is running correctly but just very noisy it may be time to replace your fan as it could be damaged and on it's way out ?

retsbed

geewhiz wrote: »

Have you checked what temp your pc is running at, if it's ok and the fan is running correctly but just very noisy it may be time to replace your fan as it could be damaged and on it's way out ?

thanks for your reply, where do i find out the temperature of my pc?

Basil1234

you can look in your bios when you boot up it will tell you what key to press to enter before windows start just don't make any changes and do not save when you exit

retsbed

ok thanks gonna check quick

DatabaseError

realtemp

linky

BillScarab

Check inside the case again and make sure there are no cables resting against any fans.

Fans are pretty cheap to replace though if it is on the way out.

macman

Sounds like you may have blasted the fan too hard with your compressed air and now it's running out of balance? Or some of the fluff is stuck to one side and causing vibration.
Which fan are you referring to-case, processor or PSU?

retsbed

i couldn't find the bios key during startup....any ideas?

i have since downloaded speedfan and it says the temp is 30degs...

thanks BillScarab i have checked again and everything seems fine...

pcombo

of course it will be loud dust clogs up and makes it quiet hence dusting and removing it will spin faster etc.

retsbed

macman wrote: »

Sounds like you may have blasted the fan too hard with your compressed air and now it's running out of balance? Or some of the fluff is stuck to one side and causing vibration.
Which fan are you referring to-case, processor or PSU?

well the thing is i can't get to the fan properly because the black casing it's in is difficult to dislodge and i don't wanna cause any serious damage. i've always just sprayed from the front and from the back and it seems to clear out the mess fine. i used the compressed air that you get in a can.

excuse my lack of techie jargon but i'm not sure what the name of the fan is. it's the larger fan situated just above the hd....