Noisy computer

[DOUBLE A]

Think it is the fan on the computer that is being really noisy, but it get so loud it sounds as though its about to blow up
( well not exactly but you get the picture )
Have done, Virus, spyware scans etc and they come back ok, have also cleaned hard disk and defragmented.
It sits on the computer table and the back is not obstruted at all.

Any ideas techies ?

[Malky]

Most probably a fan. They can gum up with dust etc which sticks to the blades and causes imbalance. And sometimes they need a bit of lubrication but TBH if that's the case are better replaced. Remove the lid and start the computer and listen to pinpoint the place where the noise is coming from.

If it is a fan, turn off the computer, switch it off at the wall but don't unplug the electric lead. You need to leave the lead connected so that you can discharge any static in your body to earth through it. Touch any bare metal on the computer case and you are ready to start. Don't touch anything inside the computer that you don't need to by the way

Clean the fan(s) blades with a cotton bud soaked in water (but not dripping water). It might be best to remove them to do this but if you do, take a note of which way they face. There are fans on the cpu, power supply, graphics card, case and maybe more depending on the system you have.

If it's definitely not a fan, then it could be a failing hard drive.

Malky

[DOUBLE A]

Thanks for the reply Malky, sounds quite complicated but will give it a look.

[maxmix]

99% CPU Fan or PSU Fan

maxmix

[prof bunhead]

It's well worth taking the back off the computer and giving it a good hoovering out from time to time.

What happens is that dust builds up inside the PC and whilst isn't necessarily blocking the vents it does retain heat, a bit like loft insulation.

This means the fan has to work harder to keep the computer cool and that can lead to wear on the spindle or simply more noise because it's spinning more.

[NelsonL1995]

It's well worth taking the back off the computer and giving it a good hoovering out from time to time.

What happens is that dust builds up inside the PC and whilst isn't necessarily blocking the vents it does retain heat, a bit like loft insulation.

This means the fan has to work harder to keep the computer cool and that can lead to wear on the spindle or simply more noise because it's spinning more.

Yeah I agree. Hoovering or giving it a good wipe with a cloth helps.