Computer fans making a zzz sound

[Oakley999]

My fans on my pc are making a electrical like sound, a zzz sound more like, no wires seem to be caught in the fans, and one of my fans make a stronger sound then the rest, you can only hear it close with your ear next to it, but is this normal? is doesnt sound healthy at all.

 

[Deleted member 362816]

Could be power supply noise try the fan in another computer see if same noise level. If the noise level is the same the fans might be dying.

 

[Oakley999]

I dont think its the power supply. when i hear the noise it sounds more centralized to it, as the front fan is way way away from the power supply, i've had this pc for nearly 2 years, but if they all sound like that it may be normal i guess.

 

[Deleted member 362816]

No I mean the power supply dieing giveing off to much noise into the power that goes into the fans. This could effect the fans with changes in voltage.

 

[Oakley999]

Oh right, what could affect my power supply in terms of dying? its 750 watt so it should have enough power..

 

[Deleted member 362816]

Power supply sometimes just get week and start to die, same as a car alternator.

 

[Oakley999]

I'll keep my eye on it, i dont really remember it just happening, i think its been happening for a long time, surely it would've died by now.

 

[Oakley999]

It may be vibration from either the fans or the HDD, i have a cooler master cm 690 ii case and its known to not be silent, i've still got a warranty on my pc for like, another 3 years, so i'll worry about it until it blows up, thanks anyway!

 

[Oakley999]

https://soundcloud.com/oakley999/fans notice the faint zzzz sound. Its alot louder when I listen to it compared to what my phone recorded, it just sounds like all of my fans are hitting something.

Anyone got any thoughts on this?