Fan slows down and becomes noisy after a while of using PC

[dbuk2000]

Hi

So I noticed after using PC for a couple of hours there was a noise coming from my PC. Having isolated this noise it is coming from the power supply where the fans starts doing a very rigid slow spinning. THe only way I can make noise go away is by restarting computer or by tilting the PC to its side and then putting it up right. Has anyone experience this?

Thanks

 

[ganon11000]

I have a older PSU which has a slightly noisy fan. I would advise getting a new PSU or, if you like to take dangerous risks, buying a new PSU fan.

 

[dbuk2000]

Hhhm well I built the PC literally a week ago, so I know its not an issue to do with age. Just strange how the noise only comes on after a few hours and how it dissapears when I tilt the PC to one side.

If I cant find an answer in the next hour I will return this and get a new power supply

 

[ganon11000]

Hhhm well I built the PC literally a week ago, so I know its not an issue to do with age. Just strange how the noise only comes on after a few hours and how it dissapears when I tilt the PC to one side.

If I cant find an answer in the next hour I will return this and get a new power supply

I would return it anyway if its new.
What brand is the PSU?

 

[dbuk2000]

Its Corsair Builder Series CX 500 Watt ATX/EPS 80 PLUS Bronze Power Supply Unit

http://www.amazon.co.uk/gp/product/B009RMP2VE/ref=oh_details_o06_s00_i00?ie=UTF8&psc=1

had got very positive reviews everywhere

 

[ganon11000]

The CX series are made by CWT. I would advise a SeaSonic-made PSU like XFX etc..

 

[lonewolf7]

@ OP, yes replace the PSU ASAP, and CX series is budget PSU's, so not the best one out there. Try XFX 550W PRO, Corsair HX or TX series, Seasonic, Antec.

 

[jb6684]

Sound like you got a unit with a defective fan. Specifically a bad bearing. Once it heats up it no longer spins freely due to expansion of the materials. Turing on side changes axis, which apparently helps the fan...

Simply RMA for a new unit..... (which CX500 is a basic unit I see no reason to replace it. I have 3 CX600M's all running perfectly....)