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

Last response: in Components
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January 12, 2014 5:13:00 AM

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

More about : fan slows noisy

a b ) Power supply
January 12, 2014 5:41:24 AM

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.
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January 12, 2014 5:45:43 AM

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
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a b ) Power supply
January 12, 2014 6:02:59 AM

dbuk2000 said:
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?
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a b ) Power supply
January 12, 2014 6:23:44 AM

The CX series are made by CWT. I would advise a SeaSonic-made PSU like XFX etc..
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a b ) Power supply
January 12, 2014 6:48:35 AM

@ 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.
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a b ) Power supply
January 12, 2014 7:32:04 AM

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....)

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