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Old 03-09-2011, 10:11 PM   #11
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Default Re: Hissing sounds

Could be cap squeal. My motherboard does it like a mofo when under full CPU load.

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Old 03-10-2011, 01:36 AM   #12
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Default Re: Hissing sounds

i have just turned on the system this morning and the hissing has stopped untill about 5 - 10 mins in when it slowly started to come back. i guessing as the components got hotter. this is what makes me think it may be the gpu fan. i havent stopped the gpu fan when testing i just lowered the speed. so if i remove the card it may stop. well i hope.


Just took the GPU out and ran the comp for about 5 - 10 mins and no hissing, as soon as i put the card back in it started to hiss again. i hope it would be the graphics card and not the brand new mobo

This isnt a problem as im looking to soon upgrade to the GTX460

also I stopped the fan with my finger and the hissing was still apparent so I assume that it is one more of those caps. Thanks for all the posts guys

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Old 03-10-2011, 03:56 PM   #13
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Default Re: Hissing sounds

Yup yup, sounds quite familiar. It's probably just the capacitors on it squealing. I wouldn't really worry about it if I were you.
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Old 03-11-2011, 01:55 PM   #14
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Default Re: Hissing sounds

Fan Bearings Probably Try to get a new fan for it. is it the processor Cooling fan or Powersupply can you tell? I Always add an extra fan to all of my computers.

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