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afterdawn.com > forums > pc hardware > other pc hardware > noisy psu
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texaken
Newbie
_ 		15. August 2009 @ 05:19 _ Link to this message    Send private message to this user   
my corsair hx520psu is noisy(37 db at a metre)and shows the 12v rail as only 4.80 volts. Do you think it is faulty or is this normal?
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ddp
Moderator
_ 		15. August 2009 @ 14:48 _ Link to this message    Send private message to this user   
are you certain the 12v is only 4.8v as you need about 12v +/-10% for the drives & fans to run?
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sammorris
AfterDawn Addict

4 product reviews
_ 		17. August 2009 @ 14:41 _ Link to this message    Send private message to this user   
The 4.8V is a false reading, ignore it. How are you measuring the noise? Are you sure it's the PSU? HX520 units are very quiet (typically less than 20dB at 1m)
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Afterdawn Addict // Silent PC enthusiast // PC Build advisor // LANGamer Alias:Ratmanscoop
PC Specs page -- http://my.afterdawn.com/sammorris/blog_entry.cfm/11247
updated 10-Dec-13
texaken
Newbie
_ 		17. August 2009 @ 18:29 _ Link to this message    Send private message to this user   
I have a multimeter that measures the noise and use Everest which shows the 12v as only 4.8
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sammorris
AfterDawn Addict

4 product reviews
_ 		17. August 2009 @ 18:38 _ Link to this message    Send private message to this user   
Yeah, a standard multimeter is ridiculously inaccurate to measure noise.
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Afterdawn Addict // Silent PC enthusiast // PC Build advisor // LANGamer Alias:Ratmanscoop
PC Specs page -- http://my.afterdawn.com/sammorris/blog_entry.cfm/11247
updated 10-Dec-13
texaken
Newbie
_ 		17. August 2009 @ 19:04 _ Link to this message    Send private message to this user   
Thanks for all your replies. it could be the total noise of psu,rear extract fan,gpu fan and cpu fan.
Its an alphatek multimeter so should be good.
the volume is really annoying me as my sons pc is nearly silent,
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sammorris
AfterDawn Addict

4 product reviews
_ 		17. August 2009 @ 19:38 _ Link to this message    Send private message to this user   
Seriously, it is very unlikely to be the PSU that's noisy. Try stopping all the other fans in your PC to find the culprit.
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Afterdawn Addict // Silent PC enthusiast // PC Build advisor // LANGamer Alias:Ratmanscoop
PC Specs page -- http://my.afterdawn.com/sammorris/blog_entry.cfm/11247
updated 10-Dec-13
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