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Windows 7: Speaker buzzing

01 Jun 2016   #21
winnseven7

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by ICIT2LOL View Post
Hmm sorry we couldn't get it fixed right away. It probably is something really quite simple but while I am thinking about it the buzzing is it around mains power supply frequency - usually around 50Hz? because a fault in the grounding system could possibly be another cause of the problem.
Just check that the motherboard is firmly grounded and the easiest way of doing that is to measure the resistance between the case, motherboard fixing screws, black leads on the 24 pin power plug and the third earth pin on the mains power lead. All you need is to unplug the power supply to get to the plugs' earth pin and use a (preferably) digital multimeter and set it to resistance and when you touch the mains earth pin and any of those connections I spoke of there should be a zero resistance. If there is resistance then something is quite wrong and could be the cause of the humming sound because a good ground connection usually stops any extraneous background mains hum from happening.
THIS^^

Look for a cold solder joint or loose connectors at ground connections with a magnifying glass


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01 Jun 2016   #22
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

Quote:
Look for a cold solder joint or loose connectors at ground connections with a magnifying glass
Yes mate I suggested that earlier but thanks for the input and Vernon mate yes you really will have to have a hard look at the inside of that machine - as I have now my Sandy Bridge is dying
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02 Jun 2016   #23
rayford52

windows 7 home premium 64 bit
 
 

thanks guys.. be safe.
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02 Jun 2016   #24
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

Hope everything goes well again soon mate and a by the by I resuscitated my Sandy Bridge
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 Speaker buzzing




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