Buzzing noise from motherboard

tony71421 · 28 Feb 2011 at 18:00

Hi Guys,

I'm running a Asus M4A88T-M Motherboard and have noticed a rather annoying buzzing noise that appears to be coming from the rear usb ports. I have a wireless usb adapter that when plugged in the noise stops, as soon as I remove the adapter the noise starts again. I have upgraded the wireless adapter to a pci-e adapter which was the point I noticed this annoying (and loud) noise.

I have updated the bios which has made no difference.

Any ideas?

Cheers

T

scubes · 28 Feb 2011 at 18:24

is the motherboard grounded properly ? silly question i no...

tony71421 · 28 Feb 2011 at 20:01

Yes, just tried that, all seems ok on that front. The strange thing is, the only usb adapter that stops it is the usb wireless network adapter, any other usb device has no effect.

What is the wireless network adapter doing that no other usb device can do?

The only work around I've got is to leave the usb network adapter plugged in but. I have to leave it enabled tho, I've tried disabling it and the buzzing starts straight away until I re-enable it.

Code13 · 1 Mar 2011 at 00:34

tony71421 said:
Yes, just tried that, all seems ok on that front. The strange thing is, the only usb adapter that stops it is the usb wireless network adapter, any other usb device has no effect.

And I was going to say it was a loose bit of plastic resonating. Odd...

tony71421 · 1 Mar 2011 at 08:41

Thanks for the responses guys, after further investigation it turns out it's the PSU.

Now which PSU to buy I wonder!?