Z68MA-D2H-B3 Electric noise

[bortao]

Hi all,

got a brand new Z68MA-D2H-B3 which is great but whenever there's cpu activity (scroll a page, open a program) i hear noise from my speakers.

the noise is low but i can hear it.

is there a way of stopping it?

i read other topics and disable C1/C3/C6 on bios which helped (before that the noise was constant, now only when there's cpu activity).

i tried to set voltage to constant but couldn't find this on bios.

thanks!

[Aussie Allan]

   It really could be several things, .... you'll just have to work through them.........here a good place to start with Ferrite clip -ons .....ebay have a vast range and cheap.......

  http://www.stevelarkins.freeuk.com/computer_interference.htm

  or you can have a look at some software toys that could help........with the download link

    http://www.techmind.org/audio/

  Aussie Allan

[Dark Mantis]

Hi

Are you using a USB keyboard and mouse ? If so try plugging them into another port preferably on the rear of the board. If that still doesn't help see if you can borrow a PS2 version and try that instead.

Next up is to check out your wiring inside the system box. Make sure that the speaker cables are not running next to other cables especially power ones.

[bortao]

thanks for the tips, but none of that helped

this seems like the same problem from http://forum.giga-byte.co.uk/index.php?topic=1426.0

[Dark Mantis]

No actually it was different. The problem there was  this noise which would change sometimes but was there most of the time. It was like a high pitched squeal. This was caused by the power phases and was cured by a BIOS update and sometimes a hardware fix as well. Also the noise wasn't coming from the speakers at all it was from the motherboard. Can you post a sample of it on youtube ?