High pitch whining noise from mobo?

Did my first test boot :). Everything went well, except for a high pitch whining noise when it's turned on. The sound is coming from the CPU area. What could this be? I've read about this and people say it's not a faulty mobo and some people say it is. Will this go away after I actually use it (just did a test boot without any drives) What should I do to fix this?
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More about high pitch whining noise mobo
  1. My guess is that it's the CPU fan running at full speed, until the BIOS takes control.
  2. alexoiu said:
    My guess is that it's the CPU fan running at full speed, until the BIOS takes control.

    My CPU fan isn't connected
  3. So you've just started the board without any component installed?
  4. alexoiu said:
    So you've just started the board without any component installed?

    Only thing connected to my board was my ram and my optical drive.
  5. No idea. I would wait for the CPU, install it and see if still the same.
  6. Its somewhat rare for mobo's to experience coil whine but it can happen.
    Does the mobo sound like this? Skip to 1:40.
    http://www.youtube.com/watch?v=c9akNRmlcNE
    or This? Skip to 1:45, though the whole video is worth watching.
    http://www.youtube.com/watch?v=HP73edpQwgc
  7. alexoiu said:
    No idea. I would wait for the CPU, install it and see if still the same.

    I think I may have mislead you. When I said the only thing connected was ram and optical drive, I thought you knew the CPU was already installed So, my CPU is installed.
  8. manofchalk said:
    Its somewhat rare for mobo's to experience coil whine but it can happen.
    Does the mobo sound like this? Skip to 1:40.
    http://www.youtube.com/watch?v=c9akNRmlcNE
    or This? Skip to 1:45, though the whole video is worth watching.
    http://www.youtube.com/watch?v=HP73edpQwgc

    No, mine sounds like a dog whistle. It's like that high pitched. It's to the point that it seems like I shouldn't be able to pick up the sound with my ears.
  9. army1506 said:
    I think I may have mislead you. When I said the only thing connected was ram and optical drive, I thought you knew the CPU was already installed So, my CPU is installed.


    And you started the board with the CPU installed, and no CPU fan? Not a good idea.
  10. alexoiu said:
    And you started the board with the CPU installed, and no CPU fan? Not a good idea.

    I really don't think it's a problem seeing it was only off for a test boot. (10secs). Plus I'm waiting for a h100 so I didn't see the sense in installing the stock CPU fan for a test boot then taking it off and installing the h100.
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