New 27" buzz... Firmware fix?

[MR.Raul]

Just got my new iMac 27" and it's buzzing, especially on lower brightness.
So if I increase till it stops, it starts buzzing when I change websites, might have to do with what color it is.

So I'm wondering if this can be fixed with an Firmware?
Or should I just get a new iMac?

 

[celticpride678]

Apple did release a 21.5" firmware update for brightness issues yesterday, but I haven't heard any reports of buzzing fixes.

That being said, it still does sound like a firmware issue.

 

[wessew]

I have a new iMac 27" and it is not buzzing or exhibiting any other unusual noises. You need to call Apple Care, report this issue, and open a case. It does not sound normal.