On Wednesday 31 December 2008, 15:56, Nikos Chantziaras wrote: > It's coming from the case, not the speakers. > > > BTW, this happens in both gentoo and windows xp for me. > > Same here. The sound is loudest when running the "Mother Nature" test > of 3DMark 03. Happening with every card I ever tried (an old Radeon > 9800, an X1950XT and my current HD4870). Could be the graphics cards > then. But it would be interesting to know why this is happening.
Google for "coil whine" or "coil noise" and see if it applies to your case. I had one Abit motherboard replaced because the noise it did was really unbearable, although hearing it change pitch depending on what you were doing was kind of cool.
