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On Wed, Dec 31, 2008 at 8:02 AM, Nikos Chantziaras <realnc@×××××.de> wrote: |
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> This is a question that is off topic of course, but I'm not sure *where* it |
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> would be on-topic. Considering that Gentoo users are also often so-called |
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> "enthusiasts", I'll drop the question here ;) |
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> |
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> In KDE (3), when enabling the "fade" effect for menus, clicking on a menu |
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> results in a faint, high-pitched tone coming from somewhere inside the PC |
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> case. The tone lasts for the duration of the fade effect (should about 0.2 |
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> seconds). This is happening on more than one machines. You have to listen |
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> carefully to make out the sound, but it's there. |
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> |
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> So the question is simple: where does the sound come from and why? |
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I have a Core 2 Duo E6600, with Abit In9-32X Max motherboard and I get |
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the loud hissing noise. It seems to basically happen during CPU load |
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that is not balanced between the two cores. In other words, if both |
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cores are idle or both cores are busy, there is no noise, but if only |
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one core is busy it makes a loud hissing sound. |
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I've heard a similar noise coming from the video card (I've assumed) |
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on an IBM laptop. Whenever there is heavy video I/O it makes a hissing |
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sound. |
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I can't remember the exact reasoning, but I do recall being told "it's |
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normal" and that it varies from one system to another, even with the |
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same hardware. I think it's related to capacitors or voltage regulator |
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or something like that. (I am not an electrical engineer) |
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When trying KDE4 with all the desktop effects, it was really annoying, |
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everything I did would cause the hissing noise, presumably because |
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it's using more CPU load to do basic things. |
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So, in other words, "it's normal". :) |
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Paul |
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