Re: System (motherboard/CPU?) emits high pitch noise when processor.kois loaded.

From: Justin Piszcz
Date: Wed Oct 14 2009 - 18:05:54 EST




On Wed, 14 Oct 2009, Andreas Mohr wrote:

And that's news exactly how? ;)
Systems and their switching regulators (and especially their backing
coils) have been making noise for more than half a decade now,
depending on which activities frequency is currently taking place
on the system.

OTOH this means that in your case, maybe some interval in the processor module
(or somewhere related) is ill-chosen (leading to significant, audible differences
between busy/idle state) and should be changed.

For example, with HZ settings 100 can cause quite a bit of noise on some
machines, whereas 1000 is better, IIRC. And that could be similar for some
processing in this module.

Andreas


Hi,

Ok, well I never had that happen before when loading that module-- although I never normally ran it except for testing purposes, so it was news
to me :)

CPU was i870 & mobo = DP55KG for reference and I use a HZ setting of 1000.

Justin.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/