[ltp] Re: T41 high-pitched noise

[edonia]

Am Mon, 10 May 2004 10:00:26 +0200 schrieb Frederik Wagner:

> On Fri, 07 May 2004 21:11:50 +0200
> siobhans <Siobhan.Johansson.9240@student.uu.se> wrote:
> 
>> Hello!
>> I have a similar problem, but with a thinkpad T22. This high pitched
>> noise occurs when:
>> a) the ac is plugged in
>> b) when the thinkpad has been turned off, after running XP
>> 
>> 
> 
> I was playing around a bit more and found out that the noise volume
> reduces, when I throttle the cpu or set down the frequency, but it never
> really disappears when connected to ac. Only when I let the lapton run
> under full cpu load it's not audible (not because of the fan starting to
> turn ;-)... The point is that I really can't explain why there is no noise
> under XP in any case...
> 
> Bye,
> 	Frederik!

In my opinion, this ist the eth0 GBit lan card. on my t 21 it was the
combo card.
There may be some issues with some mini pci cards and acpi. that would
explain, why the internal wireless card do not work with teh processor
module while acpi is running...just guess!

edonia