From: "Renato S. Yamane" <yamane@diamondcut.com.br>
To: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: LKML <linux-kernel@vger.kernel.org>, jnelson@jamponi.net
Subject: Re: Thinkpad T61 - Fan running a lot of time
Date: Tue, 24 Mar 2009 22:01:52 -0300 [thread overview]
Message-ID: <49C98280.4020402@diamondcut.com.br> (raw)
In-Reply-To: <20090324232328.GA23356@khazad-dum.debian.net>
Henrique de Moraes Holschuh wrote:
> Renato S. Yamane wrote:
>> The fan speed is ~2600RPM (always under 3000RPM), and I think that is
>> not enough to cooling the processor, because is necessary 3min to
>> decrease 1°C in Core1 and only 40sec to increase 1°C.
>>
>> I think that is necessary a higher fan speed.
>
> Or a better thermal coupling between the fan assembly and the
> processor... this is a weak area on thinkpads.
>
> If your box is still under warranty, I suggest you to use
> thinkpad-acpi fan control to keep your fan at level 7 (fastest normal
> fan level). If that's not enough, call in for a motherboard
> replacement.
Updated BIOS to 7LETC5WW (2.25) and...
Fan speed is stabilished in ~3000RPM, temperature go to 42°C and fan
speed still power-on.
# cat /proc/acpi/ibm/fan
status: enabled
speed: 3028
level: auto
# echo level 7 > /proc/acpi/ibm/fan
bash: echo: write error: Invalid argument
How can I change fan level?
Regards,
Renato
next prev parent reply other threads:[~2009-03-25 1:02 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-24 20:44 Thinkpad T61 - Fan running a lot of time Renato S. Yamane
2009-03-24 23:23 ` Henrique de Moraes Holschuh
2009-03-25 1:01 ` Renato S. Yamane [this message]
2009-03-25 1:29 ` Henrique de Moraes Holschuh
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