FC5 2.6.17 runs hot with Athlon / athcool

Martin Ewing ewing at ewing.homedns.org
Mon Jul 10 12:22:32 UTC 2006


Klaasjan Brand wrote:
> On 7/10/06, *Martin Ewing* <ewing at ewing.homedns.org 
> <mailto:ewing at ewing.homedns.org>> wrote:
>
>     I am running 2.6.17-1.2145_FC5 on an Athlon XP2000+ using athcool.  On
>     previous kernels, my CPU temperature was about 39 C with athcool on or
>     50 C with athcool off.  That was really nice, allowing me to run a
>     slow
>     fan, etc.  I had no stability problems.
>
>     With the present kernel and athcool on, I get 46 C, rising to ~50
>     C with
>     athcool off.
>
>
> Maybe there's some process hogging the CPU so it runs hotter? Did you 
> try with athcool off?
>
> Klaasjan
Exact same setup, zero apparent load factor.  (As I said, Athcool off 
--> ~50 C with any kernel.)

I had a similar problem with older kernels after using a USB drive and 
then unmounting and disconnecting it.  Apparently (WAG), the USB driver 
keeps scanning the ports fast enough to prevent the Athlon from 
sleeping.  Maybe the 2.6.17 kernel does this all the time.

Martin




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