I had that problem with my old Athlon TBird. Changing config to make thermal a module and not loading it solved my problem. I don't know how to change the thermal limits from within the system using ACPI. On Wed, 2003-07-23 at 18:56, bill davidsen wrote: > In article <878yqpptez.fsf@deneb.enyo.de>, > Florian Weimer wrote: > | If I enable ACPI on my box (Athlon XP at 1.6 GHz, Epox EP-8KHa+ > | mainboard), it becomes very slow (so slow that it's unusable). > | > | Is this a known issue? Maybe the thermal limits are misconfigured, > | and the CPU clock is throttled unnecessarily (if something like this > | is supported at all). > > There have been reports before, check the archives. I seem to remember > that the solution involved changing some unobvious kernel feature, but > others have had similar problems.