https://bugzilla.fedora.us/show_bug.cgi?id=520 If you are running Arjan's 2.6.0-testX kernel RPMS on Athlon laptops, please try the powernowd package. powernowd detects current system load and reduces the voltage and multiplier of the processor dynamically with usage. When CPU usage is higher, it instantly jumps the processor back to 100% performance. powernowd makes a 4-8 degree C difference with my 1GHz Athlon laptop, and it should work great with most other Athlon laptops along with the 2.6 kernel. Requirements: Fedora Core 1 or Red Hat 9 kernel-2.6.0-testX Mobile Athlon modprobe powernow_k7 modprobe cpufreq_userspace Please comment in the Bugzilla report above if you have success or failure. (Since powernowd uses the cpufreq interface, does it also work with Intel SpeedStep? I dunno. Please try it and report back.) Warren Togami warren@xxxxxxxxxx