On Thu, 4 May 2006, Andy Green wrote: > I guess there is trouble with the kernel module (which is actually part of > the monolithic kernel for Fedora anyway) that does cpuspeed for your brand of > CPU. powernow-k7 is a built-in module in CentOS-4. I had the same problem on my laptop, it ran at ~800MHz rather than 1666MHz (the normal frequency for this XP-M 2000+). Kernel messages indicated that it is a problem that is fairly common: --- powernow: PowerNOW! Technology present. Can scale: frequency and voltage. powernow: No PST tables match this cpuid (0x781) powernow: This is indicative of a broken BIOS. powernow: Trying ACPI perflib powernow: ACPI perflib can not be used in this platform powernow: ACPI and legacy methods failed powernow: See http://www.codemonkey.org.uk/projects/cpufreq/powernow-k7.shtml --- The strange thing is that on this laptop powernow-k7 also succeeds every now and then: --- powernow: PowerNOW! Technology present. Can scale: frequency and voltage. powernow: SGTC: 13333 powernow: Minimum speed 799 MHz. Maximum speed 1666 MHz. --- I haven't decided yet whether I will ditch this driver or not. But it is not really urgent when I don't need Eclipse for the day :). -- Daniel