<div>On 8/3/06, Tobias Bocanegra <<a href="mailto:tobias.bocanegra@day.com">tobias.bocanegra@day.com</a>> wrote:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> hi, i have a intel dual core t2700 with 2.16ghz. vendor_id : GenuineIntel cpu family : 6 model : 14 model name : Genuine Intel(R) CPU T2600 @ 2.16GHz stepping : 8 the files in /sys/devices/system/cpu/cpu0/cpufreq say: affected_cpus:0 cpuinfo_cur_freq:1667000 cpuinfo_max_freq:2167000 cpuinfo_min_freq:1000000 scaling_available_frequencies:2167000 1667000 1333000 1000000 scaling_available_governors:userspace performance scaling_cur_freq:1667000 scaling_driver:centrino scaling_governor:userspace scaling_max_freq:1667000 scaling_min_freq:1667000 scaling_setspeed:1667000 now, i try to set 2.17 ghz, but it always stays at 1.7: echo 2167000 > scaling_setspeed # cat cpuinfo_cur_freq 1667000 i tried every possible combination, and also other cpu frequency tools like cpufreqd and cpufreq-set funny enough, it worked suddenly once 2 days ago...but i can't figure out what was different. i guess, it's either some chipset-internal regulation, or some cpu daemon running. <a href="http://lkml.org/lkml/2006/2/3/219">http://lkml.org/lkml/2006/2/3/219</a> has anyone some advice? regards, toby -- fedora-list mailing list <a href="mailto:fedora-list@redhat.com">fedora-list@redhat.com </a> To unsubscribe: <a href="https://www.redhat.com/mailman/listinfo/fedora-list">https://www.redhat.com/mailman/listinfo/fedora-list</a> </blockquote></div> Hi Toby! A couple of things occure to me: 1. CMOS - I believe must be set to allow other software to change the frequency. 2. Any choices of CPU frequeny must "scale" with the Front Side Bus frequencies chosen. I believe this would be in your Motherboard Documentation and would involve your choice of memory and capabilities of your PCI cards etc... 3. I would guess (this is a guess) that the "userspace performance" written as the scaling_available_governers with the "scaling_governor:userspace" as mentioned above may have a lot to do with the frequencies below it and the ability to set a high speed. I am not sure how CMOS and the controlling variables talk. I do believe that a log Google session starting with the first "scaling" line above would lead you to an answer. Hopefully those more experianced and knowledgeable will respond before Google dies of overuse. Good Hunting! Tod scaling_available_governors:userspace performance scaling_cur_freq:1667000 scaling_driver:centrino scaling_governor:userspace