https://community.intel.com/t5/Software-Tuning-Performance/BIOS-parameters-on-HP-SNB-for-pcm-power-x/m-p/784433#M441 It will vary depending on the platform type (desktop vs. mobile vs. server). The BIOS documentation should be references for the details, however in general, the core and uncore PMU and power related MSRs should be accessible. You should verify that your platform'sBIOSdoes (or does not) use the PMU as this may result in general conflicts with any PMU tool and not just pcm<BR /><BR />Hope this helps,<BR />Hussam Sun, 15 Jul 2012 05:30:02 GMT Hussam_Mousa__Intel_ 2012-07-15T05:30:02Z https://community.intel.com/t5/Software-Tuning-Performance/BIOS-parameters-on-HP-SNB-for-pcm-power-x/m-p/784432#M440 Hello,<BR /><BR />Can someone tell usthe BIOS parameters that need to be enabled on HP's Sandy Bridge machines to get stats<BR />from pcm-power.x ?<BR /><BR />thank you.<BR />-Rama Thu, 12 Jul 2012 22:49:00 GMT https://community.intel.com/t5/Software-Tuning-Performance/BIOS-parameters-on-HP-SNB-for-pcm-power-x/m-p/784432#M440 Ramakrishn_K_Intel 2012-07-12T22:49:00Z https://community.intel.com/t5/Software-Tuning-Performance/BIOS-parameters-on-HP-SNB-for-pcm-power-x/m-p/784433#M441 It will vary depending on the platform type (desktop vs. mobile vs. server). The BIOS documentation should be references for the details, however in general, the core and uncore PMU and power related MSRs should be accessible. You should verify that your platform'sBIOSdoes (or does not) use the PMU as this may result in general conflicts with any PMU tool and not just pcm<BR /><BR />Hope this helps,<BR />Hussam Sun, 15 Jul 2012 05:30:02 GMT https://community.intel.com/t5/Software-Tuning-Performance/BIOS-parameters-on-HP-SNB-for-pcm-power-x/m-p/784433#M441 Hussam_Mousa__Intel_ 2012-07-15T05:30:02Z