Hello I have question How can I check if Turbo Boost is working with Xeon E5649 I have turbostats that shows: pk cr CPU %c0 GHz TSC %c1 %c3 %c6 %pc3 %pc6 56.12 2.67 2.53 43.88 0.00 0.00 0.00 0.00 0 0 0 17.79 2.67 2.53 82.21 0.00 0.00 0.00 0.00 0 0 12 17.81 2.67 2.53 82.19 0.00 0.00 0.00 0.00 0 1 2 13.04 2.67 2.53 86.96 0.00 0.00 0.00 0.00 0 1 14 12.73 2.67 2.53 87.27 0.00 0.00 0.00 0.00 0 2 4 13.70 2.67 2.53 86.30 0.00 0.00 0.00 0.00 0 2 16 13.39 2.67 2.53 86.61 0.00 0.00 0.00 0.00 0 8 6 98.81 2.67 2.53 1.19 0.00 0.00 0.00 0.00 0 8 18 98.74 2.67 2.53 1.26 0.00 0.00 0.00 0.00 0 9 8 98.60 2.67 2.53 1.40 0.00 0.00 0.00 0.00 0 9 20 97.47 2.67 2.53 2.53 0.00 0.00 0.00 0.00 0 10 10 98.62 2.67 2.53 1.38 0.00 0.00 0.00 0.00 0 10 22 97.19 2.67 2.53 2.81 0.00 0.00 0.00 0.00 1 0 1 13.11 2.67 2.53 86.89 0.00 0.00 0.00 0.00 1 0 13 13.11 2.67 2.53 86.89 0.00 0.00 0.00 0.00 1 1 3 15.34 2.67 2.53 84.66 0.00 0.00 0.00 0.00 1 1 15 15.09 2.67 2.53 84.91 0.00 0.00 0.00 0.00 1 2 5 13.32 2.67 2.53 86.68 0.00 0.00 0.00 0.00 1 2 17 12.77 2.67 2.53 87.23 0.00 0.00 0.00 0.00 1 8 7 98.67 2.67 2.53 1.33 0.00 0.00 0.00 0.00 1 8 19 98.67 2.67 2.53 1.33 0.00 0.00 0.00 0.00 1 9 9 98.35 2.67 2.53 1.65 0.00 0.00 0.00 0.00 1 9 21 96.92 2.67 2.53 3.08 0.00 0.00 0.00 0.00 1 10 11 98.10 2.67 2.53 1.90 0.00 0.00 0.00 0.00 1 10 23 95.56 2.67 2.53 4.44 0.00 0.00 0.00 0.00 So 2.67Ghz - but based on Intel spec max Turbo freq. for this cpu is 2.93Ghz http://ark.intel.com/products/52581/Intel-Xeon-Processor-E5649-%2812M-Cache-2_53-GHz-5_86-GTs-Intel-QPI%29 Is there any tool that can show me good turbo stats ? or turbostat is ok but i have something wrong with Bios settings ? C-STATES ? pm governor ? Thanks Pawel