[opensuse] How is it with Intel Core i7 Max Turbo Frequency?

Hi, one hopefully short technical question. I have Intel Core i7-3630QM Processor, http://ark.intel.com/products/71459 having 4 cores, 8 threads and running on clock speed 2.4 GHz. It should be automatically overclocked to 3.4 GHz in case of need, but I wonder how this works. Does it require any communication with kernel or even with user? All HW listing tools say it is 2.4 GHz processor, so I wonder how to make it 3.4 GHz one. ;-) $ cat /proc/cpuinfo (8 times output below): processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 58 model name : Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz stepping : 9 microcode : 0x17 cpu MHz : 1200.000 cache size : 6144 KB physical id : 0 siblings : 8 core id : 0 cpu cores : 4 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms bogomips : 4788.90 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: $ x86info x86info v1.29. Dave Jones 2001-2011 Feedback to . Found 8 identical CPUs Extended Family: 0 Extended Model: 3 Family: 6 Model: 58 Stepping: 9 Type: 0 (Original OEM) CPU Model (x86info's best guess): Unknown model. Processor name string (BIOS programmed): Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz Total processor threads: 8 This system has 1 quad-core processor with hyper-threading (2 threads per core) running at an estimated 2.40GHz $ hwinfo --cpu 01: None 00.0: 10103 CPU [Created at cpu.374] Unique ID: rdCR.j8NaKXDZtZ6 Hardware Class: cpu Arch: X86-64 Vendor: "GenuineIntel" Model: 6.58.9 "Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz" Features: fpu,vme,de,pse,tsc,msr,pae,mce,cx8,apic,sep,mtrr,pge,mca,cmov,pat,pse36, clflush,dts,acpi,mmx,fxsr,sse,sse2,ss,ht,tm,pbe,syscall,nx,rdtscp,lm, constant_tsc,arch_perfmon,pebs,bts,rep_good,nopl,xtopology,nonstop_tsc, aperfmperf,eagerfpu,pni,pclmulqdq,dtes64,monitor,ds_cpl,vmx,est,tm2,ssse3, cx16,xtpr,pdcm,pcid,sse4_1,sse4_2,x2apic,popcnt,tsc_deadline_timer,aes, xsave,avx,f16c,rdrand,lahf_lm,ida,arat,epb,xsaveopt,pln,pts,dtherm,tpr_shadow, vnmi,flexpriority,ept,vpid,fsgsbase,smep,erms Clock: 1200 MHz BogoMips: 4788.90 Cache: 6144 kb Units/Processor: 16 Config Status: cfg=no, avail=yes, need=no, active=unknown [...] Nowhere any note about 3.4 GHz frequency... Why? Have a nice day, Vojtěch -- Vojtěch Zeisek Komunita openSUSE GNU/Linuxu Community of the openSUSE GNU/Linux http://www.opensuse.org/ http://trapa.cz/