5 Replies Latest reply on Jul 22, 2013 12:05 PM by kevin_intel

    Core i7 4770 runs at 3 GHz instead of 3.4 GHz

    AdamMorrison

      Hi,

       

      I have a Core i7 4770 which I cannot get to run at 3.4 GHz.  Linux /proc/cpuinfo says:

       

      model name      : Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz

      cpu MHz         : 2993.038


      I think the 3 GHz comes from these BIOS settings: Host clock = 100 Hz and the CPU multiplier = 30.

      But the BIOS doesn't let me change them!  So how can I get the processor to run at the correct speed?


      Here are the hardware details (from dmidecode):


      BIOS Information

              Vendor: Intel Corp.

              Version: MCH8710H.86A.0047.2013.0606.1508

              Release Date: 06/06/2013

       

      Base Board Information

              Manufacturer: Intel Corporation

              Product Name: DH87MC

              Version: AAG74242-401

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