Sandy Bridge CPU VRM Temperature

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  • caspian
    Badcaps Legend
    • Oct 2015
    • 1589
    • Laptop
    #1

    Sandy Bridge CPU VRM Temperature

    Dear Forum Members,

    I have got a MSI CX41 Laptop with the Intel B950 CPU.
    I noticed a high side Mosfet on the CPU-vcore circuit gets hot to about 70'C after 4 minutes of turning on. and the CPU gets hot about 60'C after 3 seconds of turning on without any load.
    CPU heatsink is installed on the CPU and on the Mosfets too. the fan works fine. the laptop works fine except these temperatures.
    Please share your experiences on Temperatures of Intel Bxxx series CPUs and its CPU-vcore circuit.
    are these Temperatures normal?

    Thanks
    Last edited by caspian; 02-27-2019, 12:12 PM.
    Tags: None
    • ktmmotocross
      Boardkiller
      • Feb 2014
      • 3577
      • slovakia
      #2
      Re: Sandy Bridge CPU VRM Temperature

      tdp is 35W on that processor so 70c is way high without load. is both side of heatpipe hot?

        Comment

        • caspian
          Badcaps Legend
          • Oct 2015
          • 1589
          • Laptop
          #3
          Re: Sandy Bridge CPU VRM Temperature

          yes, the heatpipes work fine.

            Comment

            • ktmmotocross
              Boardkiller
              • Feb 2014
              • 3577
              • slovakia
              #4
              Re: Sandy Bridge CPU VRM Temperature

              maybe u have bad vrm driver who puts higher voltage, or bad low side mosfet makes driver put more load on highside mosfet. something is really not normal

                Comment

                • mcplslg123
                  Badcaps Legend
                  • Jun 2015
                  • 7262
                  • india
                  #5
                  Re: Sandy Bridge CPU VRM Temperature

                  Its definitely abnormal and it will kill the cpu after a couple of days. Replace the vcore IC first and then low/high side fets.

                    Comment

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