MSI GP62MVR-7RF - weird fan / thermal issue

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  • gurj1979
    Senior Member
    • Dec 2014
    • 186
    • UK
    #1

    MSI GP62MVR-7RF - weird fan / thermal issue

    Hey guys, I need help with my personal MSI GP62MVR-7RF. Annoying fan / thermal issue.
    Machine Idle. Fan will spin medium speed for 4 seconds, then off for 1 second. Repeat forever.
    CPU and GPU are cold. No load, just sitting doing nothing.
    It's clean inside, nothing blocked. New MX4 paste.
    Updated BIOS, EC, and VBIOS but nothing's helped.
    Schematic shows 2 thermal resistors, but they're OK.
    All thermal signals are good, inc PCH.

    Has anyone ever come across this ? Any idea what to do ?
    Could it be a faulty CPU / PCH / KBC ? I REALLY don't want to replace them for guess work.
    Tags: None
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