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I have a problem with my PC on win7 64bit. My specs: i7 3770k with a MB asus PZ77 V LE and a custom fan cooler master Hyper 212

I know that this is a recurring problem, but so far i was not able to spot the right solution

  • everything works correctly, correct temperatures, etc
  • when I shut down the computer, win7 closes but the cooler master fan keeps running forever and I am forced to long-press the power button to shut it off.
  • i tried to look into the bios settings but i did not find anything...
  • EDIT: i booted in safe mode and the PC does NOT shut off correcly: it freezes on the closing animation window and I need to long press the power button to shut it down
  • EDIT: the disk where win7 is installed is a kingston ssd. i also have Intel Rapid Storage Technology that just crashes when I try to load it..

Do you have an idea? Many, many thanks in advance!

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  • Which fan (I'm guessing your cooler)? Where is it plugged in?
    – Journeyman Geek ♦
    Commented Jul 28, 2013 at 10:02
  • yes the Cooler Master fan on the CPU
    – ℕʘʘḆḽḘ
    Commented Jul 28, 2013 at 10:03
  • Which fan port is it plugged into? Its still odd, but might help narrow things down
    – Journeyman Geek ♦
    Commented Jul 28, 2013 at 10:15
  • thank you for your help. how can i find the port?
    – ℕʘʘḆḽḘ
    Commented Jul 28, 2013 at 10:17
  • Well, see where its plugged in, and read the teensy silkscreened print. It should be plugged into CPU fan, not CPU Alt, where where along the top/middle of your board
    – Journeyman Geek ♦
    Commented Jul 28, 2013 at 10:19

1 Answer 1

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This can be hardware and software issue either. It is really hard to debug what is wrong, some of the possible reasons: PSU failure, BIOS error, motherboard or graphics card driver bug, etc...

By me this was cause by windows update, because it automatically updated the graphics card driver to a newer unstable version. Once a week I had small screen distortions, that's how I knew where to look for the problem... I updated the driver to an even newer version manually, restarted the computer and the problem was solved...

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