CPU Fan speed issues all of a sudden?

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Mar 2, 2016
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I'm having an issue where I get a CPU Fan Speed Error and a CPU Over Temperature error after a restart. My computer has been working fine for over a year since I upgraded it. Then today after I shut it down and restarted, I get shown those errors. After going into the bios, I see that my CPU is at 89 degrees so I turned it off. I also see that my CPU Fan speed shows as N/A, not sure if this is normal as I have a AIO Cooler plugged into the CPU_FAN header. My friend suggests to turn off QFAN control, and to have my PC Fan speeds and temps set to ignore so I can boot into windows. I'm able to get into windows now but Im afraid the issue is still there. Is it possible that my cooler is broken all of a sudden after a restart? How would I check?
 
Solution
Well if CPU temps are at 89c at near idle in the BIOS, the cooler is not functioning. Make sure the pump is plugged in and getting power, if it is and you are still getting those temps your pump may have failed.