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cpu fan speed changes constantly

By beleebala
Oct 29, 2004
  1. Help. I have a gigabyte motherboard with AMD XP 1800. I found that my cpu fan speed is going up and down periodically. I goes from 300 to 1200 rpm in a 2 sec cycle. It is a fan problem or a motherboard problem??
     
  2. Liquidlen

    Liquidlen TechSpot Paladin Posts: 1,094

    Unless you have a fan controller on your system it may be a failing fan,irregular power supply which comes off of the MB usually.
    Try a new fan .. go from there.
     
  3. Didou

    Didou Bowtie extraordinair! Posts: 4,274

    Your motherboard could also have a fan control technology such as Asus' Q-Fan which lowers the fan's speed when the CPU is running cool & speeds it up when the CPU starts to get hot.
     
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