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Amazon.com: PartsCollection Cooling Fan for HP Pavilion 500-023w / 570-p020 Desktop PC : Electronics
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How To Repair a HP Error Code System Fan 90B | HP System Fan 90B Error Fix# 90b #90bfanissue#hplaptop - YouTube
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System Fan (90B) The system has detected that a cooling fan is not operating correctly, HP, Compaq - YouTube
![HP Support on Twitter: "@NotSMops The overheating is causing the fan error & if the overheating issue isn't address it will keep happening." / Twitter HP Support on Twitter: "@NotSMops The overheating is causing the fan error & if the overheating issue isn't address it will keep happening." / Twitter](https://pbs.twimg.com/media/BdJcOFPIYAEnhNT.jpg)