Heatsink fan pulsing

[seemimi]

I got my laptop in Nov 2017 and the fan has always been a little noisy.  Recently, it started making loud pulsing noise, so I opened it up and found the fan pulsing as soon as I turned the laptop on (https://www.youtube.com/watch?v=t_cOQXW9OBU).  I briefly searched the part online and only found it at HP for $77 which is not cheap.  Any suggestions to repair the fan or for substitiute parts are appreciated! Thank you.

The part number is 936276-001

[Riddle_Decipher]

@seemimi I appreciate the video and here's what I suggest to resolve the issue:

• Updating your Notebook computer BIOS
• Keeping notebook air vents clear and clean
• Increasing the efficiency of the notebook to reduce heat
• Using Windows Task Manager to identify corrupt processes
• Selecting power save settings to shut off your computer when it is not in use

CLICK HERE FOR MORE STEPS AND INSTRUCTIONS.

Also, you may replace the part using the HP Parts Surfer: Click here for the link,

The universal part number listed for your device can be purchased from HP or at any local store as well.

Keep me posted,

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Good Luck.