Make and model of your laptop? SKU for your laptop would help us two fold. As for your laptop, might want to check and see if you're pending any BIOS updates. Is the laptop under a warranty scheme/period?
lenovo ideapad L340 15irh its 5 years old and I have repasted, its been making this noise for quite some time now. I was assuming coil whine as it occurs when opening games and graphic intensive apps.