Solved! Scratching/Grinding noise in laptop

Jan 12, 2021
Hi, I have an Acer Aspire A315-55G-5851 laptop with 256 GiB SSD and 1 TB HDD. I installed Fedora Linux yesterday night and I noticed that there's a grinding or scratching sound some where, I can't pinpoint it and don't have any idea what it is. Any thoughts on this? Thanks!
Suspect number one would be the fan.

To save opening the case, apply a vacuum cleaner hose as close as you get to the vents on the sides of the case. With luck it should free up whether was causing that sound.

I hope the hard drive isn't the cause.