Suddenly reminded of an e-waste story: about 13 years ago I spotted a high end gaming PC at the tip. Less than two years old, pretty expensive component choices for the era.
Took home, powered up. The CPU fan immediately ran 100%, and it froze mid-boot. OK, we know why it was treated as e-waste...
Opened the case: Packed with thick dense lint and dust, especially in the CPU cooler fins. I can't imagine where it lived to ingest this much dust in only a couple of years, it looked like a clothes dryer filter in there.
Carefully vacuumed it out, and it immediately worked. Literally nothing else wrong with it.