One of my projects this week is to go through the computers of my dad and deceased sister, looking for any personal data before I recycle them.
There are two desktop CPUs and two laptops, all well over five years old and therefore undoubtedly worthless. But I at least should try to boot them before discarding them.
And if I can get them to boot, I have a half dozen hard drives in a box too.
Wish me luck.