Building a new PC is always fun but there's a part of the build process for most which goes unspoken about: the replaced PC. I've had my old build sitting in a spare room for nearly two years now collecting dust.

It used to run two R9 290X's that I managed to sell during the bitcoin mining craze. For the rest of it, though, I don't know what to do with it. It seems simultaneously too valuable to just throw away yet too old to be worth anything. It also had power problems that I could never diagnose or fix so nobody would buy.

So question is: what do you do with your old PC or hardware, especially the parts that don't have a clear sell-on value through age or problems?