I think mine went into a computer that we donated to a school, or something. Around 2002 or 2003, my dad and I put together a bunch of working systems out of spare parts and donated them.
Mine was the PCI version of the card. Crazy looking on Ebay how much even the bare card goes for now, let alone when someone has the full boxed set.
I wiped my drive a few times before realizing dropbox didn't back my wallet up. I shrugged it off losing 30 bitcoins worth maybe at best 3 cents each at the time. Hindsight is 20/20 I suppose.