Thanks all!
I never see anything like this where I live either 🤣
It is only the second time in my entire life I find something on the sidecurb that's actually better than the best I actually own at the time (the last time this happened, I found a 1GHz Coppermine s370 system while my then-fastest was a Katmai 550), this is a 1-in-10-year find.
I think I will do as suggested and part with the board. Not sure what to sell it for. I could really use the cash but I do intend to keep the PSU 😀.
And even though I kinda always keep some screwdrivers and bags with me at all times, this one I simply wanted on the other side of my front door ASAP, I turned my head and there it was (wth am I seeing?...), walked over there, saw it had nice stuff inside and didn't bother checking it in more detail, it was mine!
My god, and I was already carrying groceries, including a complete watermelon 🤣! Had to take a break like every 50 meters maybe 😵