I tried a Celeron ($2 + $6 shipping) when I ordered a refurb motherboard. Well, it was a slot1 300A and as dead as who knows what. It came with a cooler master HS/fan. So I can at least salvage the 50mm fan.
I took out the HS fan and saw multiple scratches on the print board cutting through the traces. It looks that someone tried to take off the HS/fan using a screw driver and made those scratches. I am going to use a conductive trace pen to see if I could restore it.
Anyway, from my experience, I would not recommend anyone to try them out.