Btw., you will have to excuse the questions
- what "problems" does a heatsink possibly have? Rust?
I don't know what happened, the previous owner didn't go into details, but personally I would never have done that. Even if there was rust, there are products that remove the rust, and chemical techniques that protect the metal from re-rusting.
If anything, the fan had problems, in which case, one replaces the fan. Removing the heatsink and mounting is like recycling the car because of a flat tire.
- what's wrong with the adaptation? Did it cool the thing with the previous owner?
The new adaptation is basically a cooler (and mounting base) from an AMD 939 or Am2, drilled in a handmade way to match the native holes. This board only accepts "screw system" as these holes line up with "screw holes" in the case itself.
The big problem is that this adaptation only holds one side of the cooler (the other is completely loose), in addition, the clamp that holds the cooler to the socket, touches a large inductor on the board, if by any chance the inductor loses its varnish, there will be a short circuit in the VRM area of the motherboard.
I don't have a tool for the correct measurement, I used a regular ruler, and the measurements are something like 65mm x 35mm
Edit: Additional info, I measured a socket A motherboard, and the dimensions are similar, but socket A is slightly more spaced (as specified in the Cuttoon post image) 66mm x 36mm