I have a socket LGA 775 CPU I want to remove from a motherboard that doesn't work anymore and use it again on a new motherboard.

I know I will have to reapply thermal paste, is there anything else I should look out for? How hard is it to remove the cooling fan? I remember it snapped into place pretty tight.   Reuse anything you can.  You just want to insure that the new motherboard supports the old CPU.  EVERY motherboard has a list of supported cpu's.Okay, thanks.Since both are LGA-775, you can't hurt anything by trying.  It might not POST.  Of course, you need to install the cooling fan and connect the power lead.I don't have a motherboard yet, just wanted to see if reusing the CPU was feasible before I even looked. I put together the motherboard/CPU so I'm comfortable doing that, but I have never taken one apart.      You can look up the details of the cpu here:  http://www.cpu-world.com/
Other than the socket type, bus speed, multiplier, etc is what DETERMINES if motherboard supports it.
Thanks, that is a very helpful link.Just a follow up if anyone is interested-

I ordered a cheap new socket 775 motherboard (ECS GT1T-M7) from Tiger DIRECT and replaced the (suspected) bad old board, reusing the old CPU and cooling fan and just reapplying new thermal paste. My suspicions were correct, the problem was the old motherboard. Everything is up and running fine now.