I once had a 3500+, and it worked perfectly. Until...
After a few months of using it, the cpu temperatures started to rise. And rise. And rise. And rise. When it used to idle at 40c, it would go past 60c and into 70-80c when I ran anything even remotely intensive. After a while, I decided to replace the fan, because that would be the only way to fix it. (all other options exhausted). Lo and behold, when I removed the fan, the fan was literally baked onto the cpu via the conductive gel. NOTHING would be able to get it off without annihilating my CPU. Unfortunately, a... er... slight accident happened with the motherboard when the cpu was removed, damaging the clamps that kept the cpu in the socket. My computer never booted again.
To this day, I use my Macintosh. It's a dual-cpu G4 mac. The heatsinks literally belong in servers. It sounds like a mother****ing leafblower. Leafblowers are totally useless machines, btw.