what kind of cooling are you using ??
Personally, I use a large dual-mode cooler that primarily uses convection at low loads, and kicks in a second-stage evaporative mode when necessary. It's about 33 years old, but it came stock with the system and still seems to be working pretty well. Gotta add more coolant several times a day, though
As for my computers, they use an Alpha PAL8045 (on my 2500+) and a stock 2500+ cooler (on my 1600+ Paly, soon to be switched to an SK-7). Oh, and my 1GHz Duron uses a GC-68.