re: #197 prononymous
It isn’t exactly “for free” is it? You need to invest into some serious cooling, and run a risk of frying your setup if said cooling is inadequate or happens to glitch on you. It’s actually cheaper to cluster multiple weak nodes if you’re after raw processing power. The only reason I can see to overclock a single node is to play games on it, in which case you’re still better off investing in a bigger and badder hardware instead of overclocking.