Oh, sorry, I never explained myself, I'm not mining SHA256, I'm mining Scrypt altcoins!

Gotcha. That makes far more sense. Your Uncle is a very nice guy if he's letting you peg all those CPUs to 100% all the time. You should tell him to pick up a couple of those Scrypt blade miners and hook them into a single machine in his data center. You'd get greater hash rate, and he'd not have to worry about you burning out his machines.