When a CPU is running with performance exceeding its spec, it is said to be "overclocked". I'm looking for a word with a similar meaning that could be applied to general electrical appliances or power tools. The word overclocked sounds clumsy when applied to a hair drier or a toaster.
The word overpowered sounds right from the physical point of view, but that means "too powerful" by design (thanks @AricFowler) or "defeated" by something more powerful, rather than "running over the spec".
Then there's the word overdriven and overdrive. Can it be applied to things like a toaster? Or does it only work with appliances which have an actual drive?