All triple core processors are quads with one core shut off. The core isn't necessarily faulty, it may work perfectly and have just been disabled because the manufacturer has more orders for tri-core chips than it has quads with a failed core.
There's no increase in failure rate with triple cores. A flaw in the chip that knocks out one core won't have any affect on the other three.
even if it is classed as faulty, most of the time it is just because the core don't meet a certain standard. i built a computer last year with a phenom dual core, got the board to activate the other two cores and it is still working fine. so he got a quad core for the price of a dual core.
Desktop machine now powered by windows 7 pro 64bit , laptop by ubuntu
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