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Ask HN: Why don't transistors in microchips fail?

Considering that a Quad-core + GPU Core i7 Haswell has 1.4e9 transistors inside, even given a really small probability of one of them failing, wouldn't this be catastrophic?

Wouldn't a single transistor failing mean the whole chip stops working? Or are there protections built-in so only performance is lost over time?

194 points franciscop 11 years ago 111 comments

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