You now can call it as Sudden Overclocked Northwood Death Syndrome, but you should understand that from this point you will start to hear about such effects more and more often. When Intel and AMD start to utilise the 90 nanometer process in 2003 and 2004 respectively, a big challenge for them will be the electromigration effect because it is exponential and depends on manufacturing process, voltage, heat, the quality of material and some other factors. All the mentioned factors influence the core-speed and the latter influence the performance. So, it all form the cycle and CPU developers have to find a consensus between the speed and reliability. In fact, it seems to be found for the current Northwood processors, but when you go above the recommendations, it may cause your CPU to burn down.
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