Read the Micron datasheet for D9 DDR2 memory and you will see that it is only factory rated at 1.8 volts. When people are overclocking they usually start giving their memory voltages like 2.3 or 2.4 volts. In my experience, bad memory is usually the cause of most performance and stability degradation. It will be interesting to see some reports from XS users how the 45nm chips are holding up long term, like maybe a month or so at 4+ GHz.
Intel wouldn't have raised TjMax if they thought otherwise. TjMax represents the highest safe operating temperature for a C2D so a bump up in this rating is a sign that Intel is pretty confident in these new processors, even at extreme temperatures.It might even be that 45nm is more sturdy than older chips.
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