Originally Posted by Silent_64
Indeed, Rock Solid can be misleading, your chip might be able to take much, much more and still remain stable, or it might not. Not having crashed, or shown signs of instability after a weeks hard usage has left me to believe that my system is capable of handling the +15% OC.
However I must disagree with codename on the "safe" overclock, in my own experience on desktops I've learned that most processors are very "here-to-and-not-further", I do believe that there is no such thing as a safe overclock, you are pushing the system beyond what it's meant to do. But if the system proves stable, and you have the adequate cooling then I have no experienced that it an overclock has shorten the chips life. Is might be because that these chips are very sturdy and made for many many years of use so you'll probably never get to see one fail. So I do not believe that the +15% opposed to the +6% OC should have any noticeable effect on the processors lifespan
Having said that, if you do not know what you're doing, you better not be trying at all, overclocking is not especially risky when you know what you're doing, then you know what the danger signs are and when to stop. True the Pentium M has proven to be very OC friendly but as Codename has said all along we are working within the confined space and it can be risky.
Is this data definitive, no it's not. If you read my review on the 5720, I am the first to speak of the dangers of OC'ing. However, the newer P-M's are contructed of extremely small transistors (90nm) running at lower voltages that attribute for thier ability to be OC'd as much as they can be with relatively little issue, heat kills electronics and the P-M produces little heat. This really all comes down to the fact that the smaller you can make a transistor, the less heat it will make. The smaller the transistors, the more that can be placed on the chip increasing it's computational potential (Logic gates). A smaller transisitor requires less energy then a larger transistor, therefore a lower voltage can be used. Gosh I could talk about CPU architecture all night, you all get the point...