<blockquote><font size=1>Svar på:</font><hr><p><i>"From AcesHardwares P4 review."</i>
Looking at the pure numbers you might think that Intel Northwood chip is a bit of a failure, as even at 2.2 GHz it is hardly faster than the Athlon XP, and quite a few times, in fact, it is slower. It must be said, however, that the Northwood chip overclocks very well. The 2.0 GHz Northwood was able to achieve 2.3 GHz at 1.6V (115 MHz FSB), and it was able to run at 2.4 GHz at 1.7V (120 MHz FSB). The Northwood 2.2 GHz was able to reach 2.53 GHz (115 MHz FSB) at 1.65v and 2.574 GHz at 1.7V. I am sure you will read of much more spectacular overclocks on the Internet, but note that 1.7V is already to much for a 0.13-micron chip.
In fact, did you know that these kinds of overclocks (voltage >110%, clockspeed >115%) are used to evaluate the durability of a CPU? CPUs that can last 10 years or more at their normal voltage, should be able to live a few weeks at these kinds of voltages. Don't use such high voltages (>1.65v) when overclocking because the finer the process, the fewer the number of atoms are used to make a transistor and the more likely it becomes that electromigration damages your chip. <p><hr></blockquote><p>Looks like we have an indication why Abit has lowered the max. Vcore setting to a measly 1.65V. Apparently ASUS sees it a bit differently. The high 2.20V setting Abit allows for the P4 Willamette should also then be clearly shortening the life of the CPU.
/Copenhagen - P4 Willamette 1700MHz@2109 MHz, Vcore 1.75V@2.20V on Abit TH7II-RAID.