Nehalem Overclocking @ XS

[Sampsa]

Runaway amp phenomena, I hook an amp meter to the four yellow wires on eight pin power cable that connects near the CPU. Watching this you will see that yes you can keep scaling up with more voltage but your chip has a limit with all cores loaded that it will runaway on amps till it crashes. I know exactly what range to stay in with cores loaded to know not to hit this runaway threshold. Keeping vcore down and disabling HT lets me run at the chips max speed, HT has an added power load on the CPU, disabling it helps gain critical Mhz.

Hmm, what method are you using to measure the current? Cutting the wires and adding multimeter in series or clip-on ammeter like this http://www.hotektech.com/GMCMetraclip70.htm from one of the yellow wires or from all the yellow wires? What kind of values you see? And what value is the limit (runaway threshold) when cores are loaded? Is it some Intel spec or experimentally figured value? Thanks

edit: looks like you can use LTS 25-NP current sensor:

http://www.silentpcreview.com/article313-page4.html

Product page: http://www.lemusa.com/hq/en/componen...0.37.19.000.0/