Nublord

NB is at 2500mhz (250fsb x 10), doesn't seem to like being pushed to 2750. Yesterday when I was messing around I could pass a few IBT runs @ 1.47v... I think I'm gonna just drop it to 1.45 and see what happens.

As far as I remember I think 3.2 is the max for stock volts. What blows my mind is after all the tweaking I did with 3 cores, no matter what settings I used (RAM timings, RAM voltage, cpu multi, cpu volts, CPU NB volts,) it would fail IBT... yet when I unlocked the 4th core it stabilized it, crazy yeah?

Maybe I have a good X4 that didn't like being an X3.. I got the 720 (its an 0904) basically right when it came out and I've probably been in the BIOS like a thousand times since then... think I FINALLLY settled on something.

BTW, the 120mm Noctua HSF... seems no matter the speed or voltage, I'm idling around 37-41, load anywhere from 47-60. I've reinstalled it, tried different amounts of Noctua's thermal stuff, still get similar temps... guess I just got a heater

update: yep, 1.45 aint happening... pc just shuts down during IBT, 1.47 seems to be good

thlnk3r

Nublord, how much cpu-nb voltage are you running for 2500Mhz NB Freq? Just to clarify, are there more than two different ways of mounting the NH-U12P (orientation)? What is the airflow like in your case? Those Noctua fans in my opinion are kind of weak when it comes to pushing air. They are however pretty quiet.

Good luck

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Nublord

using 1.4v for that. chip seems to stonewall anything above 3.65, but a 3.64Ghz X4 is pretty cool