Just to add some info on what you were answered, on points 1 to 3:Originally Posted by fng77
Opposed to B3 old steppings, with G0, you'll ususally be limited by temperature before exceeding vcore intel limits of 1.50v. But, be careful, when you enable loadline calibration on any vdroop compensation, you actually overshoot usually by up to 0.09-0.1v. If we accept a normal envelope set by intel as 5%, and consider 10% to be a safe margin, these 65nm chips wouldn't die so fast up to 1.5v +10% : 1.65v. So, even with vdroop bypass techniques enabled, you'd be safe with a bios setting of 1.55 vcore.
About the temp, I'd monitor with coretemp. Personally, I feel anything higher than 69°C with Prime95 small FFT is too hot. But, 69°C in Prime95 small FFT won't exceed 60°C in most usual daily tasks, even video encoding
As of 4GHz, forget it on air for 24/7 unless you are at constant 10°C ambiant. On water, only few selected and valued chips will do it, so forget it too. 3.6GHz is sweet spot, 3.8 GHz on many low vid L7xx batches and 3.9GHz on some L7xx batches with quality motherboards (P35 for full stability)
My chip can do 3.9GHz stable P95 small FFT at 1.47v. For memory bandwidth issues, I opted for 3.84GHz
This is only when you exceed 1.50v to 1.55v on the vcore for a quadcore on high quality PWM motherboards. On lower end models, it will be a problem as you exceed 1.45v, sometimes beforeI also heard that some people had problems with mosfets overheating when oc:ing quadcores. Is that some thing to worry about with stock Asus cooling, with the standard bad contact between mosfet - heatsink.
My thermalpad looks something like this, without the brown(so far)
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