Asus P6T / Rampage II Extreme: no "CPU VR Current Override" ???

[dejanh]

Then im pretty certain now that its temperatures that are the stumbling block, at least in my case.
Its a lot clearer now.

In my case I need the cascade on it if the theory is correct. btw, im looking for high benchable oc, A stable 24/7 base oc is always a good place to start for me
so this thread has been very helpful so far in many respects.

Temps are the stumbling block. Basically, here is my take on the i7 TDP limit behavior on the Asus boards and based on what I have observed in the past with GPUs and over-current protection circuits...

There is a 130W TDP limit on the chip and that cannot be turned off on Asus boards. Now, say that you set your voltage on the i7 920 at 1.4V for a 20x200MHz (21x turbo). This means that the maximum current can be 130W/1.4V ~ 92.85A before you will exceed the TDP limit. However, increasing temperatures cause more current leakage and hence the current increases further and beyound the allowed limit. If you can keep the temps down, you reduce current leakage and you stay below the TDP limit. If not, well, we all know what happens then.

Asus sort of screws us double with this TDP limit IMO. Increasing the volts to stabilize higher OCs while having the TDP limit on causes the current threshold to lower as you increase the voltage requiring better and better cooling, not just because of the sheer fact that higher voltages will produce higher current and more current leakage, but the current gets to be too high and exceeds the TDP limits.

Annoying...