Originally Posted by TSXmike
so whats that mean for the long run?
is there a discussion about this anywhere?
My Extreme4-M overheats with high overclocks (above 4.4g) and throttles the cpu back to stock clocks once VRM temps reach around 75C. It's capable of running 5GHz stable, but not able to supply the power in the long run. After a while under load the clocks jump between stock and OC. This is something that can be observed under IBT or Linx torture runs, but not in normal usage.
Don't know about the full size Extreme4. It should handle the power better as it has a slightly more robust vrm stage.
Otherwise, the heat is energy lost which means the board uses more power comparing to more efficient constructions. Better quality VRM designs may keep the cpu stable at lower effective voltages which in turn may lead to better max overcloclocks and/or lower temperatures.
I'd say for the average overclock on air, these boards are OK. For anything more, it's really worth it to pay extra.