"But we are really frustrated that the overclocked MSI mainboard disables the power-saving features of the Intel CPUs as well. As a result, your CPU is going to consume more power than necessary if you overclock it on an MSI mainboard."

That's definitely a deal-breaker since there is no point in running an overclocked CPU at maximum speed at higher voltage in idle mode (which is where the desktop system is 80% of the time).