Maximum recommended voltage for DDR3 is 1.57v according to JEDEC. That's not what the guy is saying. He means there is no voltage limitation on ram modules due to the CPU/NB like on Intel CPU's. The ram still has to be able to handle high volts. I don't know of any Kingston modules that are spec'd for over 1.65v, only Corsair comes to mind. There's absolutely no need to run much higher than 1.5v, even 1.65v is unnecessary.