The thought did cross my mind that you meant x - as in any number, but as there was already a UD7 Bios named F6x you should see where we were a bit mixed up!

Nice bclk anyway Subaru, what's your max speed like? Volts for 4GHz & upwards?

If the user don't use this function and set a constant VID then the board will be silent.
Yes, I should have explained that better - you do indeed need dynamic VID enabled to get the noise, which is what I use on my 24/7 - 4.4GHz setup.