ASUS P4SDX Deluxe Review @ Hardware Zone

"Strangely, the deluxe version of the P4SDX comes with system bus settings up to 166MHz only. The good thing is that the board will allow you to overclock all the way to 166MHz, but that's about it. This left us with a rather sour feeling as we felt that there's more untapped potential in the P4SDX Deluxe. The non-deluxe version, however, has settings up to 200MHz. "
This usually means that there is some other chip or hardware peice that can't run at any speed above 166 so they have to limit your overclocking ability or risk system instability.

Related Web URL: http://www.hardwarezone.com/articles/articles.hwz?...