George...replied in the other thread: http://www.xtremesystems.org/forums/...d.php?t=182310

Lewis23 - 570mhz was my limit on the P35 chipset...i could maybe squeeze a couple more mhz if a really went wild
these results should be more or less comparable to what is achieved by anyone as this is a standard retail kit.
it would likely do better with a modern nvidia chipset

bito - dual 32M super-pi was what i used for stability...its pretty good at knocking over a system if the ram is unstable