I just built an XP Pro Rig with the Kentsfield Q6600, the DS4 Gigabyte board, 2-750gig HD in Raid1, 2 gigs of DDR2 1066 Ballistix, and a Tuniq Tower exhausting thru the top of an Antec 900 Case. Went from 2.4 to 3.01 on stock volts, stock memory timing, stock everything. It primed with no errors. I actually took it to 3.2 on stock everything but it was unstable and hence useless. Since this is going to be a work computer I'm not willing to fiddle with it much.....but if it wasn't it would be a pure joy to tinker with......Oh! the temps.....27C idle 50C torture load that should speak volumes....and Oh! the 1M Pi.......17 seconds....thats almost double my 30 second SuperPi with the overclocked AMD Dual Core at 2.8.
The only shortcoming I see is in the memory latency testing......39 vs 69. Since this was my first intel oc I could probably tighten up the timings or the divider of something.....The Gigabyte board is somewhat cryptic when it comes to overclocking......The Abit 939 AMD board is easier to work with to me...but that is probably because I am most familiar with AMD and studied up on it more. Gotta go with the prevailing wind when it comes to computers though......