Hello, during this week I have successfully overclocked my XPS430, by using the PLL. Which contains all the FSB information etc. I used CPUCooL, and reached a stable clock of 2.71Ghz on my Q8200 which runs at 2.33Ghz stock. My system specifications are currently. DELL XPS 430 M/B. DELL XPS powersupply 375W - 425W Upperlimit. "MAX" INTEL X48 CHIPSET. CPU INTEL Core2Quad Q8200 2.333Mhz stock -- OC! 2.71Ghz. CPU INTEL Core2Duo E6750 2.666Mhz stock -- OC! 3.2Ghz. 8GB RAM -- 2x2GB Elpida--2x2GB Corsair. GPU-- SAPPHIRE HD 5770 1GB GDDR5 850/1200Mhz. Up to 900/1300. HDD's WD 2000GB Green caviar. HDD's WD 1000GB Green caviar. Creative X-FI xtreme audio soundcard. Any questions about how I did this overclock, I will answer as soon as I can.