my max fsb is 520 on my DFI Mobo thats stable but i need much higher vcore cause i didnt test the GTL voltages but look at the Q9650 tread you will see that every one that has a UD3P has realy good OC's with the Quads its famous for Quads still i like my DK P45-T2RS+ i just need to take some more time and since its weekend now updating bios