Now watch your temps. Raising Vcore has a big effect on temps.
You also might want to run the Folding@Home project. If you get lots of Work Units ending early then your system still isn't stable and you will probably have to increase Vcore a little more.
I had to increase mine to 1.775V before it was completely stable and the temps were too high with stock cooling at that voltage, but that varies from processor to processor.