What's the max vpll people put on a Q6600? and vmch on a P35?
http://www.overclock.net/intel-mothe...p45-ud3-4.html

First 3 posts or so cover PLL Voltage, I would be scared of 2V, I'd say bump it down to at least 1.8V, but I'm no expert and it's your chip . For the MCH or NB voltage I would say as long as it's not at extreme temperatures I wouldn't worry too much.