As I recall my own kit of Ballistix PC2-8500 would not boot on my P35-DQ6. I had to use my other RAM to boot into the BIOS and first change the RAM voltages before the system would even POST with Ballistix installed... all of my Gigabyte boards are that way though.
Core i7 4770k 4.2Ghz
Crucial Ballistix Sport LP 1600MHz 32GB
EVGA GTX 480 HydroCopper FTW
ASUS Xonar DX
Corsair Neutron GTX 240GB | Windows 7 64-bit
Apogee XT + MCP655 & Thermochill Triple 140mm Radiator
Corsair AX1200 PSU | Cooler Master HAF-X