The Q6600 should be running at a 6 x multiplier if C1E is enabled under CPU options. It will rise up to a 9 x multi when there is CPU load. If you are talking about in the BIOS then just change it to 9 x and call it a day. The RAM voltage may not need to be 2.2 v if you aren't running it at it's rated speed. You've got to remember that you now have a DFI motherboard and they need some attention. If the system fails stress tests at the settings the BIOS defaults to then just change them to settings that don't fail.