While I understand the frustration of answering the same questions again and again (I've spent enough time as a reg in support forums and IRC channels to know how it grinds you down), there is a certain amount of leeway you need to give. In this case, I'd just ask if the person has followed the sticky rather than assume that they haven't because they didn't mention it.
To the OP: I found myself with a completely unclockable E6300 and it turned out to be the RAM, which was Geil PC6400C4 too. Assuming that you have got everything else set up fine (voltages, memory timings and you're happy that you aren't simply overheating due to poor airflow or a bad heatsink fit), I would try a couple of runs with just one of your RAM modules in at a time. If you suddenly find that you can clock up much further then you've found your problem.
