I overclocked my amd k6-2 350 to 400 4x100. And it runs really good i tried high at the time but no luck. Oh and i did everything possible. So i just ran it at 400 for a couple of weeks and now its posting at 428 too. {4.5x95} But its getting to hot so i ordered one of those so loved global win fans and that should do it. My question is if i run it at 428 for a while do you think i will be able to achieve 450 on my 350 which is at 428 now?