Via multilplier, yes... RAM has little to do with CPU OC
Via bus clock.... probably not much, and the RAM is going to hold it back as it now has much to do with the OC
Note that due to high power consumption, overclocking on the 955 should be done with a motherboard with proper 125W support and overclocking friendly (quality 4+1 phase with cooling at the least).
AMD 140W CPU Support
I think it should be enough as you said it
Thanks to all posts