Here to join the club, made some changes to my overclock settings, just got it stable on LinX and IBT

Q9650@4.2Ghz 1.344 Vcore
Idle at 37C Full Load using IBT at 71C
Cheers

Added on April 10, 2009, 5:59 pmErm, unless you're using Nvidia chipset, else I think is not possible to unlink your RAM with FSB. In short, your RAM Clock is strapped to the FSB. You raised your FSB to overclock your CPU, hence RAM clock will be go either higher or lower depends on how you set your multiplier.
Your RAM probably won't screwed at 847Mhz, instead if your RAM can't tolerate the additional 47Mhz, it'll cause your system become unstable. For a simple and effective test, run memtest86 for at least two passes, and see if any errors, else it's good to go

If errors detected, you can either put more juice to your RAM (of course you should know where the safe limit is), or lower the clock to 706Mhz and tighten your timings. Which to do is up to you.
What RAMs you got btw ?
I'm using two corsair gaming ram ddr 800 5 5 5 18. If i drop my ram clock to 706mhz, how to i tighten my ram timing?