** Official ** Gigabyte UD3 P45 Series -- EP45-UD3 / EP45-UD3R / EP45-UD3P

[radaja]

I started thinking about upgrading my system from a my proven Maximus Formula + Q6600 @ 3.6 Ghz (9x400) setup. Memory timings and high FSB values are not important, I would prefer stability over anything else and the possibility to use 8 GB RAM.

I am looking for a UD3P based setup with either Q9550 or Q9650. Which one would you choose? I am aiming for about 4.2 Ghz, but with the lowest possible voltages. I am using TRUE120 with one Syche 2000 fan. I would aim for about 4.2 Ghz. It would mean 8.5 x 500 for the Q9550 or 9 x 470 for the Q9650. FSB 472 is more stable because of the 8 GB RAM, isn't it?

Or these boards are so stable up to 500 that it really doesn't matter? Can I easily use one with FSB 500 for 24/7 on the long term?

Do you think I can get a system which is as stable as my Maximus Formula was, which means once set up to be Prime stable it will be running without a fuss for years?

i would go with the 9650 and a UD3P/R and do 8.5x500@4250,and 8GB. its fairly easy to do with these boards
heres 8.5x508@4318Mhz with 8GB of ram
http://i40.tinypic.com/33epzeq.jpg