ASUS Rampage Extreme Motherboard

I personally think the Q9550 is a better deal. The Q9450 will probably do well enough, but it won't last too long if you overclock it to a high speed, the 9550 will.

 

If i have the 4870 X2 and the Q9550, which motherboard should I get?

 

You still don't really need to change it unless you want to overclock to the max, in which case get the Rampage Formula.

 

Because my brother needs a motherboard that supports PCI express slots, so Ill just give him mine. So I should get a new board. But why the rampage formula? Because I need a motherboard that can overclock with stability

 

You may as well keep your expensive board and buy him a cheap board like an EP31-ES3G or EP43-DS3L. If you're into heavy overclocks though, give him the Maximus and buy the Rampage. I suggest the rampage as I know someone personally who owns one and has successfully overclocked a Q9550 beyond 4Ghz, and it's not even the better version of the CPU. Of course, whether that's truly stable or not is another matter, but everybody I know who knows about them highly recommends the Rampage Formula board for overclocking.