Need help deciding psu and cpu and mb....

Taichi01

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Dec 19, 2015
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I have decided to buy an r9 390.I am thinking of buying a 650w psu.i5 4690 and a GIGABYTE GA B85M B3H.The questions....
:??:
1.Will the motherboard support crossfire for r9 390(in future)?
(If not plz recommend a cheap mb that does.)
2.Will i5 4690 bottleneck my crossfire?
3.Does motherboard matter for oc'ing gpu?
4.Will 650w be enough(non-crossfire but also tell if oc possible only on gpu)?
THANKS A LOT...:)