Will this upgrade work ?

[FF_Guy]

I already ordered a Gainward 2GB OC GTX 960 and 8GB RAM. I will order CM G550M to power it. Later ( in about 2-3 months), I will order i5 4690.Currently I have a Pentium G3220, GT 630,and 6GB RAM and a really really cheap 500w PSU. Will this upgrade work? I will buy the CPU (i5 4690) later. Will everything work ?
And also my mobo is AsRock H81M-DGS

 

[bignastyid]

Yes. The g550m isn't the greatest but is more that likely much better than what you have now.