Corsair is a proven brand of PSU but recently the CX600 is one that has had it`s fair share of failures and bad reviews so I suggest that you get it tested by a local tech store to make sure that it is not responsible for the MB and GPU failure, many stores will do this for free or for a small fee.
Which is your CPU on the list below;
AM2+ Phenom Quad Core HD995ZFAJ4BGH(BE) 140W Agena 2600MHz 2000MHz 512KBx4 2MB B3
AM2+ Phenom Quad Core HD995ZXAJ4BGH(BE) 125W Agena 2600MHz 2000MHz 512KBx4 2MB B3
AM2+ Phenom Quad Core HD985ZXAJ4BGH(BE) 125W Agena 2500MHz 2000MHz 512KBx4 2MB B3
AM2+ Phenom Quad Core HD9850XAJ4BGH 125W Agena 2500MHz 2000MHz 512KBx4 2MB B3
AM2+ Phenom Quad Core HD9850WCJ4BGH 95W Agena 2500MHz 1800MHz 512KBx4 2MB B3
AM2+ Phenom Quad Core HD9750WCJ4BGH 95W Agena 2400Mhz 1800MHz 512KBx4 2MB B3
AM2+ Phenom Quad Core HD9750XAJ4BGH 125W Agena 2400MHz 1800MHz 512KBx4 2MB B3
AM2+ Phenom Quad Core HD9650WCJ4BGH 95W Agena 2300MHz 1800MHz 512KBx4 2MB B3
AM2+ Phenom Quad Core HD9600WCJ4BGD 95W Agena 2300Mhz 1800MHz 512KBx4 2MB B2
AM2+ Phenom Quad Core HD9550WCJ4BGH 95W Agena 2200MHz 1800MHz 512KBx4 2MB B3
AM2+ Phenom Quad Core HD9500WCJ4BGD 95W Agena 2200Mhz 1800MHz 512KBx4 2MB B2
AM2+ Phenom Quad Core HD9450ODJ4BGH 65W Agena 2100MHz 1800MHz 512KBx4 2MB B3
AM2+ Phenom Quad Core HD9350ODJ4BGH 65W Agena 2000MHz 1800MHz 512KBx4 2MB B3
AM2+ Phenom Quad Core HD9150ODJ4BGH 65W Agena 1800MHz 1600MHz 512KBx4 2MB B3
AM2+ Phenom Quad Core HD9100OBJ4BGD 65W Agena 1800MHz 1600MHz 512KBx4 2MB B2
Asking for advice on new parts on more than one forum is less likely to go wrong for you than if you were troubleshooting a computer problem however members and staff are proud of their own forums and so quite rightly do not go promoting other tech sites on them.
Just a FYI, if you were asking a question on a particular topic and that information was not readily available here at GTG you will tend to find that someone will always point you in the right direction