cosair cx 430
msi gtx 560
Your Corsair CX430 PSU has enough power for your system but it only has the 1 PCI-e power lead for video cards.
And your MSI GTX 560 has a requirement for 2x PCI-e power leads.
So you'll end up using the Power Cable in the video card accessory pack for the 2nd PCI-e power lead.