Do you need the PSU to support SLI if I have ASUS A8N-SLI Premium Socket 939 NVIDIA nForce4 SLI ATX AMD Motherboard but I don't have two video cards ( maybe in the future) I have a eVGA 256-P2-N516 Geforce 7800GT CO SE 256MB 256-bit GDDR3 VIVO PCI Express x16 Video Card. Please if anyone can clear this up for me.
