I am new to the site and I was hoping that y'all could help me with a problem I am having. I am building a new rig and want to SLI the EVGA GeForce GTX 660. The minimum power requirements of this care are 450 watts and my PSU is a Kingwin ABT-750MM Maximum Series ATX Power Supply. I was wondering if that PSU would be enough to power 2 of these cards. I see where it lists the PCI-E 6-pin connectors and PCI-E 6/8-pin connectors at 2 total so I know that this PSU will support multiple GPUs but I just want to know if 750 watts will be enough for power both of this cards.
GeForce GTX 660 - On your average system the card requires you to have a 450~500 Watt power supply unit.
GeForce GTX 660 SLI - On your average system the cards require you to have a 700 Watt power supply unit as minimum.