So does that mean the TPX-775M is safe even w/o an AVR or something? And that it can handle GTX 560 Ti SLI?
For a system
using two GeForce GTX 560 Ti graphics cards in 2-way SLI
mode NVIDIA specifies a minimum of a 700 Watt or greater power supply that has a combined +12 Volt continuous current rating of 44 Amps or greater
and that has at least four 6-pin PCI Express supplementary power connectors.
The Thermaltake Toughpower XT 775W (TPX-775M), with its +12 Volt continuous current rating of 64 Amps and two 6 pin and two 6+2 pin PCI Express supplementary power connectors, is more than sufficient to power a system with two GeForce GTX 560 Ti graphics cards in 2-way SLI. There's plenty of spare capacity available for any overclocking of the CPU and GPU that you may want to attempt.