I have acquired this power supply after I a new video card in my PC einbaute me (Geforce GT-750ti). Shortly after installation, the PC switched each time in games from a few minutes later and reported a shutdown due to voltage fluctuations ("power supply surges"). Since it was suspected that it was the power supply, I swapped my 600 watt no-name unit (manufacturer Raptoxx) against this. Although it has fewer watts, my system works so easily, since there was not a single crash. Because it shows how wrong it can be to save the power supply. Better you buy from the outset a quality product, as of Be Quiet.