I have an EVGA GF GTX 560 2GB that I installed last week. I had been having intermittent crashes during certain games, especially Hitman Absolution, which is very graphic intensive. It has happened about a dozen times.
The card has 2 6-pin power connectors. My PSU had a single 6-pin plug. But the card came with a couple of adapters. So when I installed, I plugged in the one from my PSU and I plugged in one of the adapters.
So I go and take a look inside today and noticed that the adapter has two female Molex connectors. At first glance, I assumed it was 1 female and 1 male, like a lot of these adapters are for fans and such. After noticing the other female, I plugged in another male Molex so that I now have juice from two connectors running into the 6-pin pci-e.
So far so good. I played Hitman for about an hour without a crash. My question is, would having not plugged in the other female molex account for the crashes? My PSU is 600W.