Hi, I have a Dell XPS 700 that came with a 1000-Watt power supply. On the 12-Volt Rail it produces 18amps. I bought a GTX 280 that requires 42amps minimum. Now as many of you know that GTX 280 requires an one 8-pin connector and one 6-pin connector. In my computer there are four 6-pin cables. Luckly the card comes with a converter now this is very important, I connected one 6-pin directly to the card then I connected the 8-pin converter (8-pin side) to the card the other end of the converter cable takes two 6-pin cables. So this is how the setup is now there are three cables connected to the card one 6-pin directly connected to the card and two 6-pin connected to the 6-->8-pin converter cable and then the 8-pin into the card. So what is the total Amps I am feeding the card is it 36amps(18+18) of 54amps(18+18+18). My reason for asking is because my card keeps turning off by it self a red light appears and the monitor does not get any signal. And it can happen any moment sometime just after startup or some time after runing for hours or even a day or so, its very frustrating any help would be greatly appriciated I am anciously waiting for replies from the gurus.