Hello, I currently have a stock xps 630i desktop, and i am looking at placing a HD 5970 graphics card in the system, but i am worried about the power, it has a 750 watt power supply, but it only has 2 6 pin plugs for the PCI-E power (currently being used by 2 9800gt in SLI). I was wondering if it is possible to use a HDD power cable or something? adapters from 6-8 pin?
I was hoping that i could use a HDD one with adapter or something, so i can still use 1 9800gt as a PPU... Or will i have to buy a new power supply? trying to save money.
Any help would be great.
You do not need an adapter. Like nomad said, the only difference between 6 pin and 8 pin plugs is the number of ground wires. Each has 3 yellow hot wires. The number of ground wires will not affect the amount of power that the plug can provide.