Ok I put the 430W psu back in and it fired right up. The card that I had in it was an HD 4650 and it gets its power directly from the motherboard it doesnt accept an external connectors. I assume the mobo changed something in order to run the card, any ideas on what it could be?
Also I unistalled all its drivers. And this was a factory built HP machine so there is very little I can change in the bios.