hey I am building a pc and I have no graphics card yet this will not be a gaming pc from the start but I got 4gb ddr2 ram and a core 2 duo processor and a dell motherboard and a cpu cooler all in one package so I tried to power it with a 250watt powersupply first try it worked but now it does not so I tried a 300 watt powersupply still same issue and I am wondering if it is the motherboard or the powersupply so what happens now is that when ever I plug the power cord in a orange light will glow on the motherboard fans do not spin and nothing shows on the screen and the green light shows on the power supply I Really need help plz someone help me