Dell Xps Amber Light

Problem with Dell XPS 420?

After the supply of energy she died I replaced it with one that was better, but still had the necessary cables. Everything is connected correctly but all I get after connecting the power back is an amber light on the motherboard with a green light flashing no USB port, begins running there is no sound that I have removed all the parts and put it back to make sure they are safe, but there is no that had this problem, but fixed it? Any help would be appriciated after playing with this thing damn long that I really like to get it to work Thanks in advance

420 Mann, leave the computer Fix You

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