Solve : DP55WB motherboard?

1.	Solve : DP55WB motherboard?
Answer» ok so ive had 2 of these MOTHER boards so far that were bad now, on to my 3rd (came bad i didnt break them) and there is a green light right next to where the power supply connects to the MOTHERBOARD 24 pin connector. this green light has never been on on my last 2 motherboards. also there is a high pitch BUZZING type sound coming from the motherboard. i only have one card on this motherboard a 250gts video card and Ive checked and it is pushed in all the way. im at a loss here any ADVICE (besides get a new mother board LOL) thanks for reading hope to hear some good news =)

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