Dead motherboard?

I have an old Dimension 4700 and all of a sudden I start getting a yellow/orange flashing light to the front and computer will not light. The diagnostic light turned not and nor fans work.

So I guess it was a power failure.  I have replace the power supply, the fans began to work, spinning and now I have a yellow fixed light, is no longer a flashing and nothing else happens. I have not yet switch on the diagnostic lights. I removed the network card and the memory to see if there was a problem and nothing happen too.

What think you of all?  Can I have a dead motherboard?  If he's dead, why always to see a green light from the Board of Directors. ?

Thank you.

Everything should work as before, but the internal service label will be different.

This is a reasonable price: www.ebay.com/.../121090652864

Tags: Dell Desktop

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