Computer Won't Start II: The High-Pitched Whine

[Archduke Tips]

What exactly did you do to clean it up? It would be easier to diagnose the problem if you could talk about what you did before the problem occurred.

I would start by pulling one RAM module at a time to see if one of them is bad. I would do this with the old RAM and leave out the new RAM, that way you can eliminate any problems with incompatible RAM.