First check the ram for any marks on the contacts, if one of them is blackened the ram is burnt. If not, try to test it in another computer to see if it works.
If you don't have another computer handy, first try taking out all unnessecary pci cards, hard drives, and cd drives (in fact, if you are not even getting to the bios, just yank all the hard drives out. the bios should complain if you ever get booted into it).
Apart from that, try booting w/o the ram and see if the same problem occurs. And if all else fails, unscrew everything in sight (including the motherboard), sleep on it for a day (not on the hardware itself) and put it back together after you are not tired. annoyed, ancy, or high. You won't know what was wrong in the first place with this method, but it sometimes works.
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( o< --!"Take that bass out you're voice, you talk to me in treble."
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