First of all the edit button is your friend. Secondly that sound very much like a dead chip but to check you could try the usual methods of fault finding. Start off with the minimum required to boot (so 1 stick ram, processor, graphics card, no hard drive. If that fails to post and you know all the other components are good then you have your prognosis right there. The only other thing that I can think of that might be your problem is perhaps the PSU might not be up to scratch? Just a thought which will probably be wrong :s