try a few things. clear NVRAM and see if it posts (remember to keep it on the cleared jumper until it beeps a few times). If it doesn't, may want to make sure the MBD isn't grounding out to the case. try running it OUTSIDE of the case. Just dont do this on fuzzy carpet, use rubber if available. Once all parts are out of the case try again if it runs its a grounding issue with the case.
If you argue with an idiot he will drag you down to his level and beat you with experience.
I am not a fast writer.
I am not a slow writer.
I am a half-fast writer.