clear NVRAM, like I suggested as well as going bare minimum. You may want to reseat the bare minimum, but important to go bare minium. No cd/dvd, floppy, JUST a HDD (primary, no secondary). Make sure you've read and tried all of what I listed above. NVRAM is also called clearing CMOS, if you've tried all the above (try different memory mods and reseat them and the proc) and nothing works, sounds like a bad MBD. For a last ditch effort, you could try running with the MBD out of the case on a non static surface to ensure it isn't grounding to the chasis/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.