Mother board

Remove all peripherials, i.e .drives, video cards, even memory. Leave Power Supply connected. I hope you disable power while removing or installing components. Try to boot up motherboard with nothing except P/S connected. Assuming no beeps there, hook up one or both memory modules at which time there should be error beeps indicating no video card attached, etc. If you are then getting the bios beeps, there is a good possibility that the motherboard is good. If there are no beeps, then one has to consider the possibility of a bad motherboard or a damaged bios. Tell me more about motherboard manufacturer and model #.. All this is necessary to properly research your issues