motherboard sound

Hi! Ive been haveing an issue with a rattling sound coming from my computer a couple of days now (mightve been there for longer but i just recently discovered it when i moved the computer to a more silent room) and im very unsure what is causing it and if it is causing harm to my system. The...

Does anyone use sound cards anymore? I have been wondering if getting like a $100 decent sound card is worth it. I am asking if the audio on this motherboard would be similar to or better than a dedicated sound card. I have a very good audio system for my setup; but should I stick with just...