Hi, I just got some problems with my sound on my Dell XPS 630i Dimension, and I want to see if my sound card is broken or something. So I tried to activate my onboard audio instead, but when I went to the bios, the only thing that reminded me of ''activating onboard audio'' was ''Enable HD Audio'' so I activated that. I also unpluged my sound card (Sound Blaster X-Fi extremegamer) and installed the ''realtek onboard audio'' driver. But my sound is still not working, but I can hear a sound in my headset when I unplug and plug in my microphone, but I know that my microphone is not working, so I didn't test it more than that. I've also tried to hear if I get sound with outher headphones or sound speakers.