Please help! Just transfered Motherboard to new frame! Sound doesn’t work!

Okay, so here’s the deal. I got a new frame for my entire computer system and everything is working great. But, there is absolutely no sound. Before I transfered it, the sound worked perfectly. I tried reinstalling the chipset devices and the sound drivers. It’s an AC97′ Realtek Onboard… The speakers are plugged in, the sound’s on full, and there are no error messages at all. What’s the deal? Can anyone help?