integrated sound card problem

Hello, recently i have taken out the usb slots on the front of my computer. The reason I did this was to give to my brother, he only has 2 working usb slots and needs 4, no idea what he did to the pci usb slots i gave him. So I decided I would just give him the fron slots, I didn't use them. There was also a mic and headphone jack with the 2 usb slots. I didint use them either and didnt want to go through the hassle of serperating them. When i turn my computer back on, theres no sound!

I went to sound properties and set all the output to the realtek ac97 audio, and still nothing. I than tried looking in the BioS. under the integrated pepheriables tab there was an option for the realtek, Auto or Disable.... I dont know wht my computer is thinking but the realtek is the only sound output in my computer. I don't know where to go from here but to buy a new sound card:S