I just recently installed a new Zalman CNPS 9900 NT Heatsink. The computer is running fine and I am not having any issues other than my AC'97 front panel. When I turned the PC back on after install it started up and the front panel worked fine. After turning it off the first night for the thermal compounds break in cycle everything was fine. The next morning when I started up the front panel did not work. I am currently using the back plug ins, and it is working fine so far. I have plugged the AC'97 back in and re seated all of the front panel plugs. The motherboard was set back to all default settings which put the front panel back on High def audio. I went into the BIOS and changed the south bridge audio to AC'97 and it still did not work. I'm currently out of ideas of what to do.
Any help is much appreciated.