Hi,
I also have an Asus MB with Realtek onboard HD audio, I had repeated bluescreens with T34 vs Tiger whenever the tank took a hit which I solved, as there's a memory leak bug in Realtek HD Audio drivers AFAIK:
Look at the link below for further information:
http://www.subsim.com/radioroom/showthread.php?t=161177
It might be totally un-related but just might help
Best Regards
Aces