On my laptop i got bsod, postsys hangs. Soundmax soundcard (compaq nc6220)
And the samthing on my station, asus p4pe motherbord whit soundmax coundcard.
If i disable the soundcard on the station motherbord inside the bios i can install the driverpacks. no bsod.
but i cant disable the soundcard on the laptop 
hope this info helps out.
// D