edit also there was an old rumor that the card used to pass on the secondary vid settins to your monitor (blowing the monitor) I dunno first thing I always do when I upgrade my drivers is disable the "secondary 9800 pro" in my devices.
to elaborate anything connected to anything that is plugged into when a storm hits is in danger
Ive seen pcs blown turned off with surge protection from lighting im so anal about mie I even unplug my nic cable incase a surge comes in from the router in the other room