When you say Device Manager, do you mean Windows Device Manager, or the “Device” drop down menu in Media Express?
If the Intensity isn’t showing up under “Device” in Media Express, than yes, there is a problem. You’ll need to get that sorted out first.
If that’s the case, maybe in Bios the PCI-E slot is turned off, or quite possibly, the card isn’t fully seated in the slot. (I’ve had that problem a time or two)