Asus Audio Card Xonar D2 - Manual (Page 13)

7 ASUS Xonar D2
3. Installing the Xonar Hardware
3.1 Preparing Your Computer
Before you proceed with the following installation steps, it’s recommended that you
disable your onboard audio device in your BIOS settings, or uninstall any other
sound cards on your PC. (For BIOS setting or uninstallation of other sound cards,
refer to the user manuals of your motherboard and sound card)
1. Power off your computer and disconnect the power cord.
2. Open the computer’s case.
3. Remove the metal brackets from two unused PCI slots (You can just remove
one if you don’t need to use the MIDI board in the package).