Asus Crosshair III Formula - Manual (Page 55)

2.7.2 Audio card Installation
1. Take out the Audio card from the package.
2. Locate the audio slot on the
motherboard.
3. Align the card connector with the
slot and press firmly until the card
sits on the slot completely.
4. The photo below shows the audio
card installed on the motherboard.
ROG Crosshair III Formula 2-27