How do I change my primary graphics card in ASUS BIOS?

1. Restart or power on the computer. …
2. Select "Exit/Advanced Mode," then "Advanced Mode." Use the directional pad to select the "Advanced" tab.
3. Scroll to "System Agent Configuration" and then press "Enter."
4. Select "Initiate Graphics Adapter" and then press "+" or "-" to change the value to "iGPU."