Can you disable sound card from the motherboard?

Yes, you can disable the sound card integrated into the motherboard through the system's BiOS/UEFI settings or by disabling it in the operating system's device manager. In the BiOS/UEFI, look for audio settings and toggle the onboard sound option. In the device manager, you can right-click on the sound device and select "Disable." This will prevent the operating system from using the onboard sound card.