How to configure sound in the BIOS

Configuring integrated sound card can be done in the BIOS. This can be useful if you need to disable the built-in sound card after installing an external sound card, or there was a need of sound settings at the hardware level. But be careful, when making changes. It would be nice to record the changing parameters and values in order that in case of failure to restore the previous state.

You will need

• The computer with the operating system

Instruction

1. At the beginning boot the computer enter the BIOS. Most often this can be done by pressing the Del key, at least – F2 or F9. Tip on the button to log usually appears at the bottom of the monitor when you turn it on.
2. In the download window BIOS, find the section (or tab depending on version of BIOS) Integrated Peripherals. Press Enter to enter this section. Here is the configuration of the periphery. You will see the list integrated in motherboard devices.
3. Look for Onboard Audio Controller or similar in meaning. Different versions of BIOS the name of the items and options may vary. Open the list of options located in this section.
4. Now depending on your goals change option values. If you want to use the inbuilt audio controller, the parameter value HD Audio is set to the Disabled value, and AC97 Audio is enabled by setting the Enabled value. Conversely, if you connect an additional audio card, disable the built-in AC97 Audio controller.
5. More fine tuning built-in sound card will be the following options: 16-bit DMA Channel 16-bit DMA channel to work integrated sound Board with direct memory access, bypassing the CPU. Option Base I/O Address allows you to set the address of the I/o to work with the sound card. The default value is 220. Option Audio Select IRQ sets the interrupt used by the sound card. The default setting is IRQ5.
6. Save the changes in one way – by pressing the function key F10 or by clicking on the tab and selecting Exit Exit & Save. Confirm saving by typing the letter Y and pressing the Enter key. The computer will reboot, and you will start work with the new settings.