Advice 1: As in the bios to turn on the sound

You buy a used or discarded computer and notice that he refuses to play sounds. There may be a problem in most audio card. But if You are sure that the card is defective, there is a possibility that the sound disabled in the BIOS. So do not just accuse the seller of fraud: maybe the computer was just in the office where unnecessary often disable the built-in sound card. So, check the BIOS.
As in the bios to turn on the sound
Instruction
1
Turn on the computer. On a black screen appears with white letters. To enter the BIOS, in most cases, it is necessary to press the Del key before the operating system. In different versions of the BIOS the start button may differ. Not to be mistaken, look at the bottom of the screen. There should be a sign like press X to enter setup, where X is the input button in the BIOS. If you do it right, you will see the directory indicated by white letters on a blue background.
2
BIOS is "basic input system output" of your computer's hardware and attached devices, including the clock, system plug'n'play, USB, etc. Devices are classified by type and, depending on accessories, are in certain tabs.
3
Select the desired parameter with the arrow keys and press Enter. Built-in sound card will be on the Integrated Peripherals or Advanced - again, depends on the model BIOS.
4
Find the AC97 Audio Select Onboard Audio Controller or (any other similar name containing the word audio). If the option is written Disabled – this means that the sound device is disabled. Modify this parameter, press Enter and select Enabled.
5
To save the settings, follow the prompts printed at the bottom of the screen. If it says F10 - Save, this means that, by pressing F10, you retain options. Perhaps such a function, then exit to the main menu of the BIOS – press Esc and you will be taken to in the previous paragraph. Choose Save & Exit setup (or Exit & Save Change).
6
The system asks the question highlighted in red: Save to CMOS and EXIT (Y/N)? It means "to Save the settings and exit (Yes(true)/ No(no))?". Press Y. If you doubt the correctness of the performed actions, press N or choose to Exit this item without saving, which means "Exit without saving".
7
The computer will go to reboot. No longer go into the BIOS and allow to boot the operating system. When it loads, the speakers will sound the call to boot the system. So you determine, involved whether the sound.
Note
Model and BIOS manufacturers may vary. If the above tips did not help you and you did not find the relevant BIOS - look for information on your version on the official website of the motherboard manufacturer.

Advice 2: 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.
How to configure sound in the BIOS
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.
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