Currently, most PC sound cards as «On-board» means «placed by default in the main board" is. Company Realtek sound card chips in most computers are almost common.

Realtek HD Audio Driver Package software installation or upgrade of the sound card driver for Realtek used products. 
Key Features Software Realtek HD Audio Driver:
- Increasing the output sound quality.
- Compatible with Direct Sound 3D.
- Supports 8 channels.
- Automatic detection of input cables.
- Compatibility with a variety of Windows are.

Since installing the system drivers is important, therefore, strongly recommended that if your system with Realtek sound card is now installed this package so you can use all the Mac impulsivity and enjoy the capabilities of your sound card.

It is important to always keep your drivers updated after the release of the new version, be sure to download and install to always be able to get the best out of your system hardware.

List all the models supported by this package for Windows Vista, 7, 8 and 8.1: 
Windows Vista / 7/8 / 8.1 WHQL Supporting:
- ALC882, ALC883, ALC885, ALC886, ALC887
- ALC888, ALC889, ALC892, ALC899, ALC861VD
- ALC867, ALC900, ALC660, ALC662, ALC663
- ALC665, ALC668, ALC670, ALC671, ALC672
- ALC676, ALC680, ALC221, ALC231, ALC233
- ALC235, ALC255, ALC260, ALC262, ALC267
- ALC268, ALC269, ALC270, ALC272, ALC273
- ALC275, ALC276, ALC280, ALC282, ALC283
- ALC284, ALC286, ALC290, ALC292, ALC383
List all the models supported by this package for Windows 2000 and XP: 
Windows 2000 / XP WHQL Supporting:
- ALC880, ALC882, ALC883, ALC885, ALC886
- ALC887, ALC888, ALC889, ALC892, ALC899
- ALC861VC, ALC861VD, ALC867, ALC900, ALC660
- ALC662, ALC663, ALC665, ALC668, ALC670
- ALC671, ALC672, ALC676, ALC680, ALC221
- ALC231, ALC233, ALC235, ALC255, ALC260
- ALC262, ALC267, ALC268, ALC269, ALC270
- ALC272, ALC273, ALC275, ALC276, ALC280
- ALC282, ALC283, ALC284, ALC286, ALC290
- ALC292, ALC383
How do we find the model of your sound card?
The best and surest way for the correct model and manufacturer of your system to find parts that the manufacturer's site go to page Motherboard, Motherboard, where all necessary information about the different parts such as the default sound card in give it.

But if for any reason unable to understand how the company is making sure that your computer sound card, enter the Run log, where the type msinfo32, and then press Enter, the window into the Components section and click on the Sound Device if you see the Realtek High Definition Audio driver is given the appropriate hardware.