Installation:

Windows 2000 , XP :

Step 1. Before installing the Realtek High Definition Audio Driver, Press the
[Cancel] button if Windows detect the Multimedia Audio device.
Step 2. Run the setup.exe program to start the installation.
Step 3. Click on [Next] to continue the procedure. If the Windows popup
"Digital Signature Not Found" message, press [Yes] to continue the
installation.
Step 4. Finally, select to restart the system and press [Finish] to complete
the installation.
Windows Vista, Windows7 :
Step 1. Run the setup.exe program to start the installation.
Step 2. Click on [Next] to continue the procedure. If the Windows popup
"Windows can't verify the publisher of this driver software" message,
press "Install this driver software anyway" to continue the installation.
Step 3. Finally, select to restart the system and press [Finish] to complete
the installation.

What's New:

Realtek HD Audio Driver support all of Realtek HD Audio Codec .

1. Vista/Windows 7 WHQL Supporting: ALC882, ALC883, ALC885, ALC888, ALC889, ALC892, ALC861VD, ALC660,
ALC662, ALC663, ALC665, ALC260, ALC262,ALC267, ALC268, ALC269, ALC270, ALC272, ALC273, ALC887,ALC670, ALC275,
ALC680
2. Windows 2000/XP WHQL Supporting: ALC880, ALC882, ALC883, ALC885, ALC888, ALC889, ALC892, ALC861VC,
ALC861VD, ALC660, ALC662, ALC663, ALC665, ALC260, ALC262, ALC267,ALC268, ALC269, ALC270, ALC272, ALC273,
ALC887,ALC670, ALC275, ALC680
3. HDMI Device WHQL Support: ATI HDMI Devices
4. OS Supporting: Microsoft WindowsXP, Widnows2000, Windows Server 2003, Vista, Windows Server 2008,
Windows7 - x86/x64
5. Pack with Microsoft High Definition Audio UAAV1.0a(5013)
6. Add/Fix
1.) Driver :
1. Customizations.

For more information:
ftp://218.210.127.132/pc/audio/R251_Readme.pdf