Conexant High-Definition SmartAudio 221 Windows 7 Drivers
Type : Audio
Compatibility: Windows 7, windows 7 32-bit, windows 7 64-bit
You can choose any of the drivers listed but you it is recommended to install base on your model. The driver will work on any model say compaq driver for acer will work. But it is your responsibility to get permission from the manufacture itself.
Lenovo (also support Conexant 20561 SmartAudio HD): Download
HOW TO INSTALL:
1. Download the driver first and double click to install.
2. Follow the instruction on the screen and reboot after installation.