You probably have a chip on your motherboard.
If you're experiencing issues with your Conexant drivers, try these troubleshooting steps: conexant drivers
When the driver breaks, Windows still thinks audio is playing, but you hear nothing. This usually happens because: You probably have a chip on your motherboard
Do not go to Conexant.com (it’s useless). Go to your laptop manufacturer’s support site. Windows still thinks audio is playing
Conexant drivers act as a "translator" between your Windows hardware and software. Without the correct driver, your system cannot process sound inputs (microphones) or outputs (speakers) correctly.
Once you've downloaded the latest drivers, follow these steps to update them:
A common failure mode occurs when Windows Update attempts to install a generic Conexant driver that conflicts with the OEM-customized driver.