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Resolving Sigmatel C-Major Audio Driver Error

This document applies to HP Pavilion dv4/dv5/dv6/dv7/HDX16/HDX18 series notebook PCs with Windows Vista.
Sigmatel error may appear
The following error message may appear when using the notebook PC:
Problem caused by Sigmatel C-Major audio driver This problem was caused by Sigmatel C-Major audio driver, which was created by Integrated Device Technology, Inc. and is distributed by your computer manufacturer. To solve this problem, go online to your computer manufacturer's website and search for Sigmatel C-Major audio driver updates.
The Sigmatel C-Major audio driver update is available on the HP Software and Drivers site as the IDT High-Definition Audio CODEC Driver.
Different notebook models may require a different version of the IDT High-Definition Audio CODEC driver. It is important to install the specific audio driver for your notebook PC. Take the following steps to stop the error message from appearing.
Prevent the error from appearing
Resolving the problem requires two steps on most notebook PCs. First update the BIOS then update the audio driver.
Update the BIOS
Use the following steps to download and install the latest BIOS for your notebook PC.
  1. Go to the HP Software and Drivers page for your notebook PC.
  2. If necessary, select the operating system that you are using from the list.
  3. Under the section BIOS, click the WinFlash for HP Notebook System BIOS link.
  4. Click Download only and then Run.
After updating the BIOS and restarting the notebook PC, download and install the IDT Audio driver.
Update the audio driver
Use the following steps to download and install the latest audio drivers for your notebook PC.
  1. Go to the HP Software and Drivers page for your notebook PC.
  2. If necessary, select the operating system that you are using from the list.
  3. In the Driver - Audio section, click the IDT Audio Driver link.
  4. Click Download only and then Run.

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