HD Audio Function 01: AMD Vendor 1002, Device AA01, Subsystem 00AA0100, Revision 1007

For many users, audio-related issues can be a frustrating hurdle, especially when they stem from hardware components like AMD’s HD Audio Function. The specific device ID mentioned—Vendor 1002, Device AA01, Subsystem 00AA0100, Revision 1007—points to a common audio controller integrated into AMD processors or GPUs. This component is responsible for managing high-definition audio output through HDMI or DisplayPort connections. When it malfunctions, users often experience problems like no sound, distorted audio, or unrecognized devices. In this article, we’ll explore the root causes of this issue, provide a step-by-step guide to resolve it, and summarize key takeaways to prevent future headaches.

The HD Audio Function issue typically arises due to software conflicts, outdated drivers, or hardware misconfigurations. Below are the most common culprits:

AMD’s audio drivers act as a bridge between the hardware and your operating system. Over time, these drivers can become outdated or corrupted due to incomplete updates, software conflicts, or system crashes. When this happens, the HD Audio Function may fail to communicate properly with your OS, leading to audio disruptions.

During GPU or chipset driver installations, users may accidentally skip or overlook the HD Audio driver component. AMD’s installation packages often bundle multiple drivers, and deselecting the audio driver can leave the HD Audio Function without proper software support.

Modern motherboards rely on BIOS/UEFI firmware to manage hardware components. If the onboard HD Audio controller is disabled in these settings—intentionally or by accident—the operating system won’t detect the audio device, even if drivers are correctly installed.

In rare cases, the problem may stem from hardware issues. For example, a faulty GPU or motherboard could prevent the HD Audio controller from functioning. Additionally, using third-party adapters (e.g., HDMI-to-DVI) might interfere with audio signal transmission.

Fixing the HD Audio Function problem requires a systematic approach. Follow these steps to diagnose and resolve the issue:

1. Step 1: Update AMD Drivers
   1. Visit AMD’s official support website and download the latest driver package for your GPU or chipset.
   2. Run the installer and ensure the “HD Audio Driver” option is selected during the setup process.
   3. Restart your system after installation.
2. Step 2: Reinstall the Audio Driver Manually
   1. Press Win + X and open Device Manager.
   2. Expand the Sound, video, and game controllers section.
   3. Right-click the AMD High Definition Audio Device and select Uninstall device.
   4. Check the box to delete the driver software, then restart your PC.
   5. Windows will automatically reinstall the driver upon reboot. If it doesn’t, repeat Step 1.
3. Step 3: Enable HD Audio in BIOS/UEFI
   1. Reboot your PC and enter BIOS/UEFI (usually by pressing Del, F2, or F10 during startup).
   2. Navigate to the Advanced or Integrated Peripherals tab.
   3. Ensure options like HD Audio Controller or Onboard Audio are set to Enabled.
   4. Save changes and exit.
4. Step 4: Check Windows Audio Settings
   1. Right-click the speaker icon in the taskbar and select Open Sound settings.
   2. Under Output, ensure the correct audio device (e.g., “AMD HDMI Output”) is selected.
   3. Test different audio formats (e.g., 24-bit, 48000 Hz) under Device properties to rule out compatibility issues.
5. Step 5: Test Hardware Connections
   1. Swap HDMI/DisplayPort cables or try a different port on your GPU.
   2. Connect the audio output directly to a monitor or TV to bypass adapters.
   3. If using an external speaker system, test it with another device to confirm functionality.
6. Step 6: Perform a System Restore or OS Reset
   1. If the issue persists, consider rolling back to a system restore point before the problem began.
   2. As a last resort, reset Windows to eliminate deep-seated software conflicts.

The HD Audio Function issue on AMD devices, while inconvenient, is rarely insurmountable. Most cases stem from software oversights like outdated drivers or incorrect BIOS settings, which can be resolved with careful troubleshooting. By methodically updating drivers, verifying hardware connections, and adjusting system configurations, users can restore audio functionality without needing professional assistance.

To avoid recurrence, enable automatic driver updates via AMD’s Radeon Software or Windows Update. Additionally, periodically check BIOS/UEFI settings after system upgrades to ensure all critical components remain enabled. If all else fails, reaching out to AMD Support or your hardware manufacturer can provide tailored solutions for persistent or hardware-related problems.

Note: With patience and the right approach, even the most stubborn audio issues can be silenced for good.