ASUS M3A-H-HDMI User Manual
![ASUS M3A-H-HDMI Motherboard manual cover](/images/nHRNvuCrdEdFqeQuuCHAvTNh/thumbs/thumb175x175.webp)
To update the BIOS, download the latest BIOS file from the ASUS support website. Use the ASUS EZ Flash utility in the BIOS setup to load the new BIOS file from a USB drive. Follow the on-screen instructions to complete the update.
Ensure that the RAM is properly seated in the slots and is compatible with the motherboard. Check the motherboard manual for supported RAM specifications. You may also need to update the BIOS or try using different RAM slots.
To enable HDMI audio, ensure that the onboard audio is enabled in the BIOS. Install the latest audio driver from the ASUS support site. In Windows, set the HDMI output as the default playback device in the sound settings.
Check all power connections, reseat RAM and expansion cards, and clear the CMOS. Ensure that the CPU is correctly installed and that there are no bent pins. Listen for beep codes, which can indicate the nature of the problem.
Enter the BIOS setup and navigate to the Advanced tab. Find the CPU Configuration section and enable the 'Secure Virtual Machine Mode' or 'AMD-V' option. Save changes and exit the BIOS.
Ensure that the CPU cooler is properly installed and the thermal paste is applied correctly. Check for proper airflow in the case and clean any dust from fans and heatsinks. Consider adding additional case fans.
Enter the BIOS setup and select the 'Load Setup Defaults' option, usually found under the Exit tab. Alternatively, you can clear the CMOS by removing the battery or using the jumper on the motherboard.
Power off the system and unplug all cables. Remove the cooler and unlock the CPU socket lever. Carefully remove the old CPU and install the new one, aligning the notches. Lock the lever and reattach the cooler. Apply thermal paste if necessary.
Visit the ASUS support website for the M3A-H-HDMI motherboard and check the CPU support list. Ensure that your BIOS version is compatible with the CPU you intend to use.
Verify all power connections and components are properly seated. Disconnect any unnecessary peripherals and try booting with minimal hardware. Check for beep codes or LED indicators that might suggest the source of the problem.