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If your computer came with a motherboard disc the sound drivers could be on it you might have to uninstall then reinstall both the sound drivers and the sound card make sure you have both of these devices backed up to a disc before uninstalling a yellow? Question mark means you need to install/update driver to do this right click to install driver also click start control panel administrive tools computer management device manager scroll to sound,video and game controllers you might see a yellow question mark? Right click to reinstall drivers click start control panel sounds and audio,volume,advanced,speakers select appropriate speakers also audio you will find 3 drop down lists make sure you have made the correct adjustments there click start control panel sounds and audio devices you can adjust the volume there also select speaker volume you can make adjustments there you can also tick in the box place icon in taskbar hope this helps Posted on Jan 24, 2011.
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Fix common Biostar BIOS / Motherboard driver problems using these step by step instructions. Biostar BIOS / Motherboard Drivers Download. You can click the Update Drivers button at the bottom to automatically download and install the correct version of all the drivers that are missing or out-of-date on your system. Option 2: Update.