What Bios Update Do I Need?

First, head to the motherboard manufacturer's website and find the Downloads or Support page for your specific model of motherboard. You should see a list of available BIOS versions, along with any changes/bug fixes in each and the dates they were released. Download the version to which you want to update.

How do I know if I need to update BIOS?

Some will check if an update is available, others will just show you the current firmware version of your present BIOS. In that case, you can go to the downloads and support page for your motherboard model and see if a firmware update file that's newer than your currently installed one is available.

Which version of BIOS do I need?

Click on Start, choose Run and type in msinfo32. This will bring up the Windows System information dialog box. In the System Summary section, you should see an item called BIOS Version/Date. Now you know the current version of your BIOS.