Note: Please be aware that the following guide is for regular home-built PCs. CORSAIR pre-built PCs that contain an ASUS motherboard utilize a custom BIOS which you can keep updated from our downloads page, or via the instructions on our help site.
Updating the BIOS (Basic Input/Output System) on an ASUS motherboard is a critical task that may be easily performed, even if it is your first time doing so. An outdated BIOS can cause compatibility and performance issues. For this process, you’ll require a USB flash drive that is formatted as FAT32. To check if your USB flash drive is formatted to FAT32, you may connect it to a system and check its properties via Windows Explorer.
After verifying you have a USB flash drive ready, follow the instructions below to update the BIOS on your ASUS motherboard:
3. Under “BIOS”, you’ll find a library of BIOS versions. Download the latest BIOS available for your motherboard – preferably not one that states “Beta”. If you are looking to downgrade the BIOS version in case of troubleshooting, you would opt to download a version prior to your current BIOS.
4. Extract the contents of downloaded BIOS zip folder to your USB flash drive – there are typically two files. The BIOS itself, and “BIOSRenamer”.
5. When both files are placed in your USB flash drive, run the “BIOSRenamer”. A command prompt will come up and quickly rename the BIOS file.
6. With the USB flash drive still inserted, restart your system and enter BIOS by quickly pressing the appropriate key (usually “Delete”, “F2”, “F10”) at the ASUS logo screen to enter the BIOS setup. Refer to your motherboard's manual or the initial boot screen for the correct key.
7. Navigate to the BIOS Flash Utility. Inside the BIOS setup, navigate to the section or tab that allows you to update the BIOS. You may need to enter “Advanced Mode” to access the BIOS flash utility, which may be done by pressing “F7”. Once in Advanced Mode, the utility is typically under the “Tool” tab, though this may vary between motherboard models. From there, enter the "EZ Flash” utility (again, wording may vary).
8. Select the BIOS file on the USB drive and follow the on-screen prompts to confirm and start the BIOS update. This process may take a few minutes. Do not interrupt it under any circumstances, as doing so may brick the motherboard’s functionality. Once the BIOS update is complete, your system should automatically restart.
9. You may enter the BIOS setup again and check the BIOS version to ensure it has been updated. It would also be ideal to re-enable X.M.P/D.O.C.P/E.X.P.O to ensure you’re fully utilizing your RAM’s speed capabilities. If you had custom BIOS settings, reconfigure them as needed.
10. Make sure to save any changes and exit – this is typically done via “F10”. If there are no issues – voila! You’ve successfully updated your BIOS.
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