How to update the BIOS in ASUS Motherboard PCs

How to update the BIOS in ASUS Motherboard PCs

With the Spectre and Meltdown issue affecting virtually every Intel, AMD and ARM based motherboards out there, users are worried over the security of their computers. Microsoft is rolling out updates to fix the issue, but that alone won’t do it. You also need to download the latest BIOS update for your PC or laptop’s motherboard.

How to update the BIOS in ASUS Motherboard PCs

Today, we are going to tell you how to update the BIOS on ASUS Motherboards which use UEFI. For this you are going to need a USB Flash Drive (Memory Stick or Pen Drive or Thumb Drive). It is worth mentioning that this guide is for those with the EZFlash 3 tool (pictured below in Step 10).

Disclaimer: Geekiest.net and the author are not responsible for any damage you may incur. Proceed at your own risk. Also, the update has not been officially announced to fix the vulnerabilities. This is just an example on how to update the BIOS, and not about how to update the Intel Microcode.

How to update the BIOS in ASUS Motherboard PCs

1. Go to the ASUS Download Center website.

2. Enter the model name of your motherboard in the search box. If you are not sure which motherboard you have, you can download the portable version of CPU-Z for free, and run it. This will display the name in the Mainboard tab, like so.

CPU Z BIOS Version

NOTE: Please download the BIOS for your own motherboard. If you flash an incorrect one, you could brick the PC.

For example: I have a ROG STRIX H270F GAMING motherboard. So that’s what I am going to search for.

searching for motherboard version ASUS

3. Click on the Driver and Utility option, and scroll down and select the BIOS option on the left sidebar.

searching for motherboard version ASUS 2

4. You will see the available BIOS update. Currently my BIOS is the 0809 version, and the available update is for the 1002 version. Click on the download button, and save the ZIP archive to your computer.

downloading the BIOS for ASUS motherboard

5. This archive contains a CAP file, which you need to extract. Copy the file and paste it on to your USB Flash Drive’s main folder.

BIOS Update for ASUS motherboard

6. Leave the USB drive connected to the PC and shut down the computer.

BIOS Update for ASUS motherboard USB

7. Turn on the PC and when you see the ASUS logo on the screen, you will see a sentence prompting you to press the F2 or Delete key to enter the BIOS. Do so.

8. On the BIOS screen, you will see a lot of information about your PC’s hardware. This will include the current version of your Motherboard’s firmware, aka the BIOS.

9. Click on the Advanced Mode on the bottom, and click on the Tool tab, and select the EZFlash Utility.

BIOS Update for ASUS motherboard advanced mode

BIOS Update for ASUS motherboard USB EZFlash 3 select

10. Now, select the USB drive option. On the next screen, pick the drive from the side bar and you will see the CAP file which you stored on it. Click on the file.

BIOS Update for ASUS motherboard USB EZFlash 3

BIOS Update for ASUS motherboard select USB

BIOS Update for ASUS motherboard USB select CAP file

11. The tool will prompt you, asking whether you want to read the file and then another prompt about flashing the update. Click on yes, and the flashing process will begin.

BIOS Update for ASUS motherboard USB read

BIOS Update for ASUS motherboard USB flash

12. Wait for the progress bar to fill out, and a message will appear which says Flashing Successful.

Flashing the BIOS Update for ASUS motherboard USB

The computer should now restart and boot in to Windows. Congratulations, you have updated your PC’s BIOS.