Update BIOS motherboard ASUS Zenith Extreme x399

This time we show what to expect when updating your UEFI BIOS of your ASUS Zenith Extreme (chipset x399) – a pretty good and performance setup! Here we update the UEFI BIOS from the BIOS itself – in fact, no OS is needed! This motherboard has a built-on utility called

Asus EZ Flash 3 Utility

which is started from the BIOS and it could read your NTFS or FAT filesystem to locate the update firmware file or the easy way to get connected to the Internet, check, download and install the update if any!
So here some screenshots to how to perform the update from 1003 to 1402 – it is easy and safe just couple of reboots needed – total of 4 (but in your case may vary).

STEP 1) Press DEL or F2 to enter your UEFI BIOS

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Enter UEFI BIOS

STEP 2) By default you are in Main Menu where you can see the BIOS Version, which is 1003 x64 and Build Date – 04/16/2018.

We’ve checked in asus site and there is a firmware update, which is strongly recommended to be flushed. You can check Asus site (here is the link now – https://www.asus.com/us/Motherboards/ROG-ZENITH-EXTREME/HelpDesk_BIOS/)

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UEFI BIOS Utility – Main

STEP 3) Click on Tool and you’ll enter Tool menu where you have several options including Asus EZ Flash 3 Utility, which is the utility used to flash your BIOS.

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Tool and Asus EZ Flash 3 Utility

STEP 4) Click on “Asus EZ Flash 3 Utility” to enter the utility.

Some versions or states your computer might reboot and enter directly again in the “Asus EZ Flash 3 Utility”, do not worry it is normal.

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Asus EZ Flash 3 Utility

STEP 5) You have two options to locate the update file in your hard drives and to let the utility to connect to the Internet and check and download the firmware automatically. So clock on “via Internet” and then on the button “Next”.

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EZ Flash 3 Update

STEP 6) In most of the time you are behind router, so click on “DHCP” and then click on “Next”.

As you can see there are two other options you can use – PPPoE and Fixed IP (manual network configuration) – they are beyond the sope of this article.

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EZ Flash 3 Update – Network Connection

STEP 7) The utility found an update and offers us to download the firmware file – ROG-ZENITH-EXTREME-ASUS-1402.zip. Click “OK”.

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EZ Flash 3 Update – Latest BIOS file

STEP 8) A confirmation the download is successful and a conformation is required from the user to continue with the update process.

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EZ Flash 3 Update – Confirmation to update

STEP 9) The flush process is in progress.

Your mouse could freeze, your keyboard might not work, it is OK, do not restart just wait for the progress to turn into orange.

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EZ Flash 3 Update – Processing

STEP 10) The flush progress is around 50%.

Your mouse could freeze, your keyboard might not work, it is ok, do not restart just wait for the progress to turn into orange.

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EZ Flash 3 Update – ~50% progress

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