X399 Taichi BIOS button
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=10884
Printed Date: 13 Sep 2025 at 6:31pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: X399 Taichi BIOS button
Posted By: Titigresse
Subject: X399 Taichi BIOS button
Date Posted: 12 Feb 2019 at 4:10pm
I notice there is a button on the left rear port and has a BIOS logo on it.
Does anyone tell me how can I use this function?
Regards,
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Replies:
Posted By: ASRock_TSD
Date Posted: 12 Feb 2019 at 5:09pm
Dear Titigresse,
Greetings, this is ASRock TSD.
To operate USB BIOS Flashback function, please follow the steps as below:
1. Download the latest BIOS file from below link
http://www.asrock.com/MB/AMD/X399%20Taichi/index.asp#BIOS
2. Copy the BIOS file to your USB flash drive. Please make sure the file system of your USB flash drive must be FAT32
3. Extract BIOS file from the zip file
4. Rename the file to creative.rom
5. Install PSU and turn it on; Do not boot the system
6. Then plug your USB drive to the USB BIOS Flashback port
7. Press the BIOS Flashback Switch for about three seconds. Then the LED starts to blink
8. Wait until the LED stops blinking, indicating that BIOS flashing has been completed
*If the LED light turns solid green, this means that the BIOS Flashback is not operating properly
For detail information, please refer to user manual page 29 from below link.
http://asrock.pc.cdn.bitgravity.com/Manual/X399%20Taichi.pdf
Thanks!
All the best,
ASRock TSD
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