AMD Motherboards - Asrock X399 Fatal1ty not booting with code 7A/7b

Print Page | Close Window

Asrock X399 Fatal1ty not booting with code 7A/7b

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=18932
Printed Date: 11 Feb 2025 at 2:43am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Asrock X399 Fatal1ty not booting with code 7A/7b

Posted By: agent-orange
Subject: Asrock X399 Fatal1ty not booting with code 7A/7b
Date Posted: 25 May 2021 at 3:19am

Hi

I've installed a "new" Asrock X399 Fatal1ty into my server with a TR1920x and 16GB 2133mhz RAM. Everything worked without a problem for about a week or so but after I've done a reboot of the server, it wont start anymore.

Post code is showing 7A most of the time, sometimes it's showing 7b or 76 dont know if that's a "b" or a "6"

The manual says "Chipset initialization error. Clear CMOS or reset". It didn't work. I also tried to remove the battery. Boot with one stick of ram but same problem. Removed also every PCIe device and changed the PSU, still hangs with the same 2 post codes.

Should I try to re-flash the BIOS? BTW the latest BIOS is installed

Replies:

Posted By: agent-orange
Date Posted: 25 May 2021 at 9:29pm

Found the problem, damn CPU was the problem :-(