AMD Motherboards - B4 error while only restarting the system

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B4 error while only restarting the system

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=93962
Printed Date: 19 Jul 2025 at 7:34am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: B4 error while only restarting the system

Posted By: Ankka5
Subject: B4 error while only restarting the system
Date Posted: 31 Jan 2025 at 7:47pm

- MB: Asrock phantom gaming x870e nova wifi, CPU: Ryzen 7 9800x3d, RAM: 64gb ddr5 6000mhz 30cl

So I have this annoying problem on brand new pc: when trying to restart my system, it gets stuck every time on b4 error code with MB logo on screen. Usually it gets to A0 and after while turns to b4. Sleep mode and normal boot works fine.

I have now tried:

- Taking off all usb devices on the outside and on the inside (keyboard, mouse, internal usb 3.0 header...)

- Only using one ram on different slots.

- EXPO on and off.

- Sfc /scannow, chddsk, dism /cleanup.

- Updating bios and drivers.

- Windows ram tester: OK