ASRock B650D4U freezes after GRUB menu
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=107927
Printed Date: 04 Sep 2025 at 6:46pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: ASRock B650D4U freezes after GRUB menu
Posted By: timbo707
Subject: ASRock B650D4U freezes after GRUB menu
Date Posted: 12 May 2025 at 7:43pm
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I work as a system administrator and I have several servers on the B650D4U motherboard and two of them freeze after the GRUB menu, this happens with any OS in EFI mode. The problem is not that there is no picture on the ipmi, but the problem is that the server freezes, since our company has a live cd image for diagnostics, which can be loaded via pxe and connected via ssh. When the BIOS is set to legacy, everything works, there is a picture, the live cd image for diagnostics is loaded, you can also install any OS without problems, i.e. the problem is directly in EFI mode, most likely in the video adapter when the graphical shell of the image is loaded, including Windows 2019. In Linux, I tried disabling or enabling some modules in the kernel - it also did not help, I tried vga=normal, video=vesa:off, video=efifb:off nomodeset I tried configuring iommu and gfx, also debugging via serial over lan, I used the boot parameters console=ttyS0,115200n8 console=ttyS1,115200n8 - there is no activity in serial over lan after the GRUB menu. Flashing the BIOS and BMC to the latest versions did not solve the problem, other servers with this motherboard work without problems. |
Replies:
Posted By: timbo707
Date Posted: 12 May 2025 at 7:59pm
| Server configuration: AMD Ryzen 9 9950X 4.3GHz (16 cores)/??28Gb/??x2Tb NVMe SSD |
Posted By: M440
Date Posted: 12 May 2025 at 11:54pm
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what it displays if you try to boot OS from GRUB shell (also called the GRUB rescue or command line)? if it boots the kernel what are the logs? (dmesg,journal) ------------- asrock b650m-hdv/m.2, ryzen 7700x@85watt, arch/kde |
Posted By: timbo707
Date Posted: 13 May 2025 at 2:46pm
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To find out, you need to first install the OS in EFI mode, but I can't install the OS because after the GRUB menu nothing happens, just a black screen, with any Linux OS. If you install Windows, the same thing happens, only it freezes when the graphical shell should load. The problem is not in the broken OS, but in the motherboard. |
Posted By: M440
Date Posted: 13 May 2025 at 3:27pm
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Did you see the GRUB menu in EFI mode? If so, you can access the GRUB shell (also called the GRUB rescue mode or command line) to determine where and why it fails to boot the OS. Did you see anything beyond GRUB? If so, you can check the OS kernel logs to see where and why the boot process fails. ------------- asrock b650m-hdv/m.2, ryzen 7700x@85watt, arch/kde |
Posted By: timbo707
Date Posted: 13 May 2025 at 4:14pm
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"If so, you can access the GRUB shell (also called the GRUB rescue mode or command line) to determine where and why it fails to boot the OS." The problem is not with the OS, I loaded the systemrescuecd image, edited the linux boot entry in the grub menu, added the "verbose" and "debug" parameters at the end of the line, after that I pressed the x+ctrl key combination, I don't get any information or boot logs, the screen is black. "Did you see anything beyond GRUB? If so, you can check the OS kernel logs to see where and why the boot process fails." No. The problem is not with a specific OS, the problem is in EFI mode, with it, the graphic elements do not load, the server freezes. |
Posted By: M440
Date Posted: 13 May 2025 at 10:48pm
this is just editing existing boot entries (ctrl-x), the grub shell is i believe ctrl+c this should give you an idea what to do: https://ibb.co/Z6w189MT" rel="nofollow">  https://ibb.co/3m1fHk3w" rel="nofollow"> 
have you tried accessing it from ssh or pinging? maybe it just doesnt display anything? anyway the above might tell you more ------------- asrock b650m-hdv/m.2, ryzen 7700x@85watt, arch/kde |
timbo707 wrote:Posted By: timbo707
Date Posted: 14 May 2025 at 8:08pm
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I apologize for my English, maybe you misunderstand me. I can't install the OS in EFI mode, there is no OS and there is no ssh. The problem occurs when the installation image tries to load graphics. I will now install the OS in legacy mode and then add a UEFI boot record and try to boot in EFI mode, then I will look at the logs. |