Hp 440 G9 DMA Protection Error Update

[Blue-IT]

This is kind of an update to some previous posts about the HP DMA crash error

To provide some context, we had about 80 HP 440 G9 laptops that has this DMA crashing issue. We first started seeing this issue back in January 2025. We made sure to use that HP support assistant tool to keep all the drivers up to date but that did not change anything. I think we also tried doing a fresh install of Windows 10/11 but the issue kept happening.

Anyway, looks like the Driver Version 6001.15.155.0 of the Realtek RTL8852BE WiFi 6 802.11ax PCIe Adapter was causing this issue. Someone did mention in these forums to update to version 156. Here is the link to the update from the Microsoft Catalogue: https://catalog.update.microsoft.com/Search.aspx?q=rtl8852BE-vs

In my testing, after I installed driver version 156 of Realtek wifi adapter, I have not seen the DMA crash at all. Looks like the version 155 was causing the crash (rolling back to version 152 also fixed the issue but that is not a long term solution).

Something to note, looks like there was a even newer wifi driver update from the HP support assistant. That newer driver version is 158. (The full driver version is 6001.15.158.601) I tested it on one of the G9s last week. Still did not see it crash but I think I should test it more.

So, did that fix the issue? I think so? Just want to see if anyone found a similar or different solution. Not sure if HP ever gave an official answer to this DMA issue. Hopefully an HP Representative will see this to let us know if the issue was officially resolved because I do not want to send our G9's back into the device pool for them to crash again. We just replaced them 😞

[Vjx]

Hello Blue-IT ,

Thank you for reaching out. Regarding your query on multiple HP EliteBook's shutting down when on battery power that you’re experiencing.

Appreciate you trying out exhaustive troubleshooting !!!

Kindly review the instructions as below :

-were there any hardware or software changes recently 

- share more details of the product like serial product numbers or complete model name

- We at HP do not encourage using 3rd party accessories or devices , hardware upgrades unless advised in any form of hp documentation

- Find all relevant guides and drivers from the support page here on best effort basis with the limited details that we have about the device  -

https://support.hp.com/in-en/drivers/hp-probook-440-14-inch-g9-notebook-pc/2101000453

https://support.hp.com/us-en/document/ish_5999031-5999203-16

https://support.hp.com/za-en/document/ish_4511095-4511141-16

sfc /scannow is a command-line utility in Windows that scans for and repairs corrupted or missing protected system files.

Try these steps:

Update Drivers:

• Ensure all drivers are up-to-date. You can use HP Support Assistant to check for updates, which may help resolve driver-related issues.
• Download HP Support Assistant from HP's official site or check if it is pre-installed on your laptop.

Disable Driver Verifier:

• If the Driver Verifier tool is enabled, it might be causing the crash. You can disable it using Command Prompt:
  • Press Windows + X and select Command Prompt (Admin) or Windows PowerShell (Admin).
  • Type verifier /reset and press Enter.

Check for Windows Updates:

• Ensure your Windows operating system is updated to the latest version, as updates often contain fixes for various issues.

Uninstall Recent Software:

• If this issue started after installing new software, try uninstalling it to see if that resolves the problem.

Run Hardware Diagnostics:

• Use the built-in hardware diagnostics tool to check for any hardware issues. Restart your laptop, and quickly press Esc to enter the Startup Menu, followed by pressing F2 for diagnostics.

Safe Mode:

• Boot into Safe Mode to see if the issue persists. This environment runs only essential system processes.

System Restore:

• If possible, perform a system restore to a point before the issue began.

This will help us narrow down the cause and suggest the best fix