Support Request: NVPCF (ACPI\\NVDA0820) Code 31 / CM_PROB_FAILED_ADD on Dell G15 5520 (Windows 11)

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I'd recommend using our SupportAssist App to update all drivers on a system. Sounds like you already got everything up to date, but this should help get any other miscellaneous drivers you may be missing. When it comes to GPU drivers, our support site is typically a few versions behind the latest available ones from the GPU OEM. You may have already used this GPU driver from our site:

https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=ycgvm&oscode=w2021&productcode=g-series-15-5520-laptop

If this is the one having issues, then I'd recommend getting the latest driver from Nvidia directly:

https://www.nvidia.com/en-us/drivers/details/263200/

The main reason our support site GPU versions are typically a bit outdated would be due to the other OEMs having frequent updates. If still unresolved, then I'd create a case with our support teams via the Get Help Now button so that they can look into the issue further with you. 

Hi @DELL-Daniel V, thanks for the response.

First, I should mention that my Dell support coverage has ended, so I cannot use the “Get Help Now” option to open a technical case tied to my Service Tag. Therefore, I am reaching out to the community to investigate and resolve this issue.

Regarding your driver suggestions, I want to clarify that this NVPCF behavior has been present for over a year and is not limited to a specific driver package. I observed it while using the official Dell GPU driver from the support site, and the issue persisted after switching to NVIDIA’s own releases. I also updated all components via SupportAssist, but the NVPCF device still fails to start.

To provide the technical details: on my Dell G15 5520 (running Windows 11 Pro 25H2, build 26200), the “NVIDIA Platform Controllers and Framework” (NVPCF) consistently fails to start, displaying a Code 31 error in Device Manager. The hardware ID is ACPI\NVDA0820, appearing as ROOT\UNNAMED_DEVICE\0001. The driver installation completes successfully, but the device does not initialize. I checked the SetupAPI.dev.log and found that the failure maps to CM_PROB_FAILED_ADD (0x1f) with problem status 0xC0000001. I have the relevant log excerpts and screenshots available and can share them upon request.

Given that this occurs across different driver sources, I am looking for a definitive troubleshooting path. If there are any known compatibility factors, firmware dependencies, or specific installation sequences beyond standard updates, I would appreciate your guidance.

Best regards,
Rıfat

@rftsngl​ 

If you don’t use features that depend on NVPCF (e.g., certain NVIDIA power/boost coordination features), the laptop can otherwise work fine even if NVPCF is Code 31. That said, it might disable things like Dynamic Boost/Whisper Mode on some systems, so fixing it is still worthwhile.

I would start looking into backing up any data you may need and reinstall Windows. This will  give you a baseline to work from. If you're still having the same issues with the driver, then its possible it could be a hardware issue. I'd also recommend taking your troubleshooting and sharing it with an AI assistance like CoPilot or ChatGPT. They do sometimes provide some pretty good troubleshooting. 

You could also try loading the BIOS defaults and running the preboot diagnostic to see if that finds any issues:

1. Shutdown the unit
   
2. Hold down the Fn key and the power button together
   
3. The quick test should automatically start
   
4. Make note of any error and validation codes

If you get a firm error for something, then at the least you would know that some hardware may have been at fault. Should it pass, then I'd continue down software. 

Hi @DELL-Daniel V, thanks for the response.