HP 450 G9 Error DMA Protection

[Dans-IT]

I have had trouble getting a blue screen with driver verifier enabled. Check out this link and maybe you can test as well? Running driver verifier overloads the drivers in order to trigger a bluescreen. It also gives a more detailed report as to which driver is causing the issue.

https://answers.microsoft.com/en-us/windows/forum/all/driver-verifier-tracking-down-a-mis-behaving/f...

[GandalfDaGrey]

I am waiting to receive a 450 G9 that is having the blue screen. I have several G10s at the moment but they are not having an issue with the BSOD...yet.

[adderrrr]

Сначала проблема наблюдалась только на HP450 G9, 
но потом появились случаи и на HP450 G10. 
На всех ноутбуках Win10 Pro. 
Я не хотел ловить плохой драйвер, 
а просто отключил защиту DMA в Bios, 
а также очень важно 
отключить галочки Virtualization в Bios. 
После этого все стало нормально. 
Но на модели HP250 G10 в Bios таких опций нет, 
поэтому проблема все еще актуальна и как ее решить я пока не знаю

[Dans-IT]

Hi Adderrrr,

I don't think the solution is to turn off useful system checks in your bios. This should be something that can be fixed without disabling this as it's pretty useful for preventing something malicious from accessing your memory directly.

[JWV6]

Did anyone figure this out? All of my 450 G9 are popping up with this error now.

Dans-IT - I tried your method, but it did not give me an error code when the blue screen came up except DRIVER_VERIFIER_DMA_VIOLATION.

[STIT]

I have 33 G9s, a handful are having issues but the number seems to grow daily. I have one in my hands finally that had two BSODs on the 28th (took a couple of days to ship to me). I have had it on all day without any issues, other users are still reporting issues. The BSOD is fairly generic with a stop code of DRIVER_VERIFIER_DMA_VIOLATION and not much in the dump file, unless I am not reading it correctly. I used the Driver Verifier and it consistently gives me a BSOD but it is the same generic stop code. I originally thought it was BIOS update based off dates but this one hadn't updated to 1.13 yet (it was on 1.12) so this shot that. Looking at driver updates it did a Realtek Semiconductor Corp. - Net - 6001.15.155.1 on 01/23/2025 and Intel Corporation - Extension - 32.0.101.6314 on 01/22/2025, neither of these seem to coincide with the BSODs 01/28/2025 but not ruling them out. Where is everyone on this? 

All the laptops are HP ProBook 450 G9 with I-7 processors and 16GB of memory.

[STIT]

Forgot to add, I chatted with HP and all they could offer was to shut off DMA in the BIOS which I did and still getting failures with Driver Verifier.

[Greg6151]

In Bios, in addition to unchecking DMA, 
you also need to uncheck two Virtualization boxes.
 They are nearby. Then everything will work well. 
I haven't had BSOD or DMA errors for a long time now.

[STIT]

@Greg6151 Just so that I fully understand, did you test any drivers after unchecking these? The laptop I have in my possession has not BSOD or given any DMA errors while I have had it, it did BSOD twice before receiving it, but when I run the driver verifier it does BSOD with a rather generic error.

[Greg6151]

On all my HP 450 G9, G10 laptops, when an error related to DMA appears, or when a BSOD related to DMA appears, I simply disable three checkboxes in Bios (one checkbox is DMA protection and two checkboxes are Virtualization). After that, everything works very well and there are no more errors. I did not check the drivers, since everything works well anyway. I have Windows 10 pro. All drivers are updated through the HP utility. But in the HP250G10 there is no way to disable DMA in Bios, so the problem is relevant on it and I do not know how to solve it