Tom McHowat

Tearing my hair out with nvwgf2um.dll

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Hi Guys

So I tried no less than four times to fly with the FSLabs A320 in P3D V3.4 today, and every time after about 15-20 minutes I would get a CTD with the faulting module nvwgf2um.dll.

I know this is something Nvidia related. I've tried two sets of drivers, the brand new ones (382.33) and the old faithful ones that used to work well with my GTX 970 (376.33). I uninstalled with DDU and Ccleaner etc. I can't get rid of this error. This is on a completely fresh install of Windows 10 and P3D too. I've got no tweaks in the CFG file at all. Graphics card is not overclocked.

Specs if they help:

i5 3570k at 4.7GHz

16GB RAM

2 x SSD's

GTX 970

I've done pretty much everything in the Avsim CTD guide. SFC scanner shows 100% integrity, all drivers are up to date, scanned all the disks with no errors, run memtest x86 and memory is clean, stress tested the overclock for 10 hours with no errors or temperature issues. DLL and EXE startup files are as they should be. I'm completely out of ideas and it's driving me up the wall.

Crash with 376.33 drivers:

Faulting application name: Prepar3D.exe, version: 3.4.22.19868, time stamp: 0x588f7cbf
Faulting module name: nvwgf2um.dll, version: 21.21.13.7633, time stamp: 0x584d974c
Exception code: 0xc0000005
Fault offset: 0x0082bed6
Faulting process ID: 0xf24
Faulting application start time: 0x01d2e13120622d98
Faulting application path: D:\Prepar3D v3\Prepar3D.exe
Faulting module path: C:\Windows\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_3f929cc119e3b994\nvwgf2um.dll
Report ID: 3fa30631-3a1c-4374-96c3-3eba2d008f04
Faulting package full name: 
Faulting package-relative application ID: 

Crash with 382.33 drivers:

Faulting application name: Prepar3D.exe, version: 3.4.22.19868, time stamp: 0x588f7cbf
Faulting module name: nvwgf2um.dll, version: 22.21.13.8233, time stamp: 0x591d2d0c
Exception code: 0xc0000005
Fault offset: 0x00895605
Faulting process ID: 0x7d8
Faulting application start time: 0x01d2e121e011dcb2
Faulting application path: D:\Prepar3D v3\Prepar3D.exe
Faulting module path: C:\Windows\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_7209bde3180ef5f7\nvwgf2um.dll
Report ID: 92ea8121-197d-4be5-a6d2-2cff8dba36fe
Faulting package full name: 
Faulting package-relative application ID: 

I'm all ears if anyone has any words of wisdom.

Thanks

 

Tom

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This error is most likely caused by a high overclock, cpu voltages too high or too low.  If your system is overclocked, try to go to the optimal defaults or the default setting for the BIOS.

If you are trying to overclock your GPU, remove the overclock.  GPU's should only be overclocked by the developer of the GPU or by a computer professional.

If none of the above applies, I would rename or delete your p3d.cfg and let it rebuild.  It is possible a setting is too high for your GPU to handle properly.

Best regards,

Jim

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Thanks. I've found that it ONLY occurs with the FsLabs Airbus. PMDG 777 and 747 are flawless for hours of flying, FsLabs will always crash with that error after about 20 minutes. Odd. 

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Odd.  Yes.  If it was a cause of FSL's, everyone would be reporting the same error.  I have not seen this.  It is most likely a setting in your config that triggers the error.

Best regards,

Jim

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