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d3d9.dll causing big trouble

d3d9.dll crash d3d9 videocard

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(Sorry for mistakes, english is not my native language)


Hi there,


I figured out that the following issues are caused by the d3d9.dll that comes with mods like ENB or Enhanced Skies.


To help improve fixing this problem, here's my system:


Acer Aspire 5750g (Notebook)

Intel Core i5-2430M 2.40GHz

8.00GB RAM

Intel HD Graphics Family (Integrated)

NVIDIA GeForce GT 540M


Windows 7 Ultimate - 64bit


My Fallout 3 Version:


Fallout 3 - Game of the Year Edition - German

Patched to 1.7


Clean version, no mods.



So here's the problem:


When I start the game using the fallout launcher or the mod manager launcher everything is perfect. In the game settings my NVIDIA videocard is always selected (and i cannot change it, which i like, so it always uses the good videocard)


But as soon as I install mods like ENB or Enhanced skies (which i really want to play with) those launchers automatically select the crappy integrated Intel videocard which is absolutely useless to play games with.

And even if I try to start the game with the Intel videocard just to look if the mod is working, it crashes as soon as i load the game.


I realized that the d3d9.dll is causing these issues beacuse if i delete this file the game launchers select my NVIDIA card again, just like before, and everything works - except the mod of course which obviously needs the d3d9.dll.


I have no idea why it has to be like this. It's f**kin annoying.


Well i tried to deactivate the integrated Intel videocard, so that my notebook only uses the nvidia, but that ended up in my notebook not "turning on" the display at all.


I also tried to force run the game with the nvidia card, but this doesn't work either.


I hope those information are good enough to help me solve this problem.


Thanks in advance







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 Possible similar-issue

 Possible answer



Some suggest to copy that d3d9.dll from the windows/system32 folder to your FO3 GOTY folder.


Check the interwebs about steps to MAKE SURE INTERGRATED GRAPHICS are OFF. Very impotant for any game/system stability.


 Complete FO3 GOTY install-guide





Edited by danielcook, 07 December 2013 - 03:04 PM.




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thanks but no.


spent the whole freakin day tryin to solve this crap... NOTHING


i guess i'm just not able to enjoy a beautiful version of fallout then.


thanks anyway im giving up

Also tagged with one or more of these keywords: d3d9.dll, crash, d3d9, videocard

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