I have a Dell Latitude E6520 with 4GB RAM, I have an Nvidia 4200 video card, have a Windows 7 64 bit OS, and my game stilllllllll crashes everytime I hit new game. I have an Intel ® 2.30GHz processor as well. I have done that thing were you edit that file in the FO3 folder, where you add busamethreader=1 or something like that and the other thing your supposed to add. My computer says that FO3 should run on medium quality, but yet it wont run at all :banghead: Can someone please help me fix this...

nVIDIA hasn't produced any "4200" cards since the GF4 Ti-4200, in 2002, and if for some reason, you still had one and tried to use it, naturally, it would fail.

The only CPUs available in 2002 would similarly be unable to run this game, so either you do not know what your hardware is (I have no interest in looking up what that model number you offered means. You are the one who should have done that, already), or you need a new computer badly.

Actually the OP is correct here, it has an Nvidia 4200 quadro card. Still not really meant for games. It looks to be about as powerful as an Nvidia GT 520M from some of the specs I looked up. An i5 CPU as well.

OP: you said you added the .ini fix? Did it look like this?
Open up the .ini file located in My Documents>My Games>Fallout 3. *Do not alter the one in the actual game directory labeled Fallout_Default_ini*
In the FALLOUT.ini find the line

bUseThreadedAI=0
change the 0 to a 1

then below it add the line

iNumHWThreads=2

Also might want to post a dxdiag. But the truth is the quadro cards are made for video editing and are not made for gaming.

Ok, first off, where should I post the DxDiag because it's a lot of information that will take up pages lol. Second, I don't think that my game installed right? Because once I click the Fallout3 folder, there's only a folder named Saves, and then three files, called RendererInfo, FalloutPrefs, and FALLOUT. Maybe that's why the .ini didn't work, but I did find the correct bUseThreadedAI part, so I'm not totally sure. Thanks for the responses.

As best I recall, the 520M is no great shakes for games, even with the correct Geforce BIOS and drivers . .