Specs are in my sig below... running vista ultimate x64

I started out with the 174.93 drivers. Got about 20 mins into the game and it would crash nvlkddm.dll (i think thats it) and blue screen.

Tried the 174.74 and had the same issue. I'm not back to 169.25 and I thought that fixed it. I got to play another hour in or so and had the same issue. The screen goes nutty, like artifacts all over -- blue artifacts. Then the monitor loses signal and either it sits like that or I get the previously mentioned BSOD.

I used driver cleaner in between driver installs, and this is pretty fresh install of vista. It doesn't do this with ANY other game. COD4, Supreme Commander, Crysis. All run great.

Ideas?
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How hot is your card getting? No crashes for me.
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Are you overclocking your card? Do you have a rated PSU for your card? Do you good cooling on your card? Check these. If nothing works maybe try a different copy of the game.
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I reduced my memory oc and it hasnt crashed since. AC cycles a lot through the mem and if youre pushing it too much youll get crashes.
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Its factory OC'd... nothing past that. Card is definatley not getting hot. I have the thermaltake orbs on both of them.
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assassins creed crashes sometimes for me for reasons unknown.. not your crash though, i think it may just be a buggy game, not crysis 'im crying cas its too advanced' buggy, normal plain, shitty progrramming buggy.. excellent game though i just finished it ;)

Crysis has never crashed in my 100s of hours of playing = not buggy FTW :p
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Its the truth man! I can have a 3 hour game of sup comm. Play 3 hours of crysis... no crashes. 30 mins of assassins creed = boom :mad:
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Its factory OC'd... nothing past that. Card is definatley not getting hot. I have the thermaltake orbs on both of them.

Doesn't matter, pull back the mem speeds and see what happens.
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Took the clock speed (just to be "safe") and the memory speed down 25 and 50mhz respectively, still same issue.

I think its safe to say assassins creed needs a patch and bad!
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Took the clock speed (just to be "safe") and the memory speed down 25 and 50mhz respectively, still same issue.

I think its safe to say assassins creed needs a patch and bad!


I think its something to do with your machine as it runs great on my 8800 GTS (174.74 drivers) with no lockups. I'm using Vista 32bit btw.

This game is very intensive at times and will push a decent system.
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you're not by any chance running the leaked version are you? I know I had a lot of crashes with that one. With the retail version, I think I got a couple crashes, but turning my fan speed up to 100% fixed those.
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My bro got this game a couple days ago, and it does crash after a while for reasons yet unknown. Playing in windowed mode supposedly helps. I'm highly inclined to believe that its a problem with the game, not our hardware. :D
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He lists system tweaks/card tweaks to make sure your system is stable enough to know if it's the game/driver version causing the problems, Assassin's Creed Tweak Guide (http://www.tweakguides.com/AC_1.html).
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Took the clock speed (just to be "safe") and the memory speed down 25 and 50mhz respectively, still same issue.

I think its safe to say assassins creed needs a patch and bad!

Hmm. Well that sucks. The game does need patched, but the mem drop did the trick for me (so far, at least).
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