Problem with nvlddmkm.sys

Go to NVIDIA forum, there is a section for this problem. They should be able to help you.

I asked for my problem but nobody answer me

I had the same problem, 3-4 months ago. I this would happened when my graphic card overheats. Since than I use lower setting for games, and no more BSOD for me. And this is just one of the reasons for nvlddmkm.sys error. From my investigation there are many more possibilities.

Also check this out, may help:

The nvlddmkm error - What is it? - NVIDIA Forums

I saw the link but i don't understand why in xp works all,vista works sli but no game and 7 nothing.
Now i want to try to put the two cards with a pc of my friend because he has mobo and ram different.

Up guys.

Another up guys.