nvlddmkm.sys STOP: 0x00000050 BSOD following me to the darkest ends of the earth, I need help!
My problem seems to be quite unsolvable, and no one seems to be able to give me a strait answer. Hopefully someone here has had the same problem I've been struggling for months with.
My home built computer has been problem free for a couple of years until now. I have an nvidia 9400GT video card and nForce 940 SLI chipset with 4GB SLI ready RAM, and an AMD 64 Athlon X2 6000+ CPU.
It started with windows XP, the infamous blue screen of death pointing to various nvidia drivers each time. A few months ago I upgraded to windows 7 64 bit, and a new hard drive. Upon installation, windows installed the drivers for my nvidia 9400GT video card by itself. A few months later I randomly got my first windows 7 blue screen error saying, STOP: 0x00000050 page fault in nonpaged area, and pointing to a file called nvlddmkm.sys. The same type of blue screen I was getting with windows xp. This led me to believe I had a memory leak. I ran tests, I FOUND NOTHING wrong with the memory!! AAHHH!!! These crashes seem random, and only happen maybe twice a month or less.
I have done weeks of research and tried almost everything suggested for this problem, I've tried:
-diskcheck on all drives.
-windows memory diagnostic 2 times, along with memtest86 with no problems listed.
- uninstalled all anti virus and gone with microsoft security essentials.
-updated video drivers.
-and I have stopped all start-up programs and disabled all non-Microsoft services.
-I also disabled any bios caching-shadowing.
-all fans are functioning, nothing is overheating.
The file responsible according to the blue screen was nvlddmkm.sys, an nvidia windows kernel mode driver version 196.21.
If anyone can help I would really appreciate it. I'm almost to the point of junking my home made computer.