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Windows 7: Random BSODs. Tried everything I could think off.

08 Oct 2011   #1

Windows 7 Home Premium 64bit
Random BSODs. Tried everything I could think off.

Hello sevenforums,
I had many Bluescreen errors since ca. 3 months. The computer is a custom-build and has never run without any errors. The hardware is ca. 4 months old and the OS installation ca. 3 months. Right after I started the computer, my first blue screen errors appeared. I have had more than 5 different blue screen errors. I basically did everything I could think off. I reinstalled Windows 7 several times. I reinstalled drivers. I made several registry checks. After I had some hard drive issues I checked it for bad sectors and it stopped at less than 1 a half of the test and said there were found too many bad sectors. Then I returned the hard drive and got a new one which passed the test with no errors. But I still had BSODs. Than I read on some forums that cooling could have been a problem and I added a sufficient amount of cooling (check my system specs further downward for my cooling information). Even after this step I still had blue screen errors. Than I did several other checks like a memory check and a video memory check. The memory test passed but always when I started the video memory check my computer had a blue screen error or froze. I did a RMA with the video card after which the video test ran through perfectly. Than after several new random blue screen errors I had no idea what else to do and brought my computer to the Geek Squad to Best Buy. They ran a diagnosis and repaired some driver incapability issue after which they said the error was gone. The first time I started my computer after it got back from Best Buy I had a new bluescreen which was something with nvlddmkm.sys which I found out was a graphic card error. I brought it back to Best Buy because I had no idea what to do or how to fix it and they told me to get another card. After I swapped out my EVGA GTX 460 with a EVGA GTX 560 after which the nvlddmkm.sys bluescreen error was gone but I still had other bluescreen errors.

So this is my story I hope someone can help me!

System Specs:

Windows 7 Home Premium 64-bit (OEM-Version but bought from a retailer)

Processor: Intel Core i7 870 (no overclocking or anything done)
Motherboard: GA-P55A-UD3
Video Card: EVGA GTX 460 / EVGA GTX 560 (read the above text to find out why)
RAM: Corsair 8GB (i think DDR3 1333 but I'm not sure)
Hard Drive: Western Digital 1TB (64MB Cache, 6GB/s)
Cooling/Case: Antec 1200 (200mm BigBoy Fan, 5 x 120mm Fans); 2 additional 120mm Fans and the Antec Kuehler Box for my Processor)
Power Supply: Antec True Power - Blue, 750 Watts

So this is all the information that I think is important to solve this problem. I have no idea what else to do. I have attached the blue screen dumps and the perfmon reports. Many dump files are missing because I reformatted my hard drive and reinstalled Windows several times.
Hopefully someone can help me solve this problem.
I apologize for my bad english but english is not my first language which is why I may have made some mistakes.
Thanks a lot,

My System SpecsSystem Spec


 Random BSODs. Tried everything I could think off.

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