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Recent spate of BSoDs with various error codes after 2 clean years
Hi folks. Until recently, I had gone approximately two years without an unexplained BSOD while using the computer in question heavily. I've now gotten 6 in the last few weeks, displaying a number of different bugcheck codes. A quick timeline:
11/30/11 - BSOD, bugcheck code 0x1000007e
11/21/11 - BSOD, bugcheck code 0x00000050
11/11/11 - BSOD, bugcheck code 0x0000003b
11/08/11 - BSOD, bugcheck code 0x0000001e
11/07/11 - BSOD x2, bugcheck codes 0x0000001e and 0x0000003b
10/02/11 - BSOD, bugcheck code 0x0000001e - First recent, unexplained BSOD
7/19/11 - BSOD, bugcheck code 0x0000003b - Occured very shortly after installing new RAM, discovered that BIOS settings had defaulted to wrong values and corrected.
10/29/09 - BSOD, bugcheck code 0x0000001e - This was my last BSOD before the ones detailed above. I have no recollection of the cause, but I was pretty pleased with the 2 year gap.
Other potentially relevant information:
As I mentioned, I added RAM in July of this year, going from 2 to 4 sticks of 2gb DDR3 running at 1333.
I had been running somewhat outdated ATI video drivers (May 2011, iirc) until I updated after the 11/11 BSOD looking for a fix. Other than that, the only software change I can think of is installing BlueScreenView, which obviously happened after the issues started.
Scans with Microsoft Security Essentials and Malwarebytes Anti-Malware have come back clean.
Memtest has been left to run overnight repeatedly, completing at least a half dozen passes without finding any errors.
I don't recall precisely what was going on at the time of each BSOD, but at least 2 of the recent ones have occured while watching Netflix streaming video, and 2 more have occured while playing games (Defense Grid and Sanctum, if it matters).
System info:
Windows 7 Home Premium x64
Shipped with Vista Home x64 in July of '09, completed "fresh install" upgrade to W7 sometime around October of '09
Processor: Phenom II x3 720
Video card: HIS Radeon HD 4850
Memory: 4x2GB DDR3 1333
Attached ZIP file contains the diagnostics requested in the sticky at the top of this forum. Thanks for your time reading this and any guidance will be very much appreciated!