Hello, I bought a new GPU, HD6950, a few days ago. After that games have started to crash and I have begun to receive more and more BSODs while gaming. Via BlueScreenView I investigated that this could be "atikmdag.sys" related problem so I completely removed all the ATI related video drivers and installed the latest ones (11.7a). After that the next two BSODs were only "ntoskrnl.exe" related so I thought I had solved part of the problem. But while testing Black Ops multiplayer this morning I encountered with a BSOD that could have been related to "atikmdag.sys" once again. I did receive BSODs with my old GPU (HD4890) in Bad Company 2 after an hour of gaming.
Another thing to notice is that a week or so ago I bought an SSD, and cloned my system to that.
I have tried several things, ran memtest without errors, sfc /scannow finds problems every time I run it, tried to repair windows files via "upgrade windows 7", but it wouldn't start because of some components wouldn't work after the upgrade... The Compatibility report:
The following issues are preventing Windows from upgrading. Cancel the upgrade, complete each task, and then restart the upgrade to continue.
Your current version of Windows is more recent than the version you are trying to upgrade to. Windows cannot complete the upgrade.
Upgrading Windows will affect the following devices and/or programs:
These devices might not work properly after the upgrade. Before upgrading, we recommend updating the drivers for these devices. Cancel the upgrade, open Control Panel and search for "update device drivers", or go to the device manufacturer's website to search for updated drivers.
Universal Serial Bus controllers: TI Educational Handheld Device
Storage controllers: AQ74RKHT IDE Controller
These programs might not work properly after the upgrade. We recommend uninstalling these programs before upgrading. Cancel the upgrade, open Control Panel, and search for "uninstall a program". (Note: Programs marked as * can be safely reinstalled after the upgrade.)
ATI CATALYST Install Manager *
ATI Catalyst Control Center *
Also as a notice, I had SP1 Beta installed and I think I installed the final release over it without first uninstalling the Beta. Now it won't allow me to uninstall the SP1 update package and I have the watermark "Evaluation copy. Build 7601."
I've got a feeling that the instability of my system is a sum of many and I can see how I may have to do a Clean install of Windows 7. Memory may not be the problem, but what about my PSU? Any help would be appreciated!
Windows 7 Home Premium SP1
OS is about 2 years old
Full retail version.