AMD Phenom II x4 965 3.4 GHz (Standard Clock) CPU
4 GB Mushkin Silverline RAM
Corsair TX 750W PSU
HIS AMD hd 6870 GPU
Windows 7 64-bit
Home-built, approx. 2 years old
For about as long as I've had this machine, games (Dragon Age, Crysis, Skyrim, LA Noire, RAGE, Portal, Guild Wars 2) all freeze up and crash to desktop. This can happen fairly often (within 5 minutes of launching a game) or somewhat rarely (hours pass with no issues). The video will hang for a few seconds with audio still playing, and the screen will go black. At this point, the video either rehooks or the game crashes and I receive the error "Display driver amdkmdap stopped responding and has successfully recovered." I recall the same error message, but with an ATI driver when this first started. Very seldom, I'll get the same error while simply watching a YouTube video. I have tried every fix that I can think of, and have read through many similar threads - from what I gather, this error is caused by a number of things and can be difficult to pin down. It should be noted that I have never managed to get a clean install of my Catalyst drivers. I always come up with "Installation successful, but some warnings have occurred..." or something of that ilk. Reading through the installation summary provides no such warnings.
What I have tried:
Uninstalled (driver sweeper) and reinstalled all AMD drivers
Disabled flash hardware acceleration
Replaced the GPU
Overclocked and underclocked both GPU and CPU
Updated the BIOS
Reseated all cable connections from PSU
Overnight memtest on RAM
Likely countless other things that escape me
GPU, CPU, board temps all appear stable
I have a strong suspicion that the display driver install must be conflicting with some other driver on my system, but I have no ideas on how I would go about finding this. The only other possible solutions in my mind are a complete reinstall of Windows 7, or RMAing the PSU (I don't really care for either of those ideas).
I'm open to all suggestions. Please let me know if I can provide more information.