I am ivano (and sorry for my english).
It's a few days that known computer problems, probably due to the video card driver. I have the SAPPHIRE DUAL-X R7 265 2GB GDDR5.
I say "probably" because when I use software that make use of the video card, noted an increase in the cpu fan speed (I have the AMD FX-8320).
I also had the crash with Windows BSOD screen.
This the result of the last crash:
1) SYSTEM_THREAD_EXCEPTION_NOT_HANDLED with driver atikmdag.sys
2) DRIVER_POWER_STATE_FAILURE with driver hal.dll and ntoskrnl.exe
Now i have istalled the last driver amd with version 14.502.1014.1001 but i tried all those available, unistalling and reinstalling more than once.
The problems remain... Cpu fan speed increases and the PC freezes. I precise that the PC is new, it is assembled and has a few months of life.
I noticed something else: when driver amd are istalled, in the command prompt read the message "[0x7FFB10DE18E0] ANOMALY: meaningless REX prefix used".
What is your opinion? Some incompatibility?
Ahh I have Windows 8.1 x64.
I hope someone solve this problem.
Thank you very much,