I am doing different things in game each time, but it happens about every hour.
Any clues from the log file?
[2.0.43] Crash 1/hr (GraphicsInterface::bindBindings)
Re: [2.0.43] Crash 1/hr (GraphicsInterface::bindBindings)
Looks like a hardware problem, update your bios to the latest version. If you find a way to reliably reproduce it, let us know.
Re: [2.0.43] Crash 1/hr (GraphicsInterface::bindBindings)
Updated BIOS, updated gfx drivers, still getting crashes; some more logs:
Re: [2.0.43] Crash 1/hr (GraphicsInterface::bindBindings)
Those crashes are random, so this is definitely a hardware problem. If you are on the latest bios and still have issues I'd rma the cpu.