There's nothing that's standing out massively for me. As above, remove everything you possibly can to remove any outliers. Even getting into windows and removing all peripherals would be useful. Safe-mode would be handy as well as then it would only be basic drivers installed. If you get success with safe mode then it can, somewhat, narrow down the hardware location. It won't be anything with a driver at least, as the basic drivers are controlled.
After that, you're looking at GPU, CPU and then Motherboard. Do you have any older GPU cards that you could try? Is there something you could borrow? Being able to rule that out at this stage would be very useful.
If its not the GPU, this is a very rare scenario that's difficult to differentiate between motherboard and CPU. The failure at this time is so miniscule that it would be impossible to know without switching them out.
After that, you're looking at GPU, CPU and then Motherboard. Do you have any older GPU cards that you could try? Is there something you could borrow? Being able to rule that out at this stage would be very useful.
If its not the GPU, this is a very rare scenario that's difficult to differentiate between motherboard and CPU. The failure at this time is so miniscule that it would be impossible to know without switching them out.