It's not the errors you are looking for.
What were the CPU and GPU temps?
Your CPU temp should have stayed below about 70 and GPU 85.
You +12, and +5 and + 3.3V Voltages should have stayed within 5%.
If they did then I'd run DDU.
To run in safe mode you generally hit f8 while it's booting.....a screen will come up and let you pick safe mode.
The next time you boot....if you don't hit F8 it should boot normally.
You can also try to just update the driver to the latest and not run DDU.
This is not "quite as good" in my opinion because you could still have old corrupted driver files screwing you up.