Thanks for making an official guide.
I can confirm that the easiest fix to “Negative Delta Time” is running the game on just 1 core, so this fix is great.
I’m not getting any issues with negative delta time, never got any on any of my machines (both Intel and AMD CPUs). How often did you get those messages? What CPU do you have?
CPU: AuthenticAMD Unknown processor @ 30765 MHz with 2047MB RAM
This line seems weird. For some reason your chipset is not recognized. Have you downloaded drivers for that chipset?