PC Instability - Help

[Joshyjames]

My Specs: Ryzen 5 2600x

G.SKILL Ripjaws V Series 16GB (2 x 8GB) DDR4 3200 Memory

Gigabyte x470 Aorus Gaming Ultra Motherboard

Gigabyte 1060 Windforce OC 3GB
 

My problem is that when I'm streaming, using OBS, I've had various crashes and it's taken to a boot drive failure several times with various different settings, which I'll list below. Note: Streaming at 900p 60fps 

CPU @ 4 GHz RAM @ 3200 MHz - CPU @ 3.95 GHz RAM @ 3200 MHZ - CPU @ 3.95 GHz RAM @ 3000 MHz Note: This is with my encoding settings using x264 and recording while streaming. In any of these scenarios max CPU usage is ~70% and max temps are ~68°C

Right Now I'm using 3.85 GHz and 3000 MHz and it seems to be working although I switched to NVENC H.264 for encoding my stream and stopped recording while streaming. 

I have tried XFR2 and it doesn't seem to crash at all although the temps go up to ~84°C then the CPU slows down to ~3.3 GHz to cool down and I'm not sure if that would be hurting my performance at all.

Based on these results I'd just like to get an opinion on what my best option is for the settings I should run.