Hello everyone,
Firstly I would like to indicate that I am neither a PC expert, nor a V-ray expert. I have just started learning V-ray through the tutorials offered by Chaos Group.
My computer has crashed (frozen actually) several times while rendering, but it seems to be moving quite smoothly in exchange. For multiple times I thought its the model's fault, but I'm using one of their tutorials project files, and I have tried using personal models but it continues on happening. I have set a small render output set (1000x1000.) I have also attached an image with a screenshot of my hardware's performance right before the PC crashed. (Hence I have manually pushed my GPU fans to 40% performance for precaution.) My computer is only 1 month old, so I'm a little disappointed 
Computer SPECS:
WINDOWS 10 (UP TO DATE)
ASUS PRIME B350 - PLUS
AMD RYZEN 7 1700
RADEAON RX 560 SERIES 2GB
SAMSUNG SSD 860 EVO 250GB
RAM: 16GB
Would appreciate any help. Thank you very much!