Random freeze of the system during gameplay

[Cyclos1969]

Hi,
I have a problem with my new system:

Cpui: AMD FX 9590 (eight processor) - socket 942
Motherboard: ASUS Pro Gaming Aura - Bios last 0501
Memory: DDR3 Corsair 1866 - 4 X 8 GB - Total 32 GB
Video: MSI Nvidia 980ti gaming - 6 GB Memory DDR5

I've problem with 2 games: GTA5 & Batman Arkham Knight. During a game the system will be freeze and I don't know exactly the problem.

What is the best bios setting for this motherboard?
What is the best video settings for Nvidia 980ti?

There is a program for identify better the component (cpu. memory, nvidia) with the problem?

Regards

Cyclops1969