My new PC is randomly freezing

[erebusedits]

I recently bought a new PC, at the start everything was ok. Some days later i found out that if i play more than half an hour overwatch my pc crashes. As a crash feedback it says rendering device stopped. So I installed old stable RTX drivers and after that the in game crashes fixed, BUT then randomly, even when i have only spotify running the image and the audio freezes for like 2 seconds and then comes back. Sometimes its one time and then its gone, other times its happening consistently and then blue screens (it happend 3 times so far). If everyone knows what i can do to fix this and get rid of this trouble please answer me.
My PC if it helps you to something (everything except GPU is up to date) : 
Operating System : Windows 10 Pro 64-bit
Processor : AMD Ryzen 7 2700X @ 3,7 GHz
Graphics : MSI Ventus RTX 2080 8GB
Rams : G.Skill RipjawsV 16GB (2x8) 3200MHz
Motherboard : Gigabyte X470 Aorus Ultra
Power Supply : CoolerMaster V750
Case : Zalman Z3 Plus
Ssd : Samsung 970 Evo 250GB

[HypedKid]

I guess the drivers still have some problems, well my pc also freezes sometimes, so I updated my amd gpu drivers and got other problem, my GPU fans speeds were crazy and unstable so I reinstalled the old one with freezing issue, now I'm waiting for a perfect one...