Windows 10, Samsung EVO 850 crashes games to desktop.

[RedoFromStart]

Yesterday I plugged in recently bought SSD - Samsung EVO 850 - hoping it would boost loading times in games and OS.
And my Windows 10 didn't recognize new drive.
After some time I found out that I plugged it into wrong port (SATA2 instead of SATA3).
I created partition and without moving any files to my new drive i launched a game - World of Tanks.
After less than 5 minutes it crashed. It happened to me for the first time. I didn't even think that it could be caused by SSD.
After few tries to play WoT I gave up and downloaded War Thunder.
Same thing - crash to desktop. At least WT gave me a crash report, I didn't save it though, thinking it must be software.
I tried Samsung Magician. Didn't help.
So I installed Windows 10 on SSD and formated my old HDD.
OS loads in a matter of seconds, which feels great, but games still crash after ~5 minutes.
Any ideas how to fix it?

 

[Guest]

when you say crash,do you get a bsod or just hard crash

 

[RedoFromStart]

Crash to desktop -hard crash. A moment of black screen and I'm watching my desktop as if nothing has happened.
CPU and GPU temperatures are fine.
Tried to run SSD both in AHCI and IDE mode. No results. It's in AHCI mode right now.