Restart while gaming

thanoscharade

Prominent
Aug 21, 2017
3
0
510
Hello guys,
first of all im really sorry for my bad english
so like 10 days ago upgraded my gpu from strix rx 460 4gb to evga 1070 ftw 8gb
since then i tried to play ''ark survival evolved'' the first time took 30 minutes to restart after that, starts normally untill menu then do the loading and the moment i join into the game the screen turns black and the pc restarts. with lower resolution and setings it last longer but eventually restart again. same thing happend to witcher at ultra settings played like 10-30 minutes and then restart.
games which are less demanding cause no problems no matter how many hours i will play.

things i have tried,
delete the game and re-install
delete gpu drivers and re install
older gpu drivers
its not temprature issue the pc is clean with fresh thermal paste and runs cold

my spec are those
ryzen 5 1600
asrock ab350m pro4
16gb gskill ram ripjawns at 3200mhz
and 650watt evga supernova g3 its tier 1 psu and only 1 year old 650w are more than enought cause my system requires like 400watt max and also friends of mine have some specs with 550watt.

do you have any thoughts? tommorow i will try to take off RAM and change slots in mobo also check dimms one by one.