g-card or other issue?

[loco]

Hi guys quick question.
i have been getting random pc restarts since installing the division game,
since i installed it once my pc got up to around 84% and pc restarted.
since then i have noticed the fans on my HOF 980ti card ramping up and down all the time something it did not do before.
now i have always played tf2 game and it has never got over 42% in temp
but now my pc even restarted playing TF2.
so i did a system restore
and games seem to be running around 70% well team fortress 2 is..
and i just have a feeling something is wrong with the card
due to the fans ramping up and down constantly
i have low cpu temps there not going over 40deg under stress testing
the idle temps are 20.21.23.24
so after this restore it is still behaving the same way i have very good case cooling also. 3 120x fans front 140 rear
and H100i 240mm on top for cpu
any ideas on how to work out why my system is just rebooting itself?
or is my gcard gone faulty?

 

[ED209]

what temp is your gpu getting too?

check event viewer and see if there is anything in there that can help narrow down the issues.

do you have any overclocks in place on cpu or gpu?

 

[loco]

hi there is no overclock on my gpu
and it is running like not so demanding games at 72% when previously same games it would run a lot lower like 45-55%
not sure how to find event viewer on win 10
if you can guide me there i will take a look
thanks

 

[loco]

ok i found event viewer but what should i be looking for?
anything specific?