Power issue, not enough for 3060 GPU ?

All I’m running betterhash for RVN and have a;

RTX 3060 off a 8 pin to GPU and molex to riser GTX 1660ti off a 8 pin split to GPU and riser Rx 6600 off 8 pin split to GPU and riser

All on a Kolink 1200w PSU

It’s just on an old PC at home I get infrequent bluescreens with the video_tdr_failure pointing towards the nvidia cards. Drivers are updated and other simple fixes done.

Would it be the power options ? Are the cards not getting enough power ?

GPU-Z says that the 3060 is drawing 170w, the 1660 120w, and the 6600 is 100w (+- 5w)

Thoughts ?