Junction temp is the max of all sensors. The gpu will start throttling around 110c, so really that is the threshold AMD considers safe, not 90. That being said, lower temp = longer lifespan.
Im uncomfortable w/ 80c, but these guys run hot - without drastically reducing performance, or altering the cards cooling solution, it is what it is.
Thanks for the info mate. Oh wow! 110c is safe ouch! That will definitely burn out the cards very quickly.
I've literally spent the last few hours trying to make changes, trying to reduce the heat on these gpus. The best I can achieve is 88c. I can't get it lower without impacting the performance.
At the moment it's running very smoothly @ 82 Mh/s on all 4 gpus. I think that's efficient, 910 watts in total.
What miner are you running? Also, are you using Windows OS or some other mining os such as minerstat?
Hey, Nicehash Legacy v1.9.0.22 , running on Windows 10 64bit.