Been running 4 of S 15. Two in full mode. 2 of the 16 chip temp. show 90-92 degrees. The rest between 49-80. Airtemperatur 20 degrees. It shut down at 96. Any idieas?
Possibly a couple of loose heat sinks? A couple of heat sinks out of alignment, disturbing airflow and creating dead zones of air?
Basically, have you tried looking closely at your boards to see if there is anything visibly amiss?