Adventures with m920q and SFP+ networking

m920q 8500T - 100% usage with Prime95 at 6 Threads

Cat Tax!

SuperMicro AOC-STGN-I2S at idle, already over the 55C spec

SuperMicro AOC-STGN-I2S with DAC, running iperf3 to max throughput

SuperMicro AOC-STGN-I2S with RJ45 Transceivers, running iperf3 to max throughput. Card stopped functioning around the time this picture was taken.

RJ45 transceivers after I pulled them to let them cool after card stopped functioning.

Snap of the CX354A. Didn't take many pictures because Mellanox has an internal temp sensor, so I just used that. Plus most of the tests after this one had the cover on to improve airflow.

My victims. Is this a problem, or a solution?