As I read in the Apple website (and The cMP manual) the SMC resets just by unpluging the mac power cord for 15 seconds. That means that everytime you perform a hardware change (when you unplug the mac) the SMC resets.I you want to fix that by “reset”. You need SMC reset, but not PRAM reset.
In my own experience, the success rate is lower than 50%. You may need to try that a few times.
I will try tomorrow and see if it works. By the way, I tried the luxmark test and it works, a few seconds after exiting the app, the fans behave normal.
Thank you guys for your knowledge