Hi alxlwson,
thank you for your reply.
Probably add a heatsink don't solve the problem.
Samsung 950 Pro M.2 Additional Cooling Testing
in this article affirm that to add a more airflow is much better then add a heatsink.
what do you think about this additional fan...
I would like to mount these small heatsinks :
Mudder 8 Pieces Black Aluminium Heatsink Cooling Radiator Kit for Raspberry Pi 3 , 2 Pi , Pi Model B +
https://www.amazon.it/gp/product/B01GE7Q060/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
on a this disk:
ssd samsung m.2 : Samsung SM951 , M.2...