960 Evo Temps??

[TahoeDust]

For storage on my rig I am running two 500GB Samsung 960 EVO M.2 drives in Raid 0 and I also a 1TB 850 EVO SSD. Tonight I was moving some game files from my M.2 Raid array to my SSD. It was about 400GBs total. I happened to have HWInfo64 open monitoring something else when I noticed two M.2 drives temps go red...they were breaking 80c...

They both maxed out at 84c but seemed to hover i the mid/high 70c during the move. My questions are:

1. Is this safe?
2. Is this normal?
3. What is the difference in the two temperature sensors on the 960 EVOs?
4. Do the heatsinks EK sells actually work?

 

[Elixer]

Most all of these type of devices run hot.
Heatsinks might help more than none, however, direct airflow seems to help the most.

 

[Campy]

The controller heats up during sustained data transfer, it's normal from what I've heard. For that reason I'm going to guess the #2 sensor is for the controller. It's safe because the drive will throttle to protect itself, giving you less performance until temps come down. Like Elixer said, some heatsinks and/or airflow should help

 

[BonzaiDuck]

Perhaps devote some tedium, time and attention to case airflow plus installation of something like this?