My NUC, which I have been using for the past couple of years as a PMS without any major issues, for the past few months started shutting down by itself when PMS transcodes, in this specific case while creating some optimised media for my friends. It also happens when syncing on my iOS devices (when I select anything other than “Original quality”).
This does not happen when the videos are played, but only in the above cases.
CPU is used at 34% on all cores (I’m monitoring live right now), fans spins like crazy, I think that at some stage the CPU limit of 100 degrees has been reached and the computer shut itself down.
Any tips on what I should look or change to avoid this?
Transcoder quality is set to “Automatic”
Background transcoding x264 preset is “Very fast”
Use hardware acceleration is enabled.
Server is a NUC7i5BNK- i5-7260U CPU @ 2.20GHz
This happened again this right moment, I was connected with Remote Desktop and the temperature was at 85C.
Got a big blue “Shutting down” message without any warnings.
The only idea I have is to check the cooling system.
Make sure there is no dust inside, ventilation slits blocked, fans standing still.
Also, in case you disassembled the computer, an often-made mistake is to lift up the heat sink from the CPU. And then to put it simply back.
You cannot do this, if there is thermal-paste used. Because the lifting up/ putting down will embed many air bubbles into the paste.
And air is a good thermal insulator…
Only cleaning the old paste and applying new paste will help.
@OttoKerner, thank you for taking the time to respond.
After disassembling the NUC I managed to clear the dust on the fan and on the slits. I did not risk removing the heatsink because I’m not skilled enough (I was scared enough of removing all the small wires!). But that did the trick. Trying again with the same file, the temperature never exceeded 60C, and now that the CPU is idle it’s at 25C instead of the previous ~40C.
