NanoPi Neo Heat Issue

Andrew
Hello,

I bought the NanoPi Neo and after installing some software for UbuntuCore
I took notice that the CPU got quite hot(Too hot to touch for longer than
some seconds).
cpu_freq reads temp=55-70 of whatever unit and the frequency is 1008000.

Can I change the governor from interactive to ondemand or something
similar?
The package cpufrequtils is not available.
Or is there a different solution to decreasing the heat?

So how do I do it, if possible at all..

Thanks for helping!

- Andrew

HermannSW
There were discussions on the "NanoPi M1/NanoPi NEO Hardware" forum on this
recently. Basically the CPU has no problem with temparatures of 125°c. I
bought the official Nanopi Neo heatsink from Friendlyarm, and it had an
effect, but as others conjectured and I verified that thermal transfer of
thermal paste from CPU to heatsink is poor. Find the details in this
thread:
http://www.friendlyarm.com/Forum/viewtopic.php?f=47&t=274

As long as you do not run many high CPU processes in parallel the heatsink
is good though and reduces the CPU temperature from 73°C to 56.8°C (with 2
processes consuming 100% CPU each).

Hermann.

davef
Guess you have followed a similar thread on the new forum.  A picture of
the thermal pad was shown.  Hard to believe it does anything to get the
heat out of the CPU.

I suggested a thermal pad (like 0.5mm thick) as used on other semiconductor
parts, maybe a TO-220 part and pad up the space with a small piece of ally
sheet.

Haven't got one, so I haven't tried it.

As far as the suggestions you make, one can do it on a Debian Jessie
system, so maybe someone needs to port those application to AllWinner.  I
would look around the AllWinner users forum.

HermannSW
Correction, from 81°C to 66°C with 1 process consuming 100%, see very first
diagram in the thread.

davef
Looks like I am slow on the keyboard as HermannSW inserted his response.

You can also buy stick-on heatsinks that have a more appropriate thermal
pad, maybe one of those might fit.  I did that on a NanoPi2.

Andrew
Thanks for the replies!

I feared that this package is just not compatible, yet.
But if you say that it can endure temperatures up to 125°C than this won't
be a big deal after all.

- Andrew

jjm
Hello all,
     Our H3 CPU agent told us that AllWinner suggest us add heat sink to
slow down the temperature when we use H3 board. 
     And friendlyarm designed heat sink for NanoPi M1 and NanoPi NEO.