[arm-allstar] Pi3B vs Pi2B temperatures

[Doug Crompton]

Sam,

 You mentioned being in plastic enclosures. Does it have any ventilation? I
use small fans on all my nodes with heatsinks. I modified cases to mount
the fans. You do not have to move much air to reduce the temperature.
Running a 12V fan on 9V or using a series resistor reduces the speed and
extends fan life. This is also highly dependent on ambient temperature and
CPU usage. All of my Pi's are in a fairly constant 72F environment. I am
typically in the 40-50C green range on all of them and several run in turbo
mode.


*73 Doug*

*WA3DSP*

*http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*

On Tue, Jul 16, 2019 at 5:51 AM "Sam Skolfield via ARM-allstar" <
arm-allstar at hamvoip.org> wrote:

> Hello all,
> I've been running a simple node on a Pi2B for a year now, a single node
> with a voter instance. It's always displayed around 107º-113º, typically
> 107
> º. Last night I just set up a fresh install on a brand new Pi3B with
> heatsink kit with the same voter setup, and was surprised to see it up in
> the 120º range. I ran top on both servers and compared, they seemed to have
> a similar load. I swapped microSD cards and sure enough the new Pi3B still
> ran hot! Both Pis are in plastic enclosures. Perhaps the adhesive heatsink
> compound is hurting more than helping? I'm curious if anyone has had
> similar experience.
>
> --
> KJ6QFS
> Sam Skolfield
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