[carpe] RPi3 Temperature Updates

[jep200404 at columbus.rr.com]

See colug.net/carpe for carpe links, including mailing list.

On Wed, 10 Aug 2016 20:38:35 -0400, jep200404 at columbus.rr.com wrote:

> Pi3 temperatures
> 
>     Pi3 #1 running Raspbian Jessie of 2016-05-27

>         in Pi Holder (Pi 3) Case with Heat Dissipation without thermal grease
>         https://wickedaluminum.com/products/pi-holder-pi-3-case-w-heat-dissipation
> 
>             83C whole case is hot, but not too hot for long touch:
>             while true; do time factor 11111111111111111111111111111111111111;done &while true; do time factor 11111111111111111111111111111111111111;done &while true; do time factor 11111111111111111111111111111111111111;done &while true; do time factor 11111111111111111111111111111111111111;done &
> 
>             50C:
>             idle
> 
>             56C: case is very warm; ambient 81.7F
>             youtube in invisible tab in small window

        in Pi Holder (Pi 3) Case with Heat Dissipation with
        MX-4 thermal compound and shims below circuit board 
        directly underneath CPU and other big chip on top
        pushing board up so that the big chips on top
        mate better with aluminum of case.

            while true; do time factor 11111111111111111111111111111111111111;done &while true; do time factor 11111111111111111111111111111111111111;done &while true; do time factor 11111111111111111111111111111111111111;done &while true; do time factor 11111111111111111111111111111111111111;done &
                48C (63.5F ambient)
                54C (66.4F ambient)

            quad factor above, plus 720p youtube whole screen:
                59C (74.8F ambient)
                60C (76.8F ambient)

            idle:
                32C (67.1F ambient)
                35C (68.4F ambient)

            whole stack of proprietary application:
                42C (68.4F ambient)
                48C (76.8F ambient)

So the Pi Holder case is a huge help in cooling the RPi3.
MicroCenter is clearing them out at $57.97.