[arm-allstar] Good deal on RPI3B plus

[Don Backstrom - AA7AU]

On Thu 30-Aug-18 10:45, "Doug Crompton via ARM-allstar" wrote:
> The 3B+ definitely gets hotter. It must have heatsinks and preferably also
> a fan. Use the cpu_stats.sh to check temperature under load. A heatsink and
> fan are a must when using turbo mode.

	One thing I do with all my PI3 installs is to turn off both the 
Bluetooth radio and the WiFi radio(s) in /boot/config.txt so that we're 
not using/powering them = less power draw, possibly less heat, and less 
random RF flying around.

	Where possible, we have continued to use the old 3B units over the new 
3B+ unless we really feel we need the computing power. And, no need for 
5.8gig Wifi here.

	I also unplug my Logitech Unify USB dongle (keyboard/mouse) when I'm 
not using it, just to be sure nothing is trying to push power to that.

	Also: If I do need a second network connection, instead of using the 
"wlan0" approach, I use a $12 USB2 Ethernet adapter and use "eth1". I 
always physically label it with its MAC address.

	As always with any PI, a *quality* power supply with *quality cable 
power* is a must. Finally, one has to ultimately wonder about eventual 
degradation of the mechanical connection with the USB power cable to the PI.

	HTH,

	- Don - AA7AU