Hello Martin,

> On Wed, 26 Aug 2020 14:57:28 +0100, Derek.Moody wrote:

>> I see lots of threads on here about fan problems and cases.

> Don't forget the chimney effect:

Yes, i have learned that from the Irisch Kelly Kettle to cook water.
It was invented in 1890 by Irisch fishermen.

> I like the idea of putting the Pi on its side too.

My naked Pi 3B+ hangs onts its HDMI and power cable on the glass side
of an old 12" computer monitor, as my Acorn Archimedes only seldom runs ;-).
The glass side of that old monitor is a good electric isolator.

> Mine (Pi 2B 512MB)

Are you sure about that memory size?
Only the old first Pi 1B and the Pi Zero(W) both have 512 MB,
all others are 1 GB from 1B+ (one core) up to the 2B, 3B and 3B+
who have all 4 cores.
The new Pi 4B is available at 1, 2, 4 and 8 GB.

Only my both 4B Pi's (4GB and 8GB) have a fan in a transparant case
(SOS-Solutions.nl).
All my other older Pi's do not have a fan or heatsinks.
For my 3B I bought an aluminium case, but that had the disadvantage of less
connectivity on WiFi.

Henri.

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