On 26/08/2020 14:57, Derek.Moody wrote:
> I see lots of threads on here about fan problems and cases.
>
> I don't have them.
>
> My first Pi4, a 1GB model, has been running continuously since July
> 2019, connected to an SSD, as a general server: lightweight NAS +
> printer + Lan-WWW + in-house mail.  These days it runs Puppy Linux
> but that's probably not relevant.
>
> I printed a case for it and set it up - At first it needed a
> fan-shim and still overheated occasionally.  But after the first
> firmware upgrade the temperature problems reduced and, once I
> removed the case they dropped further.
>
> After the second (I think) upgrade I was able to remove the fan
> shim and, as long as the Pi is on it's side, it's fine.

I had to remove the fanshim because the tiny fans kept failing, which is
a shame as I liked the temperature dependent colour LED, and contributed
an enhancement to the code on github.

If I set the fanshim up to go on and off at approximately 25% duty cycle
it would maintain an average of 55C idle, if on continuously then around
45C idle. I preferred having it on all the time for the lower
temperatures, and in the end the fans lasted about 3-4 months regardless
of the usage pattern. I've not heard anyone else have issues, so god
knows why mine don't last.

> So now my 1GB, 2GB and 4GB Pi4s are running cool, without fans and
> without cases: if you must have a case get something very roomy
> with lots of ventilation.  Mine are mounted on edge, one of the
> socketed sides upwards 'though one of them is just dangling from
> it's leads.

My new 8GB Pi4 arrived today (thanks Pimoroni) to replace the 4GB which
died just as I was putting in the new case. This one is happy in the
case which has a larger 40mm fan connected to 3V3 so it's silent and
maintains 43C idle, 60C with all 4 cores flat out. I've used this type
of case for both my 3B and 3B+ with 35mm fans on 3V3 and they've lasted
for years with neither fans or the Pi's failing.

> So: Is everyone keeping their firmware up to date?
>
> If you haven't done so:
>    sudo apt update
>    sudo apt full-upgrade
>
> This does most of the firmware fixing and...
>
>    sudo apt install rpi-eeprom
>    sudo rpi-eeprom-update
>
> Checks your bootloader, if it's not the most recent...
>
>      sudo rpi-eeprom-update -a
>
> Fixes it and you will be up to date after the next reboot.

Thanks for that, my other 4B is up to date, but the new one out of the
box has updated.

---druck

--- SoupGate-Win32 v1.05