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From: David Taylor <david-taylor@blueyonder.co.uk.invalid>
Newsgroups: comp.sys.raspberry-pi
Subject: Re: What do I need to go with a Pi 4
Date: Tue, 9 Apr 2024 15:38:09 +0100
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On 09/04/2024 13:52, Adrian wrote:
> I'm currently running a Pi2, which has a BME280 (via a hat) and a SSD
> attached to it.  The Pi is now starting to struggle to generate graphs
> for my home website, so I'm thinking of swapping it for a Pi4.  A
> rummage online doesn't seem to fully answer my questions.
> 
> Apart from the Pi4, to upgrade, I know that I will need a bigger power
> supply and a HDMI adapter lead, but after, things are a bit vague.  Can
> I get away with the Pi4 without any additional cooling, or do I need a
> heat sink or fan, and if so, how do they get on with the hat ?  The
> space it is in has had a temperature range of -1 to 40 degrees C, the
> mean across that time is about 15.5C.
> 
> TIA
> 
> Adrian

Adrian,

No problem with the other suggestions.

When you say "starting to struggle" what have you measured?  Are you running 
out of memory, CPU power, disk I/O, or network I/O?  I think it would be useful 
to know what exactly in your system needs changing.

It's possible that a Pi 3B+ might be a sufficient upgrade (but can you still 
get them?).

The Pi-5 creates quite a bit more heat than the Pi 4, and has some software 
compatibility issues, so unless you really need the 5, stick to the 4.  (I have 
both here).  If you are not running headless, the Pi 400 has a heatsink and 
keyboard built in.  I have a couple here and have been very pleased with them. 
One even runs both Windows and Linux, that's using the Twister OS.  It uses 
about 2 GB of its 4 GB memory, and averages 10-12% CPU.
-- 
Cheers,
David
Web: https://www.satsignal.eu