Re: What do I need to go with a Pi 4

On 2024-04-14, druck <news@druck.org.uk> wrote:

On 10/04/2024 10:22, The Natural Philosopher wrote:

On 09/04/2024 22:19, Adrian wrote:

40 was probably a one off (heat wave), but mid 30s occur every summer
month.
>
I've been looking at fan cases, but they all seem to prevent the use
of the HAT, which means I won't be able to find out what the ambient
temperature is.?? I suppose I could design one of my own

 
Seriously, you don't need a fan.
 
Just a *ventilated* case.
 
I am designing a case for mine right now, featuring a complete grille in
one end wall.
 
Experience shows that as long as hot air can escape and draw in cooler
air, all will be well

>
>
The Pi 4B will definitely throttle with only a ventilated case if it is
anything other than sitting idle all the time.
>
I don't see the point of letting it throttling when an inexpensive fan
will keep it at full speed under any load.

I use this passive heatsink on my pi4s

  https://thepihut.com/products/aluminium-armour-heatsink-case-for-raspberry-pi-4

But it there are not in cases otherwise.
Did some tests ages ago and it never throttled.

p.s. disclaimer - no relationship to pihut except as a satisfied customer.