I’ll tell you about my experience with the official box and the overheating is incredible.
I bought the set5 which came with its fan, it was the most suitable for the ventilation that was sold,
I was delighted thinking that it would provide sufficient ventilation.
Then I acquired the be14000 module
I start working first with a 12cm USB fan since I always work like this to keep everything cool and so that nothing gets hot, especially with the BE14000 board.
Once I am familiar with Banana and OpenWRT, I start to assemble the box … be careful I put a heatsink on the sfp+45 that did not come with it to prevent overheating.
The first thing I see is that with any official image from the wiki the fan does not work, better not to talk about the official images which are a real joke.
Then I try unofficial images, at the moment wifi7 does not work, but at least openwrt users can be happy with the work of several colleagues with their images that are fluid and we have 6g, thank you for your work, and it turns out that the fan works perfectly with these images. So I started to mount the official box.
I finish closing the official box
I turn it on and it turns out that after 5 minutes it is already hot, after 20 minutes it starts to get too hot, but after an hour it seems like a toaster.
I have to turn it off, and start disassembling it since they have not left any cooling under the box, in order to put some fan in.
This is how I have it currently working
For now, until my brother can make me vents on the bottom and the top cover, it will stay like this.
I think it is regrettable that they have not taken into account that it is a toaster, once you close the box.
I was just giving you my experience with the official box, and that is even though I have removed the nvme, to save more heating.