3 ms·
I have been testing a rpi4 and comparing it to the rpi3. The Rpi4 is actually the first Pi that is usable as a desktop computer, but have seen thermal issues li
by Dork1234 7y ago
I have been testing a rpi4 and comparing it to the rpi3. The Rpi4 is actually the first Pi that is usable as a desktop computer, but have seen thermal issues like you. Many the early reviews have only done short tests with the cover off. The thermal CPU throttling on the RPI4 is huge, while the RPI3 might slow things down 50-30%. The RPI4 will slow down to 100%. In the case I tested the RPI4 was running close the RPI3 speeds. I don't think a heatsink or CPU fan is needed there just not enough heat being generated to warrant the expense.I have had good luck with running the RPI with just the cover off, and some sort of air circulation in the room.
I have been trying to figure out the cheapest way to cool the RPI4, I am thinking a single slow 5V fan blowing across the card would be the best solution. This would also cool off the VLI, and take up less room on the card. I am just hoping someone will make the case, fan combination the works at a good price point. If things get too pricey then other SBC look very interesting.
I am really disappointed the thermal issues were not considered. A simple fan header like on UDOO boards, or an official case with space and air flow so a heat-sink could actually work would make me feel a lot better.
- true_tuna 7y agoI’m assuming you updated the firmware? There was a fix that lowered the temperature significantly.
- bjoli 7y agoOnly 3-4c in my case, with some losses in USB data transfer rate.
- Dork1234 7y agoI haven't installed the latest firmware, is there a way to backup my current firmware so I can compare them easily?
- unikernelenthu 7y agoTry this one: https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=243500&p=1490467#p1490467 https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=2435... I believe the old binary is there and you can revert using the same mechanism
- bjoli 7y agoIf you don't use a hat, you can probably fit the pi a real heat sink or with something like this: https://geekworm.com/collections/new-arrivals/products/raspberry-pi-4-model-b-armor-aluminum-alloy-case-protective-shell https://geekworm.com/collections/new-arrivals/products/raspb... For my rock pi, that is more than enough.
- Dork1234 7y agoIt looks like a great heat sink, I wish I could order one now. My biggest concern with that is the blocking of the camera connector. It is also 4 times more expensive than a cheap 5V fan.
- bjoli 7y agobut without noise! My significant other is allergic to noise. Either I install a fan that is too big and run it on the lowest setting, or I do it passively. I don't like moving parts, so passively it is :D I just got my rock pi 4. It is undocumented and is probably full of hacks (someone mentioned 5 different partitions just to get it to boot), but it has an official huge heatsink for $8 that can be combined with a poe hat. My rpi4+poe hat now has a heat sink consisting of 5 cent euro coins and one of those very very small heat sinks that does nothing :D
- Dork1234 7y agoI am running a Noctua 40mm 5v fan on top of my Raspberry PI. It cannot be heard, I've been tempting to under volt it 3v since it has been keeping my RPi4 at 50C under load without heatsink.