Raspberry Pi4 continuous selfhosted server operations
!Selfhosted For Raspberry Pi4 continuous selfhosted server operations: with and without case fan. This graph show a 20°C decrease, with a slow rpm fan.
The metal case has thermal stickers to reach for main components on both sides, and the fan is what I have in scrap parts, totally not for that case but pushes a lot of air with low noise compared to screaming mini cpu fans.
Geometrinen_Gepardi
in reply to Ⓜ3️⃣3️⃣ 🌌 • • •Ⓜ3️⃣3️⃣ 🌌 likes this.
Ⓜ3️⃣3️⃣ 🌌
in reply to Ⓜ3️⃣3️⃣ 🌌 • •No, the highest temperature I have ever recorded was 76°C. Without fan, and using thermal pads to connect the case to components.
But I hate high numbers, excessive heat already shortened a Pi lifetime here, since then I am very cautious about that.
merthyr1831
in reply to Ⓜ3️⃣3️⃣ 🌌 • • •I've kept a raspberry pi 4b that's given a mild OC to 1900Mhz in my boiler cupboard for a year and all its needed to keep it below 50 is:
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Ⓜ3️⃣3️⃣ 🌌
in reply to merthyr1831 • •Lucy :3
in reply to Ⓜ3️⃣3️⃣ 🌌 • • •WolfLink
in reply to Lucy :3 • • •einkorn
in reply to WolfLink • • •0 F is defined as the lowest temperature a guy was able to reach with some random mixture which is arbitrary.
But 0 C is commonly defined as the point at which water turns from solid to liquid and the other way round. Scientifically it's ever so slightly off but still it's defined via Kelvin.
bluGill
in reply to einkorn • • •Ⓜ3️⃣3️⃣ 🌌
in reply to bluGill • •exu
in reply to bluGill • • •Seconds are clearly defined by one specific caesium-133 transition
small shifts and splittings in the energy levels of atoms, molecules and ions
Contributors to Wikimedia projects (Wikimedia Foundation, Inc.)bluGill
in reply to exu • • •Ⓜ3️⃣3️⃣ 🌌
in reply to bluGill • •In the world of embedded programming that would be a
/* Magic number do not change this value */
#define CAESIUM_FREQ 9192631770
ddash
in reply to Ⓜ3️⃣3️⃣ 🌌 • • •Ⓜ3️⃣3️⃣ 🌌 likes this.
Ⓜ3️⃣3️⃣ 🌌
in reply to ddash • •The duct shoots air horizontally in the general direction of a LibreComputer Lepotate. I take that as a bonus.
Darkassassin07
in reply to Ⓜ3️⃣3️⃣ 🌌 • • •That is one beefy fan for a rpi.
I've just got a case similar to this; but all snap together, no screws:
The fan runs off the pin headers. Meant for 5v, but I use the 3.3v line to run it a little quieter/slower.
Even that makes a good 10°c difference.
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SanguineBrah
in reply to Ⓜ3️⃣3️⃣ 🌌 • • •Aluminium Armour - Heatsink Case for Raspberry Pi 4
The Pi Hutmbirth
in reply to Ⓜ3️⃣3️⃣ 🌌 • • •I've got the same Geekworm cases for all my Raspberries. Added some extra thermal pads in some strategic places and have them all without any active cooling at room temperature (20-21℃). They barely go over 55℃:
The 3B+ has soft-throttling (can be disabled) starting at 60℃, full throttling at 70°C. The 4 starts throttling at 80℃ and the 5 at 85℃. So, with that completely passive cooling I'm still far away from these margins. No need for any moving parts that will make noise at some point in the future.
Also, since the cases have ribs on both sides, I have my Pis standing upright to hopefully make use of the stack effect - which might contribute to the slightly lower than OP's values.
phenomenon exposing movement of air into and out of buildings, chimneys, flue gas stacks, or other containers, resulting from air buoyancy
Contributors to Wikimedia projects (Wikimedia Foundation, Inc.)Creat
in reply to Ⓜ3️⃣3️⃣ 🌌 • • •The CPU is perfectly happy sitting at 50°C. It is slightly happier at 30, but it doesn't actually help in any way unless you run into throttling, or run (much) hotter for longer. It's fine.
Some might state that the CPU is probably gonna live longer, but seriously have you ever had a CPU die on you cause it was old (or even die at all, even)? Again, it's fine.
Having something that mostly agitates the air (not even really moving it) like a low-hundreds-rpm fan would also work. As would using one of those passive heat pipe coolers that are also overkill (especially with a fan, but just leave that off), but have the same "number looks better" effect.
Ⓜ3️⃣3️⃣ 🌌
in reply to Creat • •Then, yes, back in the days when overclocking and over powering was a thing, CPU actually died from all that, I changed a few for customers that didn’t know better. How ironic I did that to myself years later with little arm boards, isn’t it?
Creat
in reply to Ⓜ3️⃣3️⃣ 🌌 • • •ocean
in reply to Ⓜ3️⃣3️⃣ 🌌 • • •Ⓜ3️⃣3️⃣ 🌌 likes this.