trejan
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Re: Raspberry Pi 4 temperature

Sun Sep 29, 2019 3:28 pm

genodesiful wrote:
Sun Sep 29, 2019 2:52 pm
Oh cool, so from what I understand, the Pi now supports booting from mass storage over USB by default!
Only the 3B+ SoC has it enabled by default. The newer 3B boards that have the 3B+ SoC also probably have it enabled by default but I've not checked.

The 4 needs a bootloader firmware update which isn't ready yet.

Older Pi boards like the Zero don't support USB booting directly as the internal boot ROM doesn't have any support for it. You can partially work around it by putting bootcode.bin on a SD card. The rest of your install is on the USB drive.
genodesiful wrote:
Sun Sep 29, 2019 2:52 pm
I was able to boot from USB flash dives on my 3B+, but never from an HDD or SSD. Can you do that now?
It is the same mechanism. The problem is that some drives work slightly different or need a longer initialisation time.
genodesiful wrote:
Sun Sep 29, 2019 2:52 pm
I'm going to try This could have excellent applications for SBCs, since they have no mechanical parts... Maybe that's another case I'll considering making, also with all the connections (SD reader, USB, GPIO etc) extended and incorporated into the case chassis walls, so you never have to deal with touching the oil...
The mineral oil will get everywhere and start wicking up cables. You need to take special precautions when using oil immersion cooling because of this. I expect it to be a leaky disaster with a FDM 3D printed case. Oil immersion cooling isn't practical unless your situation absolutely needs it e.g. high voltages. Any PC builds using it are doing it for show purposes.

The oil is just to transfer heat from the device BTW. You still need to cool the oil itself if your device generates enough heat to raise the temperature of the oil significantly. You'll eventually get a fish tank full of hot oil and very poor cooling for the device inside.

bjtheone
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Re: Raspberry Pi 4 temperature

Sun Sep 29, 2019 4:35 pm

The Pi is very unsuitable for this. As mentioned the oil is a heat transfer device. Pump it through a chiller and away you go. However either you have to seal all the ports (good luck with that) or deal with oil wicking up the cables if you just submerge the Pi in a vat of oil, plus you would need extenders on everything.

Beyond the weird factor, it is totally unnecessary. Easiest option a fan or heat sink case, next up a large heat sink, next up naked PCB, vertical orientation. Basically everything except closed case works fairly well.

I am seeing 40-44 C, horizontal mount in case with a fan. Have chromium with 12 tabs open (some active update), Slack, XChat, Spotify, and Calibre, running. Firing up Youtube takes it up to 46-48. Happily runs Kodi and youtube fullscreen.

jamesh
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Re: Raspberry Pi 4 temperature

Sun Sep 29, 2019 8:31 pm

genodesiful wrote:
Sun Sep 29, 2019 2:52 pm
Oh cool, so from what I understand, the Pi now supports booting from mass storage over USB by default! That's great, because the SD card holders are painfully delicate!
Really? I've never had a problem with the SD card slot in 7 years, and that a lot of plugging in and out. Only time I had a physical problem in that area was when I lent on a board and snapped the SD card in half. The connector was fine...
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alphanumeric
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Re: Raspberry Pi 4 temperature

Sun Sep 29, 2019 9:04 pm

Most of the broken card holder posts I've seen were the result of not removing the card, before trying to remove the Pi from a case. The card edge hooks on the case and the card and or holder gets broken in the process.

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DougieLawson
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Re: Raspberry Pi 4 temperature

Sun Sep 29, 2019 9:14 pm

There was the broken slot problem with the original RPi1B (fixed with a clothes peg).

There was the push in, push out holder on the B+ & 2B where it wouldn't latch (fixed with an elastic band from the postie).

After that was replaced with the push in, pull out on Zero, 3B, 3B+, 3A+ and 4B the physical damage by failing to remove a card before removing a case is the only remaining risk. The damage can include tearing the slot off from the circuit board.
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Re: Raspberry Pi 4 temperature

Sun Sep 29, 2019 9:26 pm

Now that you mention it, I do remeber seeing issues with the original (non Micro) friction fit SD card slots. Loss of connection on some pins or something? I never owned a Pi with that card holder.
And some issues with the click in, click out, slots. I have some Pi's with those, A+'s. Working fine for me after years of use, but I don't remove those cards on any kind of regular basis. I have a friend who had the slot on one of his refuse to click and lock the card in. He had to tape it in place. A 2B I think? Even so, with all the Pi's sold, I don't think it was ever any kind of wide spread issue. Best guess is a bad run of holders from a manufacturer or something?

travellingkiwi
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Re: Raspberry Pi 4 temperature

Thu Oct 10, 2019 6:37 am

I have more than a dozen R-Pi's. Original (256MB RAM), Pi 1 with 512MB. Pi 2's and 3's. 3B+'s with POE and now Pi-4's (4GB). I've never had an issue with broken hardware apart from a Pi-1 (512MB) with an ethernet that doesn't work.

I have an original broken POE HAT that a dodgy amazon seller sold me after they were fixed (I never got around to sending it back). Apart from that the biggest problem I have is broken SD carsd (And SanDisk now inform me that the lifetime warranty on the SD Ultras is void if you use them in an R-Pi. You have to use the (more expensive) white Extreme cards

Those are really the only issues I've ever had. None of the older Pi's have had temperature issues despite the abuse I put them through.

As for the temperature issues themselves on the 4. I have a Pi-4-4GB sitting above my HW cupboard with a POE HAT and a zWave Razberry daughter card (Via extenders). The USB firmware fix has NOT been applied to this one. It's running OpenHAB 2.2 (Java app so quite a pig on CPU and memory) and have never had an issue with overheating. Even over the summer just gone where temps here got up to mid to late 30's.
Yes you can hear the POE HAT fan kick in now & again. But it's not continuous and you can tune the hysteresis if it really annoys you. The default kick-in temp is quite low and the turn off not far from it.

oicfar
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Re: Raspberry Pi 4 temperature

Mon Nov 04, 2019 2:09 pm

For my Raspis (10 at the moment -> 2x Pi 3B+ and 8x Pi 4 B) I'm using this
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cases. There is an 30x30 mm fan. On max speed the temperature ist between 36-46°C (nothing to do) and 60-68°C (all 4 cores at 100%).

And on Pi 4 as this:
20191102_204247_HDR-01.jpeg
20191102_204247_HDR-01.jpeg (188.18 KiB) Viewed 5071 times
fan. Max. temperature (sysbench on 4 cores for 1 hour) ist 37-38°C.

Vanx
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Re: Raspberry Pi 4 temperature

Tue Nov 05, 2019 10:20 am

Hello guys! I’ve bought a passive “heat sink case” like some of you did, included I found a generic grey thermal pad, and the version of the case is one of the firsts with soc and ram contact points merged and not covering perfectly. My problem is that once screwed in, the pads make good contact, but even leaving only the CPU thinner thermal pad, the PCB get pushed and bent a little bit. Is yours the same? What could I do? Is it ok to place the pad only on the soc leaving the ram alone? Should i find a thinner pad? I’m now trying to squeeze the included one to get it flatter.

dustnbone
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Re: Raspberry Pi 4 temperature

Wed Nov 06, 2019 3:51 am

If there's really no clearance then you could try using a thermal paste compound instead of the pad.

renice123
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Re: Raspberry Pi 4 temperature

Wed Nov 06, 2019 8:06 am

If the board is deformed, then ask to replace your new case. You can ruin the computer board and the game is not worth the bonuses. If you do not want to replace a bad radiator-case, you can take a file or any device to grind excess metal on a defective case. Grind carefully and then polish. Cast metal cases are often defective. Unfair manufacturers do not eliminate defects at the factory, so you have to do it yourself.
You can also replace the thermal pad with a thinner one than was supplied.
But you can not expose the circuit board with electronic parts to deformation: you can not bend it, load it with weight, twist it and so on.

Vanx
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Re: Raspberry Pi 4 temperature

Wed Nov 06, 2019 4:45 pm

renice123 wrote:
Wed Nov 06, 2019 8:06 am
If the board is deformed, then ask to replace your new case. You can ruin the computer board and the game is not worth the bonuses. If you do not want to replace a bad radiator-case, you can take a file or any device to grind excess metal on a defective case. Grind carefully and then polish. Cast metal cases are often defective. Unfair manufacturers do not eliminate defects at the factory, so you have to do it yourself.
You can also replace the thermal pad with a thinner one than was supplied.
But you can not expose the circuit board with electronic parts to deformation: you can not bend it, load it with weight, twist it and so on.
Thanks! There is half a mm on the cpu, and the main problem was with the ticker RAM pad, so I removed the latter and tried to stretch a little the cpu pad before placing the top case, of course it had to place a little pressure on the silicone pad but I read this is normal right? To fill the gaps... When I was screwing in the board seemed pretty firm, so no evident bending, just a little of pressure needed to spread the pad, the PCB seemed not perfectly straight even before placing it between the aluminum shields (when mounting it only the two screws near the front edge of the pi where a little raised to start from). It seems fine and the idle temps is around 41-43, and after running the stress test for 30 min it maxed at 60 degrees

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Imperf3kt
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Re: Raspberry Pi 4 temperature

Wed Nov 06, 2019 8:10 pm

Curiosity beckons.
How do you possibly bend the board while installing it in a case? The amount of force required to do so is quite large, you'd literally have to force the top down so hard your hands would hurt long before the Pi bent.

Or is it a matter of once it's screwed together? Even then you'd still feel pressure before the case was fully enclosed.

I would not trust a Pi that has been physically bent. It's not an iPhone 11, it isn't designed to be folded.
55:55:44:44:4C
52:4C:52:42:41

gordu
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Re: Raspberry Pi 4 temperature

Tue Mar 10, 2020 6:26 am

I just got a pi 4 1GB, but its temperature is crazy. With no load on a board sitting in open air the temperature reaches 96C in a few minutes after boot. With a fan, but no heat sinks it stabilizes at about 63C. I am using the official pi PW supply.
[email protected]:~ $ vcgencmd measure_volts
volt=0.8350V
[email protected]:~ $ vcgencmd measure_temp
temp=63.0'C
uptime
23:23:36 up 13 min, 2 users, load average: 0.00, 0.00, 0.00

Any ideas?

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Re: Raspberry Pi 4 temperature

Tue Mar 10, 2020 7:22 am

Any overclock or changes to config over standard?

If not, there is something wrong with the board.
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Re: Raspberry Pi 4 temperature

Tue Mar 10, 2020 7:37 am

That definitely sounds like something is wrong, I've used a Pi4b in a sweltering 46 degrees celcius (Probably higher) and it doesn't reach even 70°C under a medium load.
55:55:44:44:4C
52:4C:52:42:41

jahboater
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Re: Raspberry Pi 4 temperature

Tue Mar 10, 2020 7:57 am

What is the room temperature?

I suggest try running with a fresh install of the latest version of Raspbian on a spare SD card.
There have been recent changes to the firmware that allow the Pi4 to run much cooler.

This log is for an over clocked and over volted Pi4 with one core running flat out for several hours:

Code: Select all

$ ./pistat.sh 
Time       Temp     CPU     Core         Health           Vcore
07:55:10  43.0'C  1800MHz  500MHz  00000000000000000000  0.8938V
07:55:20  43.0'C  1800MHz  500MHz  00000000000000000000  0.8938V
^C
$ uptime
 07:57:02 up 8 days, 17:08,  2 users,  load average: 1.00, 1.00, 1.00
No fan, just a cheap stick-on heat sink, 21C ambient.
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ifbinary
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Re: Raspberry Pi 4 temperature

Wed Apr 08, 2020 11:29 am

jahboater wrote:
Tue Mar 10, 2020 7:57 am
What is the room temperature?

I suggest try running with a fresh install of the latest version of Raspbian on a spare SD card.
There have been recent changes to the firmware that allow the Pi4 to run much cooler.

This log is for an over clocked and over volted Pi4 with one core running flat out for several hours:

Code: Select all

$ ./pistat.sh 
Time       Temp     CPU     Core         Health           Vcore
07:55:10  43.0'C  1800MHz  500MHz  00000000000000000000  0.8938V
07:55:20  43.0'C  1800MHz  500MHz  00000000000000000000  0.8938V
^C
$ uptime
 07:57:02 up 8 days, 17:08,  2 users,  load average: 1.00, 1.00, 1.00
No fan, just a cheap stick-on heat sink, 21C ambient.
Dam thats amazing temps! I sit around 60'c on idle w/ ambient temp of 22'c, also with cheap stick-on aluminum heatsinks in the OG case w/ lid off. Are your heatsinks copper or something? I've ordered a new enclosure with some active cooling so really, hope that brings the temp's down enough to not worry about getting throttled as the original intended use was an OC'd retropi, set and forget, station.

I'm on the latest fw in the stable stream.

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no3rpi
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Re: Raspberry Pi 4 temperature

Wed Apr 08, 2020 1:55 pm

Stock RPI4 in plastic case with many extra holes and without any radiator or cooler; running LibreElec IPTV non stop at resolution 1080p, position almost vertical, if is horizontal then temp it is ~57-60'C. Temp room ~21-22'C

Code: Select all

arm_freq=1500
core_freq=500
core_freq_min=200
gpu_freq=500
gpu_freq_min=250
over_voltage_avs=-42500
arm:	frequency(48)=600169920
core:	frequency(1)=199995120
h264:	frequency(28)=500000992
isp:	frequency(45)=0
v3d:	frequency(46)=500000992
core:	volt=0.8375V
sdram_c:	volt=1.1000V
sdram_i:	volt=1.1000V
sdram_p:	volt=1.1000V
temp=53.0'C
throttled=0x0
uptime 13:49:59 up 2 days,  5:33,  load average: 1.19, 1.08, 1.02
RPI3^2 + RPI4 = :idea:

Lenchantin
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Re: Raspberry Pi 4 temperature

Thu Apr 30, 2020 8:14 pm

I know it's almost a year late. Reporting:

Using Vilros case w/ fan and heat-sinc on Pi4 B+ with headless Ubuntu server 64bit 18.02 at 49C -- running a kubernetes dev cluster with 3 nodes. Never really peaks over 62, from what I've seen. :geek:

Don't know if this helps anything at all, but the Vilros cases are pretty awesome.

novorado
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Re: Raspberry Pi 4 temperature

Tue May 05, 2020 8:24 am

Passive heatsinks + Vent
Nightly fsarchiver, running Buster, LVM2 4TB, bitbucket server + jenkins + samba 4 AD DC (10 ppl workgroup) with potential to docker-swarm for redundancy/2nd DC. Will see how that goes, frankly it's murdering embedded server market at 3.5Watt
Screenshot from 2020-05-05 01-19-01.png
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Toaster50
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Re: Raspberry Pi 4 temperature

Wed May 20, 2020 10:26 pm

Hello All, this is my first post, I have just become a proud owner of a Raspberry Pi 4. I have never owned a Raspberry of any type before and was interested to see the posts about potential temperature issues. As well as the Raspberry Pi 4 I purchased a HDMI and lan cable and thought it was sensible to buy a case (I am just as likely to touch something I should not or place the device on something conductive!) I also purchased an Aluminium Armour - Heatsink Case for Raspberry Pi 4 https://thepihut.com/collections/raspbe ... berry-pi-4

I started reading this forum and thought I had better just test what happens, I have to say I have been impressed, the temperature I have seen the unit running today is between 35 C and 61 C. at idle the unit seems to be around 35-38 C the temperature rises as the unit starts working playing you tube videos etc but even here I am seeing around 48-50 C I ran CPUBURN a couple of times and even with the fans switch off I had 61C. So I am currently happy with the performance. I suspect that with no heat sink or Fans the temperature could be somewhat higher maybe the 80 odd C that some have seen.

davidtuti
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Re: Raspberry Pi 4 temperature

Fri May 22, 2020 7:40 pm

I’m newbie with rasp 4.
I buy one, oficial case that it had a little fan of 5V. Do you know of is necessary? I hate the noise of the fan
Thanks

jahboater
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Re: Raspberry Pi 4 temperature

Fri May 22, 2020 7:46 pm

davidtuti wrote:
Fri May 22, 2020 7:40 pm
I’m newbie with rasp 4.
I buy one, oficial case that it had a little fan of 5V. Do you know of is necessary? I hate the noise of the fan
There is no need for a fan.
If you want it to run cool, allow plenty of ventilation (mount it on edge), or use one of the metal cases where the case itself acts as a heat sink.
The FLIRC case is popular:
https://thepihut.com/products/flirc-ras ... n8QAvD_BwE

also this one:
https://thepihut.com/products/aluminium ... swQAvD_BwE

There are also cheap stick-on heat sinks, and this one is very effective and very cheap:
https://uk.rs-online.com/web/p/heatsinks/7500951/
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davidtuti
Posts: 93
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Re: Raspberry Pi 4 temperature

Sun May 24, 2020 9:51 am

Hi
Recently I purchased a new rasp4.
Have installed Kodi, Docker, transmission and some light scripts every x minutes executing.
I’ve checked temperature and I have an average of 55C. Now I’m watching a movie in kodi and I have 62C stables.
What do you think about that temperature? Do you think should I worry?

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