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HawaiianPi
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Re: Raspberry Pi 4 temperature

Sat Jul 20, 2019 11:19 am

kennyc wrote:
Sat Jul 20, 2019 10:56 am
have fans/heatsinks on the way as well as a Pi 4 4Gb :) and a faster memory card....
If you're using a fan you won't need a heatsink. A fan alone will keep your Pi4 cool, assuming your case has good ventilation.
My mind is like a browser. 27 tabs are open, 9 aren't responding,
lots of pop-ups...and where is that annoying music coming from?

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kennyc
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Re: Raspberry Pi 4 temperature

Sat Jul 20, 2019 11:25 am

HawaiianPi wrote:
Sat Jul 20, 2019 11:19 am
kennyc wrote:
Sat Jul 20, 2019 10:56 am
have fans/heatsinks on the way as well as a Pi 4 4Gb :) and a faster memory card....
If you're using a fan you won't need a heatsink. A fan alone will keep your Pi4 cool, assuming your case has good ventilation.
That's exactly what I'm gonna try first....I'd prefer not to stick things on my processor chips that could be difficult to remove etc...

for now this one 1Gb model seems to be running fine with the top off of the Official red/white case...

We'll see how the 4Gb model runs once I get it in my grubby little hands... :)
Kenny A. Chaffin
Blog: http://mansionsofthemind.blogspot.com/
Art: https://www.deviantart.com/kennyc
"Strive on with Awareness" - Siddhartha Gautama

DaQue
Posts: 9
Joined: Tue Jun 25, 2019 2:41 pm

Re: Raspberry Pi 4 temperature

Sun Jul 21, 2019 12:38 am

Has the firmware update come out of beta yet? I have heatsinks on mine and it runs 36-40C at idle on the latest install image and apt upgrade.

trejan
Posts: 1100
Joined: Tue Jul 02, 2019 2:28 pm

Re: Raspberry Pi 4 temperature

Sun Jul 21, 2019 12:48 am

DaQue wrote:
Sun Jul 21, 2019 12:38 am
Has the firmware update come out of beta yet?
No. The beta USB controller firmware has some issues. The utility used to apply the firmware update isn't entirely reliable either.

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kennyc
Posts: 75
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Re: Raspberry Pi 4 temperature

Sun Jul 21, 2019 12:51 am

kennyc wrote:
Sat Jul 20, 2019 11:25 am
HawaiianPi wrote:
Sat Jul 20, 2019 11:19 am
kennyc wrote:
Sat Jul 20, 2019 10:56 am
have fans/heatsinks on the way as well as a Pi 4 4Gb :) and a faster memory card....
If you're using a fan you won't need a heatsink. A fan alone will keep your Pi4 cool, assuming your case has good ventilation.
That's exactly what I'm gonna try first....I'd prefer not to stick things on my processor chips that could be difficult to remove etc...

for now this one 1Gb model seems to be running fine with the top off of the Official red/white case...

We'll see how the 4Gb model runs once I get it in my grubby little hands... :)
Just minutes ago received delivery of my Pi 4 4GB. Posting this from it (with the sd card from the 1GB -- it works to swap :) ).

Already I'm seeing an improvement in browser performance.
Same amount of memory being used though.....now I'm getting very confused....

Hmmm,,,..
Kenny A. Chaffin
Blog: http://mansionsofthemind.blogspot.com/
Art: https://www.deviantart.com/kennyc
"Strive on with Awareness" - Siddhartha Gautama

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kennyc
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Re: Raspberry Pi 4 temperature

Sun Jul 21, 2019 4:22 pm

A youtube video with Pi 4 and cooling types and tests

https://youtu.be/AVfvhEJ9XD0
Kenny A. Chaffin
Blog: http://mansionsofthemind.blogspot.com/
Art: https://www.deviantart.com/kennyc
"Strive on with Awareness" - Siddhartha Gautama

ptrdish
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Joined: Tue Jul 16, 2019 6:50 pm

Re: Raspberry Pi 4 temperature

Sun Jul 21, 2019 5:24 pm

Longreen wrote:
Sat Jul 20, 2019 6:37 am
ptrdish wrote:
Tue Jul 16, 2019 7:06 pm
I had zero luck mucking with firmware and configs, but adding a fan makes a huge difference. I added silent fans to both my PI4's (2G & 4G) last week and the idle-ish temps dropped by 24c and 28c degrees respectively. Now even under heavy load both top out just over 40C over the past week. I've had heatsinks since day one but they didn't help much.

Before and after Noctua 5v silent fan add (case 3D printed, design tweaked from Thingiverse)
Hi that is cool ! Literally:-)

Can you please let me know the files for that 3d case you modded ?

Also what Noctua fan is that ?

Thank You !
I slightly modded John_Sinclair's Pi4 case design (here: https://www.thingiverse.com/thing:3723481). All I did was add the slats to case bottom section of the case for wall mount in Tinkercad.com, attached, download the top from link, I used the taller 40mm fan top. You need to print with 0 bottom and top layers and about 35% infill to get the holes in the case instead of solid top/bottom.

The fans are NF-A4x10 40mm. I wrote "silent" in my last post, but I noticed they are softly audible 3 feet a way when I have everything else shut down in my den (never happens, I have an air purifier on low in here 24x7). You might want to cut the fan wires as there is a lot of excess wire to wrap around inside the case. The fan comes with a 2-pin adapter that plugs right into 5v pins but adds a few inches of wire to deal with inside the case.
Attachments
Pi4Case_bottom_only_wall_mount.stl.zip
(80.45 KiB) Downloaded 24 times

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RPIgoodSBC
Posts: 126
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Re: Raspberry Pi 4 temperature

Mon Jul 22, 2019 3:05 pm

@ ptrdish

Noctua fans 5V 40x40mm works very well and near silent at 3,3V.
Plug in at 3,3V if you want more silent fan operation.

I have both Noctua NF-A4x20 5V PWM that is better than Noctua NF-A4x10 5V PWM at 3,3V, more silent and more air flow.
Using a heatsink 26x20x5mm and thermal-pad 3M-8810 on CPU and running stress -c 4 about 30 minutes, temp is no more than 50C in a Pimoroni lego layers sandwich-case that is only 5cm tall.

All this on Rpi-3B+ but I believe that on Rpi-4B is very similar results.
Edited after test on rpi4 stress temp is 11C more than a rpi3B+ increasing up to 61C on rpi4B.

Some data:

NF-A4x20 5V PWM 40x40x20mm

5000 RPM (min 1100 RPM)
Airflow 9,4 m³/h
Static pressure 2,26 mm H₂O
Acoustical noise 14,9 dB(A)
Max. input power 0,5 W at 5V
Max. input current 0,1 A at 5V

***

NF-A4x10 5V PWM 40x40x10 mm

5000 RPM (min 1000 RPM)
Airflow 8,9 m³/h
Static pressure 1,95 mm H₂O
Acoustical noise 19,6 dB(A)
Max. input power 0,35 W at 5V
Max. input current 0,07 A at 5V

***

Edited one day later...

I have been using the NF-A4x20 5V PWM 40x40x20mm fan connected to the 3.3V line of the GPIO of the raspberrypi 4 and with usb boot from SD first and I must say that the raspbian system is unstable. When opening chromium after one minute The whole system hangs.
I thought it could be a matter of updating the software but after removing the 3.3V gpio fan and connecting it to the USB 5V through the noctua PWM adapter, the system is stable again.
In rpi3B+ the same fan does not give any problem of system stability although in this case I have used rpi3B+ in headless mode.
I think it is better to use these fans connected to the 5V to avoid stability problems.
Last edited by RPIgoodSBC on Tue Jul 23, 2019 2:51 pm, edited 4 times in total.

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RaTTuS
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Re: Raspberry Pi 4 temperature

Tue Jul 23, 2019 9:55 am

IRT - the geekbench one i.e.
https://www.raspberrypi.org/forums/view ... 5#p1498309
before hand I got
https://pastebin.com/zUbKrrLt
after using that I get
https://pastebin.com/SCYd6L1v
and with a 2nd run after as
https://pastebin.com/TzZp5a2U
I'll do some other tests later
How To ask Questions :- http://www.catb.org/esr/faqs/smart-questions.html
WARNING - some parts of this post may be erroneous YMMV

1QC43qbL5FySu2Pi51vGqKqxy3UiJgukSX
Covfefe

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RPIgoodSBC
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Re: Raspberry Pi 4 temperature

Tue Jul 23, 2019 2:45 pm

Noctua NF-A4x20 5V PWM 40x40x20mm controlled by 5V noctua control fan PWM on 5V USB-2 port and noctua on Pimoroni lego layers sandwich case after 30 minutes...

Code: Select all

stress -c 4
stress temp is 61C.

Fan is running at 50% and is near totally silent.You need put your ear at 20cm to hear something from the fan.
I am using little heatsinks on cpu, ram and hub usb chip.Heatsinks are 1,5x1,5x1cm tall.Thermal pad 3M-8810 is used on base heatsinks.

Idle temp Raspbian is 43C.

The case is now only 5,5cm tall.

I'm very happy with the results and the case is now more compact.
Last edited by RPIgoodSBC on Tue Jul 23, 2019 3:15 pm, edited 2 times in total.

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kennyc
Posts: 75
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Re: Raspberry Pi 4 temperature

Tue Jul 23, 2019 3:08 pm

RPIgoodSBC wrote:
Tue Jul 23, 2019 2:45 pm
Noctua NF-A4x20 5V PWM 40x40x20mm controlled by 5V noctua control fan PWM on 5V USB-2 port and noctua on Pimoroni lego layers sandwich case after 30 minutes...

Code: Select all

stress -c 4
stress temp is 61C.

Fan is running at 50% and is near totally silent.You need put your ear at 20cm to hear something from the fan.

Idle temp Raspbian is 43C.

The case is now only 5,5cm tall.

I'm very happy with the results and the case is now more compact.
Excellent! :)
Kenny A. Chaffin
Blog: http://mansionsofthemind.blogspot.com/
Art: https://www.deviantart.com/kennyc
"Strive on with Awareness" - Siddhartha Gautama

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PiModules
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Re: Raspberry Pi 4 temperature

Tue Jul 23, 2019 6:23 pm

Hi,
We just send to factory for manufacturing the following HAT - PiCoolFAN4. It could be an alternative for the other cooling devices. It combines PWM FAN, HW RTC with battery, and other features.

https://pimodules.com/product/picoolfan4

In about 2 weeks should be here.
PiCoolFAN.jpg
PiCoolFAN.jpg (30.08 KiB) Viewed 2894 times


Kind Regards
PiMaster
www.pimodules.com

laurent
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Re: Raspberry Pi 4 temperature

Wed Jul 24, 2019 9:16 am

PiModules wrote:
Tue Jul 23, 2019 6:23 pm
Hi,
We just send to factory for manufacturing the following HAT - PiCoolFAN4. It could be an alternative for the other cooling devices. It combines PWM FAN, HW RTC with battery, and other features.

https://pimodules.com/product/picoolfan4

In about 2 weeks should be here.

PiCoolFAN.jpg



Kind Regards
PiMaster
www.pimodules.com
Nice design, seems compatible with the official case (generously drilled of course).
Give me the same with a radial fan which blow the hot air to one side, and a extension 40 pin connector to prevent my audio HAT on top to be boiled...
And a the case which is designed for.

Ok, ok, I'll ask Santa :D

galicin
Posts: 11
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Re: Raspberry Pi 4 temperature

Wed Jul 24, 2019 5:32 pm

galicin wrote:
Fri Jul 12, 2019 10:49 am
I did pre-order this - https://geekworm.com/collections/new-ar ... tive-shell (will share results once I have it).
Image
I'm using the case since one day - in my hardest use case - Internet HD video in Chrome now it's less than 60.
These are temperature ranges in different configurations:
- no case, no heatsink: 65--8x
- no case, heatsink: 60-80
- armor case: 40-60
For me this is perfect setup as I don't stop my RPi and don't want to have any noise from a fan.
Last edited by galicin on Fri Jul 26, 2019 3:48 am, edited 1 time in total.

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PiModules
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Re: Raspberry Pi 4 temperature

Wed Jul 24, 2019 8:39 pm

Hi,
If you not like the FAN, it is FINE. However we tried to add to the PiCoolFAN4 as much as possible extra features + cooling, as usually people need a HW RTC with coin battery so we added it, as users need to know easy about the temperature we added 3 LEDs (Cold, FAN-running, HOT), as user need many times to have 2 extra LEDs we added them, as user usually use RPi4 as Kodi, we added IR interface, same with sounder, 1-wire interface and optionally Relay. PiCoolFAN4 is just one solution, not THE solution. All others solutions are also fine on my opinion. Depending to application, used case etc user can select the required solution. Regarding the FAN noise, I'm not completely agree with you, partially you have little bit right, however due to obvious noise (even very low), we added PWM driving, so speed of FAN can vary depending to temperature, so if you put the threshold low i.e. 35 degs and FAN to 25%, the total temperature will be under control, as increasing of temperature will not just activate the FAN, will increase only the speed of running. We are planning to make extensive report until Monday with results and publish on our web site.
PiCoolFAN is just one another solution, could be used in some application and not in others. If users need to have RTC + FAN + some other extra features. All other solution are also fine on my opinion.
Have a nice evening
Kind Regards
PiMaster
www.pimodules.com

goodburner
Posts: 60
Joined: Sun Jun 16, 2019 3:20 am

Re: Raspberry Pi 4 temperature

Wed Jul 24, 2019 11:06 pm

Soooo, the fan makes a LOT of difference to the temps. At least in here where the room temp is around 25 C, as soon as the fan got disconnected for a few minutes, Raspy gained almost 30 C, and that was with the heatsink(which doesn't does much but isn't bad to have it either).

I don't want to feel like I'm dissing at the Raspberry foundation guys all the time, but I think everyone would have been a lot more happier if optional fans and heatsinks were provided, at least for the desktop kit.

It's not possible for this device to function as a desktop without one, it just will constantly throttle after reaching 80C.

this was with a mild overclock of 250/100Mhz to CPU/GPU. I think they should consider this instead of solely relying on software/hardware optimizations, I don't doubt they'll make a difference but it would dwarf any made by a tiny fan that barely costs 5$.

Image

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PiModules
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Re: Raspberry Pi 4 temperature

Wed Jul 24, 2019 11:21 pm

Hi,
I agree with you, however in some case a big (like in above picture) cooling heatsink could do the difference. However it is depending to the application. So, all solutions are good. One solution is better for one application and another for other. You can use below of our PiCoolFAN4 heatsink and keep the FAN running on low speed (means low noise). I will check soon if we can find a good source of low cost heatsinks to include to PiCoolFAN4 and combine both solutions in one. The low cost is important, we keep the retail price at 12.49 EURO.
On my opinion the Raspberry Foundations done an excellent work (again) as equipped system with protection when overheated, as you know. It is not possible to have everything with such small amount of money (fast CPU, a lot of memory, USB C, USB 3, 4K etc). You loose something and win something. You are not dissing at the Raspberry foundation guys, I understand you. However, always "something" can be added - RTC, FAN, UPS, and many many extra featuring HATs. This make the Raspberry Pi so powerful and popular.
Kind Regards
PiMaster
www.pimodules.com

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yoyojacky
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Re: Raspberry Pi 4 temperature

Thu Jul 25, 2019 6:45 am

Hi guys,
I've got an ICE tower cooling fan for my raspberry Pi 4B.
https://www.ebay.com/itm/173962045147
and the temperature can be reduce almost 30°C
when I using stress -c 4 or sysbench, I found that the temperature will remain in +/- 44 °C ,
and it works fine~

Drifting by riding a donkey~

jahboater
Posts: 4928
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Re: Raspberry Pi 4 temperature

Thu Jul 25, 2019 7:07 am

yoyojacky wrote:
Thu Jul 25, 2019 6:45 am
Hi guys,
I've got an ICE tower cooling fan for my raspberry Pi 4B.
https://www.ebay.com/itm/173962045147
and the temperature can be reduce almost 30°C
when I using stress -c 4 or sysbench, I found that the temperature will remain in +/- 44 °C ,
and it works fine~
What does the temperature rise to when you run this for an hour or so?

Code: Select all

wget https://raw.githubusercontent.com/ssvb/cpuburn-arm/master/cpuburn-a53.S
gcc -o cpuburn-a53 cpuburn-a53.S
./cpuburn-a53

RonR
Posts: 753
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Re: Raspberry Pi 4 temperature

Thu Jul 25, 2019 8:28 am

jahboater wrote:
Thu Jul 25, 2019 7:07 am
What does the temperature rise to when you run this for an hour or so?

Code: Select all

wget https://raw.githubusercontent.com/ssvb/cpuburn-arm/master/cpuburn-a53.S
gcc -o cpuburn-a53 cpuburn-a53.S
./cpuburn-a53
https://www.amazon.com/Raspberry-iUnike ... 01LXSMY1N/

[no heat sinks used]

RPi 4 / 4GB

idle: 40 C

cpuburn: 65 C

No: Power Under Voltage / ARM Frequency Capped / CPU Throttled / Soft Temperature Limit

gsgs
Posts: 134
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Re: Raspberry Pi 4 temperature

Thu Jul 25, 2019 9:02 am

1040 kn/s stable for days running stockfish with fan
( presumably a bad compile , obtained with apt-get install stockfish)

without fan it goes down to 740kn/s after 1-2 hours.

I'm waiting for Android, so I can run the optimized
C-Fish compiles in Droidfish, which gave 2500 kn/.s
on the odroid-n2

The pi3b starts at 540 kn/s , going down to 400kn/s without fan

I have no case to fasten the fan, so I put it on 4 small polystyrole feet,
(over the heatsink)
maybe a rubberband had been easier ?!

just one of these $1.50 fans at ebay

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RPIgoodSBC
Posts: 126
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Re: Raspberry Pi 4 temperature

Thu Jul 25, 2019 10:49 am

Some data about new flirc case to raspberrypi 4...
Without any case, in 26-27C ambient, I got a naked raspberry pi to nearly 90C in 5-10 minutes. Okay great. Now with the Flirc case, I get it to 80C in 25 minutes. I saw the temp hang around 80C +/- 2C for 30 minutes. Seems like we hit steady state, but I think we can do better.

So we started studying the design, the gap, and the thermal material, and simulated. I ordered some new thermal pads and did some more tests that looked great. I got some arctic cool pads off amazon with a much higher thermal conductivity, and started testing.

In my lab/warehouse 26-27C which is really hot, it took 90 minutes of cpu burn before it got to 80C. Ambient matters. I ran another test on Monday, where it was 24-25C, and in 3 hours, it never went above 77C.
http://blog.flirc.tv/index.php/2019/07/ ... -shipping/

I have ordered an Armor case by geekworm that I believe is the best no fan solution to rpi4.
Last edited by RPIgoodSBC on Thu Jul 25, 2019 10:57 am, edited 1 time in total.

jamesh
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Re: Raspberry Pi 4 temperature

Thu Jul 25, 2019 10:57 am

I think it's worth mentioning that cpuburn is a pathological case, you will never get to that level of usage under normal circumstances. So if you can keep below threshold with that running, the normal use case will be well inside the thermal limits. Producing a system to keep the device cool when using cpuburn might be overkill for most people.
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RPIgoodSBC
Posts: 126
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Re: Raspberry Pi 4 temperature

Thu Jul 25, 2019 11:02 am

jamesh wrote:
Thu Jul 25, 2019 10:57 am
I think it's worth mentioning that cpuburn is a pathological case, you will never get to that level of usage under normal circumstances. So if you can keep below threshold with that running, the normal use case will be well inside the thermal limits. Producing a system to keep the device cool when using cpuburn might be overkill for most people.
Yes I am agree with you but to me put the heat on maximum is a proof that on any circunstance the pi is thermal ok.
Some people can use programs that need 100% CPU on long time, it's not my situation but others can need 100% cpu on long time for any reason.
To me at the moment the best and more elegant solution is the armor case.I have ordered one and I waiting to arrive.

jahboater
Posts: 4928
Joined: Wed Feb 04, 2015 6:38 pm

Re: Raspberry Pi 4 temperature

Thu Jul 25, 2019 11:09 am

jamesh wrote:
Thu Jul 25, 2019 10:57 am
I think it's worth mentioning that cpuburn is a pathological case, you will never get to that level of usage under normal circumstances. So if you can keep below threshold with that running, the normal use case will be well inside the thermal limits. Producing a system to keep the device cool when using cpuburn might be overkill for most people.
Exactly.

With just a small stick-on passive heat sink costing £2.50, my overclocked Pi4 reaches around 76C to 77C after an hour of cpuburn.

Therefore I can confidently say that my Pi4 will never throttle under any type of workload.

A very pleasing result, and surprisingly, is better than the 3B+ despite being a lot more powerful.
Last edited by jahboater on Thu Jul 25, 2019 12:14 pm, edited 1 time in total.

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