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by martinrowan
Wed Sep 11, 2019 9:43 am
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 558
Views: 159846

Re: Raspberry Pi 4 temperature

Fans are the way to go IMO. Keep on a sane process, just provide cooling. Small fans are quiet, reliable, cheap. Case style heatsinks are even quieter, cheap and reliable, but get hot. James I know people are coming at this from different angles. I agree with what you are saying, but the issue for ...
by martinrowan
Tue Sep 10, 2019 9:15 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 558
Views: 159846

Re: Raspberry Pi 4 temperature

jamesh wrote:
Tue Sep 10, 2019 8:57 pm
Recent (today) change to bootloader has a tweak to SD RAM timings which will give a slight power saving at idle, which will help very slightly with temperatures.
James is that released, or just internal change being tested?
Thanks
Martin
by martinrowan
Fri Sep 06, 2019 6:12 am
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 558
Views: 159846

Re: Raspberry Pi 4 temperature

Can you test CPUBurn on that aluminum radiator case (without the fan)? CPUBurn will heat your system much more than stress does. To see what difference CPUburn made compared to stress, I left CPUburn running overnight and the maximum temperature was 66°C, compared to 63°C when using stress. So ther...
by martinrowan
Thu Sep 05, 2019 10:47 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 558
Views: 159846

Re: Raspberry Pi 4 temperature

Can you test CPUBurn on that aluminum radiator case (without the fan)? CPUBurn will heat your system much more than stress does. I'm currently testing another 3D printed case at the moment. But will look into CPUBurn. Though at the same time I think so long as the test is the same across all scenar...
by martinrowan
Wed Sep 04, 2019 11:47 am
Forum: HATs and other add-ons
Topic: ETA for Official POE Hat for 3B+
Replies: 66
Views: 12274

Re: ETA for Official POE Hat for 3B+

The easiest way is to use the command:

Code: Select all

dmesg 
to show the latest kernel messages. You can also run

Code: Select all

dmesg -w
and it will continuously show updates to the kernel log as you plug in devices or as you experience issues.
by martinrowan
Wed Sep 04, 2019 8:17 am
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 558
Views: 159846

Re: Raspberry Pi 4 temperature

For those that might be interested in looking at temperatures of the Pi 4 in various cases under varying CPU loads and looking at thermal throttling, I've just posted an update to my blog with my latest test results: https://www.martinrowan.co.uk/2019/09/raspberry-pi-4-cases-temperature-and-cpu-thro...
by martinrowan
Sun Aug 25, 2019 11:52 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 558
Views: 159846

Re: Raspberry Pi 4 temperature

Yeah avoid the official case unless your goal is to cook your Pi. See my blog for idle temps with a few different cases: https://www.martinrowan.co.uk
by martinrowan
Thu Aug 22, 2019 9:22 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 558
Views: 159846

Re: Raspberry Pi 4 temperature

I've just published a post looking at a number of cases including the FLIRC and some with active cooling. I've focused on idle temps to start with, follow up post on WiFi signal strength to follow: I might then look at some load testing scenarios if I can come up with a reasonable scenario which avo...
by martinrowan
Thu Aug 08, 2019 1:34 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 558
Views: 159846

Re: Raspberry Pi 4 temperature

Great to see the heat issues being discussed in the lastest Raspberry Pi Trading YouTube Video. Interesting video on the whole, but around 37:40 is where discussions around heat and reducing power consumption comes up:
http://www.youtube.com/watch?v=hyj-7mTnumI&t=37m40s
by martinrowan
Mon Aug 05, 2019 7:00 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 558
Views: 159846

Re: Raspberry Pi 4 temperature

From these temperature reports, I am beginning to wonder if my Pi 4 is frigid; not really. I am running with 2.4 WIFI, driving a 27" monitor at 1920 x 1080. The board is encased in a Smraza case with 3 heat sinks and a fan and at idle, it doesn't get above 32 degrees C. With a Fan and sufficient ve...
by martinrowan
Thu Jul 11, 2019 10:27 am
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 558
Views: 159846

Re: Raspberry Pi 4 temperature

... If you case it up, I would suggest a fan is the best option for best performance, although you don't NEED to have one if will make things faster. I disagree, James, Sorry. If you case it up in the fully enclosed Pi 4 Case and intend to try and use the Pi like a Linux PC with its dual displays, ...
by martinrowan
Tue Jul 09, 2019 5:24 pm
Forum: Troubleshooting
Topic: ICACLIENT and libxerces-c3.1 on Pi4
Replies: 9
Views: 943

Re: ICACLIENT and libxerces-c3.1 on Pi4

Just to confirm you haven't got your Pi 4 in a case have you? Just checking you're not hitting the thermal issues as covered in great depth in another thread.
by martinrowan
Sat Jul 06, 2019 10:06 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 558
Views: 159846

Re: Raspberry Pi 4 temperature

I spent some time today look at what Raspberry Pi 4 owners can do to keep the Pi 4 cool, especially if you want to use an enclosure.
https://www.martinrowan.co.uk/2019/07/c ... erry-pi-4/

Not sure if anyone cares or will find it useful. But thought I'd share.
by martinrowan
Sat Jul 06, 2019 4:04 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 558
Views: 159846

Re: Raspberry Pi 4 temperature

https://i.paste.pics/6802d0ce202d9eae3036ce2b3e9cb412.png I installed a small heatsink just on the CPU, the temperature dropped dramatically, though only briefly as soon the heatsink rose to the same temperature as the CPU. This is a Pi 4 installed in a modified Pi 3 case with the topmost cover and...
by martinrowan
Fri Jul 05, 2019 5:37 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 558
Views: 159846

Re: Raspberry Pi 4 temperature

More case and temperature updates. I bought another Pi 3 official case, and with the help of a Dremel I "adjusted it" to allow my Pi 4 to fit. Per https://www.raspberrypi.org/blog/raspberry-pi-4-on-sale-now-from-35/ https://www.raspberrypi.org/app/uploads/2019/06/4in3Case1-1-500x359.jpg With the ori...
by martinrowan
Tue Jul 02, 2019 5:52 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 - new VLI firmware issues
Replies: 69
Views: 17795

Re: Raspberry Pi 4 - new VLI firmware issues

Seeing your post earlier today with the new firmware. I decided to give it a try to see if my power usage dropped. As I was at work at the time I connected over my VPN to run an SSH session. I followed the instructions to install the updated firmware and rebooted. history 148 unzip vl805_update_0137...
by martinrowan
Tue Jul 02, 2019 6:34 am
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 558
Views: 159846

Re: Raspberry Pi 4 temperature

The A72 use more power because they are twice as powerful. Simple as that. Not sure why people would think that would not be the case. James, sorry I don't think it's as clear cut as you make out. A Pi 4 idling consumes more power than a Pi 3, even when running at a lower frequency and even when bo...
by martinrowan
Mon Jul 01, 2019 7:58 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 558
Views: 159846

Re: Raspberry Pi 4 temperature

Ok searching around I found some other sources: Raspi.tv Power measurements Core Electronics Pi3 vs Pi4 benchmarks Raspberrypi.org Benchmarks All these sites, including raspberrypi.org, show the significant power usage increase between Pi 3 and Pi 4. Indicating this is normal and expected. So really...
by martinrowan
Mon Jul 01, 2019 7:17 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 558
Views: 159846

Re: Raspberry Pi 4 temperature

Might be some mileage in dropping the ARM idle frequency, in config.txt arm_freq_min=300 or arm_freq_min=150. If anyone want to see if that makes much of a difference might be worth a go. Tiny performance hit as the CPU ramps up when started to load, but in my testing in the open air, seemed to get...
by martinrowan
Mon Jul 01, 2019 5:40 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 558
Views: 159846

Re: Raspberry Pi 4 temperature

Again, depends on definition of idle. Booted to console? Booted to desktop? Got any background task runnings? Using 4kp60? Not that I have specific figures, but could generate some. Per my blog post , my testing method was to boot both a Pi 3 and a Pi 4 to a Desktop, tested with and without 4k enab...
by martinrowan
Mon Jul 01, 2019 10:32 am
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 558
Views: 159846

Re: Raspberry Pi 4 temperature

When idle and using onDemand cpu governor the Pi 4 was running at just 600MHz already.
by martinrowan
Mon Jul 01, 2019 8:04 am
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 558
Views: 159846

Re: Raspberry Pi 4 temperature

Again, depends on definition of idle. Booted to console? Booted to desktop? Got any background task runnings? Using 4kp60? Not that I have specific figures, but could generate some. Per my blog post , my testing method was to boot both a Pi 3 and a Pi 4 to a Desktop, tested with and without 4k enab...
by martinrowan
Sun Jun 30, 2019 9:19 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 558
Views: 159846

Re: Raspberry Pi 4 temperature

I've spent some time today investigating the differences between my Pi 3 and Pi 4 both when enclosed in their respective official cases. As this thread indicates the Pi 4 is a toasty board in comparison to it's previous incarnation. As the power draw has increased from 2.5W to 3.8W when idle, this >...
by martinrowan
Sun Jun 30, 2019 8:17 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 558
Views: 159846

Re: Raspberry Pi 4 temperature

I agree at the moment it looks like the Pi4 will need some form of active cooling if it's going to be used in an enclosurre.

I honestly can't see how their Desktop Kit would work without throttling: https://thepihut.com/products/raspberry ... 4004440126
by martinrowan
Wed Jun 26, 2019 9:37 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 558
Views: 159846

Re: Raspberry Pi 4 temperature

Wow Peter, so Pi3 B+ ~ 50°C, Pi4 ~ 63 °C in similar cases, heck of a jump. I have Pi3 Official Case and a USB-C power meter arriving tomorrow. So will look at temperatures and current draw between the two. If this sort of jump is the norm for the Pi4, the new fully enclosed official case for the Pi4...

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