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by Rive
Sat Apr 09, 2016 3:09 am
Forum: General discussion
Topic: Cooling the Pi3 with a fan.
Replies: 74
Views: 15675

Re: Cooling the Pi3 with a fan.

I can run cpuburn-a53
all day long and the temp never exceeds 70

Run 15 min with this, then copy/paste:

I am just curious to see if you are throttling back or not.

Code: Select all

while true; do vcgencmd measure_clock arm; vcgencmd measure_temp; sleep 10; done& ./cpuburn-a53
by Rive
Sat Apr 09, 2016 2:33 am
Forum: General discussion
Topic: Cooling the Pi3 with a fan.
Replies: 74
Views: 15675

Re: Cooling the Pi3 with a fan.

MarkHaysHarris777 wrote: I'm noticing is that there is a wide variation in results depending on your board. The engineers pushed this board just a tad far... and the result is that slight manufacturing differences (chip variations) what-have-you means that the results are varying somewhat between u...
by Rive
Fri Apr 08, 2016 11:08 pm
Forum: General discussion
Topic: Cooling the Pi3 with a fan.
Replies: 74
Views: 15675

Re: Cooling the Pi3 with a fan.

My bad. I must be confused. So just for clarification, this does not say 21.7% core used at 78.98C temp?

Image
by Rive
Fri Apr 08, 2016 10:25 pm
Forum: General discussion
Topic: Cooling the Pi3 with a fan.
Replies: 74
Views: 15675

Re: Cooling the Pi3 with a fan.

Am i reading the core % usage correctly 21% cpu usage stock pi3, and you are hoovering at/hitting 80C? damn... and no case? Time ARM Core H264 Core Temp (Max) IRQ/s RX B/s TX B/s %user %nice %sys %idle %iowt %irq %s/irq %total Memory Free/Used(SwUse) ======== ======= ======= ======= =============== ...
by Rive
Fri Apr 08, 2016 9:49 pm
Forum: General discussion
Topic: Cooling the Pi3 with a fan.
Replies: 74
Views: 15675

Re: Cooling the Pi3 with a fan.

That's the problem of closed plastic boxes which prevent airflow. My RPi3 is not in a box, has a small heat sink from the PiHut and doesn't throttle any more even if it reach 400% CPU (for longer times, tested up to 40 minutes) Testing the pi3 without a case skews the thermal results (considering m...
by Rive
Fri Apr 08, 2016 8:22 pm
Forum: General discussion
Topic: Cooling the Pi3 with a fan.
Replies: 74
Views: 15675

Re: Cooling the Pi3 with a fan.

ric96 wrote:
...whats the voltage and current rating on that fan.
http://www.microcenter.com/product/4148 ... m_Case_Fan

12V, but currently powered off the GPIO 5V rail.
Rated Current: 0.25 A
by Rive
Fri Apr 08, 2016 7:22 pm
Forum: General discussion
Topic: Cooling the Pi3 with a fan.
Replies: 74
Views: 15675

Re: Cooling the Pi3 with a fan.

"Proof" to put your mind at ease.... $1 copper heat sink (eBay): (the original crap thermal adhesive removed/replaced) http://s15.postimg.org/tkkct0h7v/WIN_20160408_12_37_13_Pro.jpg Ambient 66F/67F ( 19C/20C ) $4 fan (micro center) powered from GPIO pins 4/6 attached to case top with Velcro: http://...
by Rive
Fri Apr 08, 2016 5:31 pm
Forum: General discussion
Topic: Cooling the Pi3 with a fan.
Replies: 74
Views: 15675

Re: Cooling the Pi3 with a fan.

Typical examples like you mentioned (running a youtube video inside chromium-browser and omxplayer additionally, which is rather useless) are far from reaching throttling temp. If you don't believe me, that's your problem, not mine. Regardless, the posted video seems to indicate otherwise (in regar...
by Rive
Fri Apr 08, 2016 4:22 pm
Forum: General discussion
Topic: Cooling the Pi3 with a fan.
Replies: 74
Views: 15675

Re: Cooling the Pi3 with a fan.

deleted
by Rive
Fri Apr 08, 2016 4:21 pm
Forum: General discussion
Topic: Cooling the Pi3 with a fan.
Replies: 74
Views: 15675

Re: Cooling the Pi3 with a fan.

I just added a $1 copper heatsink that i got from China on ebay (I of course removed the existing thermal adhesive/pad as it is junk, and replaced it). Thermal testing pi3, in official pi3 case, with fan on GPIO 4 and 6 pins (and small $1 copper heatsink with thermal compound on SoC) Ambient Temp (6...
by Rive
Fri Apr 08, 2016 1:30 pm
Forum: General discussion
Topic: Cooling the Pi3 with a fan.
Replies: 74
Views: 15675

Re: Cooling the Pi3 with a fan.

Testing the pi3 without a case skews the thermal results (considering most users will have it in an enclosed protective case (and more often than not, in the official case)). It doesn't skew anything, it just shows that you need a good airflow which most cases don't have. Boxes which are not comple...
by Rive
Fri Apr 08, 2016 12:33 pm
Forum: General discussion
Topic: Cooling the Pi3 with a fan.
Replies: 74
Views: 15675

Re: Cooling the Pi3 with a fan.

That's the problem of closed plastic boxes which prevent airflow. My RPi3 is not in a box, has a small heat sink from the PiHut and doesn't throttle any more even if it reach 400% CPU (for longer times, tested up to 40 minutes) Testing the pi3 without a case skews the thermal results (considering m...
by Rive
Fri Apr 08, 2016 11:50 am
Forum: General discussion
Topic: Cooling the Pi3 with a fan.
Replies: 74
Views: 15675

Re: Cooling the Pi3 with a fan.

... Even something as simple as watching YouTube videos and running omxplayer is enough to overheat a non-fan equipped pi3 and throttle it. ... This is nonsense. Even playing youtube videos inside the browser using software codecs only (possible in kweb and chromium) won't use more than 190 -250% C...
by Rive
Fri Apr 08, 2016 11:03 am
Forum: General discussion
Topic: Cooling the Pi3 with a fan.
Replies: 74
Views: 15675

Re: Cooling the Pi3 with a fan.

You should try the stress test with something a bit heavier - like cpuburn-a53. A user (with fan setup) on an overclocked pi3 and sdcard managed to keep it stable at 82°C/83°C with minimal throttling, and below the 85°C threshold. https://www.raspberrypi.org/forums/viewtopic.php?f=29&t=138840 Again...
by Rive
Fri Apr 08, 2016 10:50 am
Forum: General discussion
Topic: Cooling the Pi3 with a fan.
Replies: 74
Views: 15675

Re: Cooling the Pi3 with a fan.

Someone already did the pi3 fan test back in March or so. Even something as simple as watching YouTube videos and running omxplayer is enough to overheat a non-fan equipped pi3 and throttle it. You should try the stress test with something a bit heavier - like cpuburn-a53. A user (with fan setup) on...
by Rive
Fri Apr 08, 2016 10:38 am
Forum: Beginners
Topic: help me choose a browser
Replies: 2
Views: 537

Re: help me choose a browser

I use Google Chrome (Chromium) browser on Raspbian Jessie.

Streams YouTube ok in normal & theatre mode (long as you don't set it for hd (auto 360p/480p), and gpu memory is 264mb)

See: viewtopic.php?f=29&t=138840
by Rive
Fri Apr 08, 2016 10:30 am
Forum: Windows 10 for IoT
Topic: sd card with windows 10 core installed won't boot
Replies: 4
Views: 974

Re: sd card with windows 10 core installed won't boot

Link expire: 4/9/2016 10:28:31 AM UTC

Win10 IoT 14295 build:
http://software-download.microsoft.com/ ... 1d7f0360b0
by Rive
Tue Apr 05, 2016 7:28 pm
Forum: General discussion
Topic: I (partially) burned my Raspberry Pi 3
Replies: 24
Views: 6162

Re: I (partially) burned my Raspberry Pi 3

You need a fan If you plan to run overclocked especially if you are using an enclosure/case. when the heat can not escape to anywhere off the case/enclosure, then even a fan will not help alot. (or should i say if no cool air can reach the heatsink to transport the heat away...) Many $5-$8 fan capa...
by Rive
Tue Apr 05, 2016 2:47 pm
Forum: General discussion
Topic: I (partially) burned my Raspberry Pi 3
Replies: 24
Views: 6162

Re: I (partially) burned my Raspberry Pi 3

Thank you for the "stress" test options. But I will stress my SOC not any more as it runs nicely for my purposes with 1,28Ghz as it is. (Only wanted to point out, not to run it without heatsink when overclocked) I don't think the hotsink is all that critical. From everything i have read posted by o...
by Rive
Tue Apr 05, 2016 2:31 pm
Forum: General discussion
Topic: Cups & HP Business Inkjet 1200
Replies: 4
Views: 1511

Re: Cups & HP Business Inkjet 1200

for HP, try:

Code: Select all

sudo apt-get install hplip
sudo hp-setup -i
by Rive
Tue Apr 05, 2016 2:27 am
Forum: Wanted
Topic: call me lazy, here's $50 via paypal
Replies: 3
Views: 1751

Re: call me lazy, here's $50 via paypal

stderr wrote:
dave58701 wrote:call me lazy, here's $50 via paypal
I'm not entirely sure that's the right word.
"cheap"?
by Rive
Tue Apr 05, 2016 12:20 am
Forum: General discussion
Topic: I (partially) burned my Raspberry Pi 3
Replies: 24
Views: 6162

Re: I (partially) burned my Raspberry Pi 3

i think I can confirm some damaging of the soc by overheating: On my overclocked Pi3 I also saw some frequency degradation after running accidently without heatsink. Before I could run 1300 mhz, overvoltage+2 stable with Wlan enabled, afterwards only 1280 mhz and needed the overvolting also with 12...
by Rive
Mon Apr 04, 2016 5:29 pm
Forum: Troubleshooting
Topic: Rpi3 status leds
Replies: 10
Views: 2539

Re: Rpi3 status leds

This is the one I am using. $9 at Micro Center: 5.25V 2.4A micro USB power adapter: http://www.microcenter.com/product/460735/525VDC_24A_Regulated_AC_Power_Adapter_-_48_Cord_with_Micro_USB_Plug You can also get it online at MCM Electronics for $6: http://www.mcmelectronics.com/product/28-19336 Chee...
by Rive
Mon Apr 04, 2016 4:32 pm
Forum: Troubleshooting
Topic: Rpi3 status leds
Replies: 10
Views: 2539

Re: Rpi3 status leds

This is the one I am using. $9 at Micro Center:

5.25V 2.4A micro USB power adapter:
http://www.microcenter.com/product/4607 ... o_USB_Plug


You can also get it online at MCM Electronics for $6:
http://www.mcmelectronics.com/product/28-19336
by Rive
Mon Apr 04, 2016 4:25 pm
Forum: Troubleshooting
Topic: Pi3 Bluetooth Issues -- Magpi 44
Replies: 11
Views: 2200

Re: Pi3 Bluetooth Issues

Even if you can get BT audio to work in general, my understanding is it still won't work for OMXPlayer (built in media player for the pi). AFAIK it should work with omxplayer -o local https://www.raspberrypi.org/forums/viewtopic.php?p=939769#p939769 oxmplayer sends audio directly to the hardware, s...

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