seven.7777777s

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  1. What test bench program, would you recommend, that will will place all 6 processor cores at or close to 100% for over 10 minutes?
  2. The same on all 4 boards, I am using cables rated at 5V 4A, two different brands and the cable that came with the supply. When I check the Amperage going into the cables it peaks at 2.85 A 5.1V from te supplies. One supply was purchased at Amazon with the 5V 4A supply, three other 5V 4A supplies were purchased from China. They are the same power supply, just the ones purchased from China are labeled in Chinese characters.
  3. I tried setting the MAX SPEED @ 1992000, it crashes after about 4 minutes with the temp @ 43 C cat /etc/default/cpufrequtils # WARNING: this file will be replaced on board support package (linux-root-...) upgrade ENABLE=true MIN_SPEED=408000 MAX_SPEED=1992000 GOVERNOR=ondemand I am running 2 x 2gb & 2 x 4GB boards with 5V 4A power supplies with copper shimmed heat sinks and they will run for days at 1800000 This is not a heat issue, it's a stability issue running BOINC at that speed with this OS
  4. I received shims and added a 20 x 20 with 1.2 thickness and thermal paste, to each NanoPi M4 the temperature is now at 45c with a full load. I edited /etc/default/cpufrequtils & changed the max speed setting and rebooted to keep the two big cores at 1.80GHz MAX_SPEED=1800000 Then rebooted Dual fans attached to the heat sink help. I am using ANVISION 2-Pack 40 x 40 x 10mm 4010 Dual Ball Bearing DC 5V USB Brushless Cooling Fan UL CE YDM4010B05 https://www.amazon.com/gp/product/B074YJH3P9/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1 & a battery backup for the RTC LeFix Replacement CMOS RTC Battery with Cable(2 Pin 2Wire) for HP Compaq G50 G56 G60 G62 G70 G72 CQ40 CQ50 CQ56 CQ60 G62 CQ62 G56 CQ56 CQ72 https://www.amazon.com/gp/product/B07DCP26N3/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1 Standoffs to raise the fans and heat sink can be created using 4 x M3 Hex Socket Head Cap Screws in 25MM to 50MM length, search on Amazon for these is below https://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Delectronics&field-keywords=M3+Hex+Socket+Head+Cap+Screws+in+35MM+length The fans are attached to the heat sink using M3 x 12 mm Zinc-Plated Phillips Pan-Head Machine Screw, these are available at Home Depot as well as Amazon https://www.homedepot.com/p/Everbilt-M3-x-12-mm-Zinc-Plated-Phillips-Pan-Head-Machine-Screw-3-per-Bag-802718/204282659
  5. Thanks for the feedback, I ordered shims, I will post the results when they arrive
  6. @dogshome Thanks for the tips, The load is from BOINC with tasks from seti@home https://setiathome.berkeley.edu/ Installing BOINC on Ubuntu https://boinc.berkeley.edu/wiki/Installing_BOINC_on_Ubuntu
  7. Here's a screen shot of the load presented to Armbian_5.65_Nanopim4_Ubuntu_bionic_default_4.4.162_desktop where I can run the cores at a higher level than on friendlydesktop-bionic-4.4-arm64-20180921.
  8. Thanks for the tips The load is from BOINC with tasks from seti@home Installing BOINC on Ubuntu https://boinc.berkeley.edu/wiki/Installing_BOINC_on_Ubuntu
  9. Screen shots from rk3399-sd-friendlydesktop-bionic-4.4-arm64-20180921' on a 32GB Samsung EVO Plus microSDXC UHS-I card. running BOINC / seti@home. This image was updated and upgraded to the latest version available this morning. At this point I am reasonably certain that the instability I am experiencing with BOINC is due to issues with the manner in which the Rockchip RK3399 CPU has been implemented in the OS. The ''Armbian_5.65_Nanopim4_Ubuntu_bionic_default_4.4.162_desktop being more stable under heavy load than the ''rk3399-sd-friendlydesktop-bionic-4.4-arm64-20180921. I ameliorated the known power and cooling issues; the remaining variable is the OS build.
  10. OK, I obtained a 5v 4A power supply and cables rated for 5V 4A. I also added supports using , (uxcell 50pcs M3 10+6mm Male Female Thread Nylon Hex Standoff Spacer Screws PCB Pillar White), see attached picture. The temperatures are in the 53C to 60C range. The board's electrical usage can burst up to 2.85A @ 5.1V Running 'Armbian_5.65_Nanopim4_Ubuntu_bionic_default_4.4.162_desktop' on an 32GB or 128GB Samsung microSDXC UHS-I card. I was able to successfully install Docker CE and create a swarm, CPU cores are fine un-throttled until I start running BOINC tasks. A stable environment running BOINC's Seti@home requires me to throttle the CPU at cpufreq-set -c0 -u1.42GHz cpufreq-set -c1 -u1.42GHz cpufreq-set -c2 -u1.42GHz cpufreq-set -c3 -u1.42GHz cpufreq-set -c4 -u1.80GHz cpufreq-set -c5 -u1.80GHz Running 'rk3399-sd-friendlydesktop-bionic-4.4-arm64-20180921' on an 32GB Samsung microSDXC UHS-I card. I was unsuccessful in installing Docker CE A stable environment running BOINC's Seti@home requires me to throttle the CPU at cpufreq-set -c0 -u1.20GHz cpufreq-set -c1 -u1.20GHz cpufreq-set -c2 -u1.20GHz cpufreq-set -c3 -u1.20GHz cpufreq-set -c4 -u1.61GHz cpufreq-set -c5 -u1.61GHz I will be experimenting with some copper heat sink shims and thermal paste to reduce temps. I am still working on getting seti@home/BOINC to run in Docker across a swarm. The instructions that are out there will require me to learn more in order to successfully implement them.
  11. I received a Drok Model UM25 tester, and started checking the voltage and amperage used. I noticed that the NanoPi M4 when running at between 98% and 100% on all 6 cores draws a little over 5.1V and between 1.9A to 2.2A, This is getting close to the maximum of 5A and 2.5A that the cable, (Anker Powerline+ II USB-C to USB-A 2.0 Cable (3ft)), and power supply, (Anker 60W 10-Port USB Wall Charger), are rated. I shut down the 7 Raspberry PI 3B + devices also on the power supply and watched the NanoPi M4 use over 5.3V and 2.59A then reboot. I looked up the specs for the NanoPi M4, it needs 5V 3A The RaspberryPi 3B+ needs 5V 2.5A, (which is where the power supply and cables I am using are rated) I ordered a 5V 4A power supply and a cable rated for 4A. Until they arrive I an running the NanoPi M4 at 1.42GHz and 1.80GHz using the following commands cpufreq-set -c0 -u1.42GHz cpufreq-set -c1 -u1.42GHz cpufreq-set -c2 -u1.42GHz cpufreq-set -c3 -u1.42GHz cpufreq-set -c4 -u1.80GHz cpufreq-set -c5 -u1.80GHz It is now using 5.2V between 1.61A to 1.82A and does not reboot and the temp is showing 53C
  12. Thanks, I will check voltage, as that looks like the most likely cause.
  13. Running the Lubuntu supplied by the board vendor I was able to run BOINC for over 24 hours and the temp with a single fan was about 60C; however I had no success installing Docker CE. Running Armbian With a single fan running BOINC the board is shutting down after about 20 minutes. I was able to successfully install Docker CE and attach the 7 Raspberry Pis as nodes.. How would you recommend resolving this?
  14. Without extra cooling fans the Nano-Pi M4 board is exceeding 75C and shutting itself down. Thanks for the links to articles, I will read them.