Theoretiker

Ok, i am giving up... something is absolutly wrong here... Lowered Fuse to 0,125mA fast, set CPU Clock to 1200Mhz, GPU on, USB on, reboot, stresstest... and it doesn't burn up. I don't get the clue. Maybe i will increase the DRAM Clockspeed and add some periphicals... Have fun! Greetings Chris

"As an example: We chose default Armbian settings for NanoPi NEO to ensure this board is not able to exceed 2W consumption when running with no peripherals connected. This resulted in CPU and DRAM clockspeed of just 480/408 MHz while booting (the first ~20 seconds). In normal operation we limit maximum CPU clockspeed to 912 MHz to stay below the 2W consumption barrier even in worst case scenarios." https://docs.armbian.com/Hardware_Allwinner-H3/ This looks like an answer... so we are again at 2W = 400mA@5V So i can choose 315mA but may be killed or 500mA to be something safe... and maybe bit more for periphical... so maybe 630mA is a safe Value. I will order some and just test it.

Hi tkaiser, thank you. Yes, V1 is a "bad"choice, but FriendlyARM didn't tell me that they will have powerissues when i ordered it. Bad thing to be one of the first ordering i think. And they didn't telll me that they will invent Heatsinks in future. Its not so much power overdooze that i am frightend about it. Less than my workstation does burn actually with this nonsense to discuss my own questions... Timeconsuming nonsense. Ahm, no i am not interessted at all in powerconsumption Things... just tried to make the powercircuit a bit more save and personallly i think this is a good attempt to make it saver, not to burn 15 boards while one issue. I thought that people here which are able to lower consumption, has seen some values in history and will remember in future... slightly remembering I am not a lazy guy... 39 years old and something helping in my part of things with Karmapoints and 471 of helping messages by myself. I think this is social community. But electric things aren't my favorite... i am not experienced with that and i don't want to be experienced with that. Don't get me wrong, i don't need you to tell me that i should search by myself. You are right, maybe i can find an answer. But i think its not an FAQ Question and i know you in my case especially for conspumption things on NanoPI ... so you are the person on this planet which have the most experience with that... especially on NanoPi but you don't answer. I don't get usable values. Ok... your choice. ---- Thank you, i know. I don't need any high clockspeeds but muuuch threads which are not getting the cpu very hot in case of its usage. Actually tempsensors shows between 28 and 45 Degree Celsius which is ok i think. Stresstesting with full clockspeed on SOC, RAM and IO was a bit badder at 79-85 Degrees Celsius on maximum fullspeed with bad stresstesting. But its no case around it and no fans too... i have no real probllems with heat actually but i will enhance with active cooling. Just need a fuse which is right in Dimension to burn up as fast as possible when consumption reaches the maximum possible. On CPUs its callled TDP... and on Pi this will be slightly higher because of Ram etc. This is the Vallue... maybe... I will measure myself... but if you think its bad to ask questions in a forum you should simply close it... i know some people which will ask everytime the same... and its bad behaviour... I just thought that there is someone out there which is able to answer such a simple question because he owns a NanoPi NEO and a measuring tool just to invest 5 golden Minutes to help. Thank you Anyway... i will post some pics when all is up and runnig... with best regards, Chris

Thank you, my mistake in math... And to be clear... yes... 400mA while booting... you are right... But I need a Value to buy a Fuse, at the shop they want to know what value in X Amps... I just don't want to burn 15 Boards with one which maybe will fire up... In this case the fuse should cut the powerline to reduce the damage by shorting GND. So the Value I need is slightly up the value a NanoPI NEO is able to drain maximum... 400mA-2A right? but i have no idea of real maximum a NanoPI NEO with armbian defaullt settings... is able to drain in regular usage... To be efficient i need to be as close as possible on the upper corner of max regular consumption. There are tons of messages... but most times it says minimum consumption and lowering and booting... I need answer to something like realword consumption with default settings... maybe i should go to the next TV Shop/Repair... maybe they can measure consumption... but i thought somebody already measured powerconsumption on NanoPi NEO... I don't want to use Polyfuses because they are slow in comparsion to extra flux fuses... i need cutting power as fast as possible...

Hi, i am actually a bit confused. I thought that a NanoPi Neo V1.0! which is set to 1200Mhz Clockspeed, enabled USB and enabled GPU should burn a additonal 1A (fast) Fuse while doing a 100% Stresstest. It doesn't. Just get more speed and heat... I added an additional Wlan Stick for more powerconsumption... but this doesn't help either. In my opinion and the always stated "on 912Mhz" max 2 Watts... it should kill the 1A on 1200Mhz no? 5V 2W = 1A ... I do a small cluster here and i want to save the GND Rail for shortage to save the other nodes if one Node is melted down and cause shortage. I thought a 1A Fuse has to burn up... but reality is kicking my a** actually. Would be great to get a hint... whats going wrong here. Thank you!

Wow tkaiser, thank you! That link is interessting and it looks to be the information i had a look for. So "default maximum conssumption" is the maximum possible of a legacy armbian Image right? 2000mW so 400mA maximum on any case? Crazy... thought about 2 Amps... o.O Just with the disadvantage of 33% Performanceloss, i think this is a good atttempt. In my case i will run many threads which will get 100% usage on the SoC. mmh, about booting... i can configure a parrameter which will slowdown the bootprocess... thats great... so 15 different parameters will get me an the PSU safe it seems. I have to dig further into that things it seems. I am a PHP Guy and have no deep knowledge on Linux or bootscripts a.s.o. so it is a bit difficult to understand all that details. Thank you for your very great work tkaiser... really great! btw. i ordered also V1.0 ... but got now the heatsinks (1 Month later) and i have connected AWG20 wires to the debug port... a.s.o. next step is to power that thing up... waiting since first posts on CNX... i want to see them work ... Your information and work is worth a big THANK YOU! Greetings Chris PS: Thank you Arox for answering, too.

Sorry to ask that, i know there are tons of powerconsumption-discuss an optimization, and tewaking but i got lost. I just need to know how much Ampere a Nanopi NEO drains on fullload (4Cores), connnected with ethernet, no additional USB Hardware in default (no special h3consumtion). Especially boooting (i think armbian is throtteling on boot right?) is also very interessting. I need to buy a Powersupply which is sufficient for 15 NanoPi Boards in min and max consumption. Got very confused in reading the threads... But it seems 5V/2A is just a "be save in every situation" thing, and i think there is a "window" of throtttled booting and full-load 4 Core... So would be great to get a easy to understandable answer for min/max Amps on Armbian default on Nanooppi NEO (btw. 256MB) with Ethernet on any case... Would be great to get an answer. Thank you! With best regards, Chris

Thank you zador.blood.stained and TKaiser! @TKaiser, does the M3 Distanceplaceholder on your NanoPI NEO Clusterpics (Sunxi-Wiki) may do any shortage? Are M3 Distanceplaceholders save to use in any cases? Theoretiker

Hi Christos, i am in the same crazy situation... first tests... maybe i can help you with some info... and we get this solved together... 1. I think you should update and upgrade the available distro. (http://docs.armbian.com/User-Guide_Getting-Started/#how-to-update) 2. Then you should just install the actual kernel which is simply availabe via apt-get install. (http://www.armbian.com/kernel/) But after rebooting my NanoPI Neo doesn't answer anymore on SSH Terminal... So i miss something too... I don't think that there is a really actual readymade image actually simply for download... Greetings Chris