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About NicoD

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  1. NicoD

    NanoPI M4

    That doesn't seem normal to me. I see no reason why there should be power on that output. I think @TonyMac32 knows more about these things. Is it normal the voltage is passed thru the i/o output of an hd enclosure? I can imagine that you could power the enclosure with that usb-c connector. So maybe the 5V there is open both ways? I'm just guessing. I think it doesn't start the sbc because there's nothing trying to read the hard drive. So it doesn't see it's connected. Once turned on, the sbc communicates with the hd, so it's turned on. And so the 5V is shared too. I can be completely wrong. The more knowledgeable people will know more.
  2. NicoD

    NanoPI M4

    You can power the board with 5V on the gpio`s and on the usb-c. So from the moment there is sufficient power on the 5V it gets powered. But that a hard drive is powering it seems odd to me. How do you power the HDD? With a split usb cable? Is it in an enlosure? Maybe soething wrong with the power supply of the enclosure, a broken diode or so???
  3. NicoD

    NanoPI M4

    That hat is specially for this board. I'll order it when it's out. For NAS this board is perfect. With an external hd with usb3 or with that sata hat.
  4. NicoD

    NanoPI M4

    See if this is the right form factor for your use. Maybe you could benifit on a m.2 slot, PCIe slot. Then you can go for another RK3399 board. NanoPC-T4, RockPro64, Orange Pi 3399, ... This is for me the greatest sbc ever. I can't find many faults in it. I think it's going to get a lot of support since many will RK3399 boards will be sold. I need a 5V board that I can power with my power banks(max 2.4A). I want it fast, and I need to be able to cool it. So all my boxes are crossed here. You will use it for something else probably, so see if it's the right choice for you. All the RK3399 boards perform the same. Greetings
  5. NicoD

    Powering through micro USB

    That's exactly what happened to my first Tinker. I was so stupid to buy another one
  6. The problem was my cable. I'm sorry for the confusion. I've tried again with the short cable they gave with it, and it's a lot better. 1A load and cpu maxed in Armbian makes it sink 0.4V instead of 1V. A huge difference. I should have seen it earlier. The cable was too short to put the M4 on my table with it... Sorry. Only issue is that it reached 85°C without a fan. But that's only after +14minutes full load. People who max these things should know to use a fan. Cheers
  7. NicoD

    NanoPI M4

    Hi all. The undervoltage problem was a bad cable. It's a lot more stable with the original cable. I've finished my review video about the NanoPi M4. Again with a great working Armbian. Thank you to everyone who worked on Armbian. Great job. Greetings. NicoD
  8. I was using 2 powermeters. The voltage at the psu was always stable at 5.15V. When at 2A it's 5.10V. Now doing a blender test with my 7" display attached to the usb. The voltage is 5.05V at 2.8A at PSU. Voltage on the USB 4.05V. I'll let you know if there's a performance hit like this. I haven't seen any instabilities because of it like with the rpi. Edit: No performance hit with an undervoltage on 5V.
  9. I'll see into that. I know it all costs a lot of time and work. And you guys do a great job with what you all do. I wished I had the Linux knowledge you guys have so I could do more. I used to be a programmer, and with Windows I can do what I want. But I can't seem to get enough insight in Linux to know what I do. I only work with linux for 2years. I hope it will improve. Here are the results of Armbian Bionic. Only with a 0.7A stable load of my 7" display. And the no load on usb and max load on cpu says enough. 4.44V. The more current the board draws, the lower the voltage. So I think a resistance problem? Armbian Bionic/Stretch No load on USB - no load on CPU = 5.00V 0.45A @ PSU max load on CPU = 4.44V 2A @ PSU with stable voltage 5.10V 0.7A load on USB - no load on CPU = 4.60V 1A max load on CPU = 4.10A(lowest 4.05A) 2.6A
  10. Yes. The 4A charger and the cable they gave. I also tried another usb-c cable. @hjc did a check on his M4 and saw the same behaviour. Only with 1 network adapter connected. For the board's safety 1.8Ghz/1.4Ghz would be a good idea. But it hurts the performance a lot. Armbian Bionic blender 1h13m50s kdenlive 41m01s Armbian Stretch Lubuntu armhf Lubuntu arm64 blender 1h28m13s 49m21s A bit a shame it goes from 1.8 to 2Ghz. Maybe 1.9Ghz-1.5Ghz/1.9Ghz-1.4Ghz would have been enough to not overheat. It would be good if people could easily change between 1.8Ghz/1.4Ghz - 2Ghz/1.5Ghz. With a fan it doesn't go over 65°C, but I know many people will not use a fan.
  11. I thought the USB3 should be albe to give 2A? I got an email from friendlyElec where they say it's limited to 2A.(for all ports together) Even without a load on the usb it goes down a bit in Armbian when maxed out. The clock of 1.8Ghz/1.4Ghz they use is a difference of 0.5A maxed. 1.5A in their Lubuntu, 2A maxed in Armbian. Also the maximum temp after 30 minutes with their Lubuntu is 69°C. In Armbian it goes to 85°C after 14m30s and stays there. (all without a fan) I use a fan so I rather have the 2Ghz. But it does have some disadvantage. More undervoltage and a lot higher temps. I'll do the voltage tests again with Armbian and then give you the numbers. I lost them the first time. With 0.9A on USB as you say and maxed CPU it goes to 4V-4.3V. Doesn't seem a good voltage to power an hd or so. I'll also check if there is a noticeable performance difference when powering a small load. It is a 5V small form factor board. So it's more than expectable. It's still an awesome board. But know to not power anything with it. For that there's the T4 and others.
  12. @chwe Have you seen the posts about the undervoltage on the NanoPi M4? Undervoltage ---------------- Lubuntu 32-bit No load on USB - no load on CPU = 5.07V max load = 4.92V 1A load on USB - no load on CPU = 4.55V max load = average 4.33V lowest 4.26V 1.5A load on USB no load on cpu = 4.10V max load cpu = under 4V My devices stop working and cut the power Powerbanks only charge at 0.2A - 0.4A Armbian @ 2Ghz/1.5Ghz is worse. A load of 1A and max cpu load and it can dip under 4V Using multiple USB ports has the same result I don't know why it's undervolting so badly. I think the resistance overall is too big. Maybe the usb-c? The PSU seems very stable. It's 4A. Cheers
  13. NicoD

    NanoPI M4

    Thank you. That's very helpful. Do you still use another PSU? A very nice explenation. It is possible. But I rather think the resistance in the board is too big for a big current to go thru. The PSU is very stable. The higher the current the lower the voltage, looks like resistance to me. It's a small board at 5V, without voltage protection. I didn't expect it to handle a lot of current. I can be wrong...
  14. Here my temperatures with a small fan on the underside and some screws to raise it. As tkaiser said. It works better when the fan blows over a larger area. This works good enough. It's a great heatsink. But the downside is that it heats up the whole board. So I don't think it's healty to constantly run it at 85°C. I've done it for 1h for a test. The board smelled badly. I want do it again. With low loads it doesn't heat up quickly. Temperature --------------- Armbian Bionic/Stretch 64-bit 2Ghz + 1.5Ghz With fan idle 36°C With fan maxed 65°C No fan idle 40°C No fan maxed Throttles at 85°C after 14m30s Lubuntu armhf/arm64 1.8Ghz + 1.4GHz With fan idle 29°C With fan maxed 54°C No fan idle 42°C No fan maxed 69°C (after 30 minutes maxed)
  15. Hi all. I've discovered Vivaldi Browser for arm. A fork of Chromium. There is a armhf version and a arm64 version. Youtube playback with this is a lot better. I've tested it on the NanoPi M4. The same video in Chromium had 2/3 dropped frames. (10 frames/s) 1080p video With Vivaldi browser you get 1/3 dropped frames. (20 frames/s) A lot better experience. Here you can download it. Here the source where I found it. From Meveric @ Odroid. Also explanation of how to install. No wget, and change filename to the file you've downloaded for gdebi. Or use gdebi package installer.(not tested) I tried in armhf on the M4 in armhf Lubuntu, worked great. Also tried the arm64 in Armbian Stretch. Also great. I didn't find any posts about Vivaldi in the Armbian forum. I thought it could be helpful. Cheers