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grep

Orange Pi Prime: USB problem under heavy I/O (and CPU) load

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PART1 (hope a will have enough patience to write other parts)

HDD has additional "power" connection to USB-charger (via Y-USB-cable) 

All measurements made on screw terminals of PSU with multimeter (image attached)

 

TL;DR: PSU becomes unstable after a while on heavy load scenarios according to measurement on screw terminals: after 40 minutes of work voltage jumps to 20V, i.e. we have OVERVOLTAGE and after that "translation fault" and "USB device reset" ( http://sprunge.us/FKMO )

remark: i can't measure "all the time", because the PSU and board are located inside(board) and outside (PSU) "electric closet", so i had to "run to PSU, measure, and run back to computer".

 

@tkaiser @Igor @zador.blood.stained @guidol have you ever seen something like that ? 

 

1. Default, no load: 5.14V

2. 10 min after 1104MHz: 5.17V 

3. 20 min after 1104Mhz: 5.15V

Spoiler

17:46:55: 1104MHz  6.07  17%   2%   9%   0%   5%   0% 39.2°C  0/8
17:47:00: 1104MHz  5.83  77%  18%  27%   0%  29%   1% 37.8°C  0/8
... 10 minutes after ...
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
17:57:01: 1104MHz  3.71  86%  11%  42%   0%  31%   1% 39.4°C  0/8
17:57:06: 1104MHz  3.66  77%   8%  46%   0%  19%   2% 40.2°C  0/8
17:57:11: 1104MHz  4.16  82%  19%  45%   0%  15%   1% 43.1°C  0/8
17:57:16: 1104MHz  4.15  77%  10%  51%   0%  14%   1% 40.9°C  0/8
... 20 minuter after ...
18:06:51: 1104MHz  4.03  72%   8%  51%   0%  10%   1% 42.7°C  0/8
18:06:56: 1104MHz  3.95  70%   7%  52%   0%   8%   0% 42.4°C  0/8
18:07:01: 1104MHz  3.87  69%   7%  54%   0%   6%   0% 41.9°C  0/8
18:07:07: 1104MHz  3.80  69%   8%  53%   0%   7%   0% 41.9°C  0/8

 

 

 

4. After stop all the processes for a couple of minutes / 1104MHz: 5.14V


 

Spoiler

Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.

18:09:46: 1104MHz  0.93  18%   2%   9%   0%   5%   0% 32.3°C  0/8
18:09:51: 1104MHz  0.85   0%   0%   0%   0%   0%   0% 31.8°C  0/8
18:09:56: 1104MHz  0.78   0%   0%   0%   0%   0%   0% 31.2°C  0/8
18:10:01: 1104MHz  0.72   0%   0%   0%   0%   0%   0% 32.8°C  0/8
18:10:06: 1104MHz  0.66   0%   0%   0%   0%   0%   0% 31.8°C  0/8

 

5. "Uncontrollable hell begin": Lots of IO and CPU-heavy processes (but CPU-overload causes drops in IO) @1152 MHz: 5.12V

6. 10 min after "Uncontrollable hell begin" @1152MHz:  5.12V

7. 20 min after "Uncontrollable hell begin" @1152MHz:  Flapping 5.11..5.12V (measurement took ~ 40 sec)

8. 30 min after "Uncontrollable hell begin" @1152MHz:  Still flapping 5.11..5.12V (measurement took ~ 1 minute)

9. 40 min after "Uncontrollable hell begin" @1152MHz:  INSANITY 6.2..8.7V (measurement took ~ 30 sec)

10. 42 min after "Uncontrollable hell begin" @1152MHz:  ABSOLUTE MADNESS 16.1..19.7V (measurement took ~ 30 sec) 

11. 45 min after "Uncontrollable hell begin" @1152MHz:  LOWERING 12.1..12.5V (measurement took ~ 30 sec)

12. ~50 min afer "Uncontrollable hell begin" @1152 MHZ: 5.13V and everything is dead: http://sprunge.us/FKMO 

 

Spoiler

 


Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.

18:14:25: 1152MHz  4.98  18%   2%   9%   0%   5%   0% 46.6°C  0/8
18:14:30: 1152MHz  5.38  99%  15%  80%   0%   0%   4% 44.8°C  0/8
18:14:35: 1152MHz  6.07  99%   7%  77%   0%  11%   2% 44.4°C  0/8
18:14:41: 1152MHz  6.31  81%   5%  38%   0%  36%   1% 37.5°C  0/8
18:14:46: 1152MHz  7.40  99%  20%  74%   0%   0%   4% 43.9°C  0/8
18:14:51: 1152MHz  8.65  94%  15%  63%   0%  13%   2% 41.7°C  0/8
... 10 minutes after ...
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
18:23:29: 1152MHz  9.90  93%   7%  51%   0%  32%   1% 43.1°C  0/8
18:23:34: 1152MHz  9.99  99%   9%  84%   0%   2%   2% 47.2°C  0/8
18:23:39: 1152MHz 10.63 100%  12%  84%   0%   0%   3% 46.0°C  0/8
18:23:45: 1152MHz 10.74  80%   8%  48%   0%  23%   1% 41.4°C  0/8
18:23:50: 1152MHz 10.44  81%  10%  39%   0%  30%   1% 42.5°C  0/8
18:23:55: 1152MHz 10.09  90%   7%  34%   0%  47%   1% 41.4°C  0/8
18:24:00: 1152MHz 10.16  93%   5%  21%   0%  65%   0% 36.2°C  0/8
18:24:05: 1152MHz  9.91  97%   5%  49%   0%  41%   1% 43.1°C  0/8
18:24:10: 1152MHz  9.67  87%   6%  47%   0%  32%   1% 41.9°C  0/8
18:24:15: 1152MHz  9.62  87%   6%  29%   0%  50%   1% 39.4°C  0/8
18:24:20: 1152MHz  9.41  88%   5%  32%   0%  48%   1% 40.4°C  0/8
18:24:26: 1152MHz  9.30  81%   5%  30%   0%  44%   1% 38.8°C  0/8
18:24:31: 1152MHz  9.11  81%   6%  30%   0%  44%   1% 38.7°C  0/8
18:24:36: 1152MHz  8.94  84%   6%  36%   0%  38%   2% 43.9°C  0/8
... 20 minutes after ...
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
18:33:44: 1152MHz  8.74  92%   3%  27%   0%  60%   0% 38.6°C  0/8
18:33:49: 1152MHz  8.68  94%   3%  30%   0%  58%   1% 38.5°C  0/8
18:33:54: 1152MHz  8.79  89%   5%  31%   0%  51%   1% 40.4°C  0/8
18:33:59: 1152MHz 10.65  98%   9%  72%   0%  14%   2% 45.9°C  0/8
18:34:04: 1152MHz 10.60  86%   6%  30%   0%  48%   1% 39.1°C  0/8
18:34:09: 1152MHz 10.55  83%   4%  28%   0%  49%   0% 37.4°C  0/8
18:34:15: 1152MHz 11.15  94%  13%  37%   0%  41%   2% 39.6°C  0/8
18:34:20: 1152MHz 11.38  84%  11%  28%   0%  42%   1% 38.4°C  0/8
18:34:25: 1152MHz 10.94  82%   9%  32%   0%  39%   1% 40.4°C  0/8
18:34:30: 1152MHz 10.55  90%   8%  44%   0%  35%   1% 41.7°C  0/8
18:34:35: 1152MHz 10.42  96%   6%  33%   0%  53%   1% 40.3°C  0/8
18:34:40: 1152MHz 10.55  94%   5%  59%   0%  27%   2% 43.4°C  0/8
18:34:46: 1152MHz 10.59  95%   6%  63%   0%  24%   1% 44.0°C  0/8
18:34:51: 1152MHz 11.26  99%   6%  89%   0%   0%   2% 45.9°C  0/8
18:34:56: 1152MHz 11.56  88%   8%  26%   0%  50%   1% 39.1°C  0/8
... 30 minutes after ....
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
18:43:35: 1152MHz 10.95  90%   5%  29%   0%  55%   0% 38.1°C  0/8
18:43:40: 1152MHz 10.79  85%   6%  30%   0%  47%   0% 38.6°C  0/8
18:43:45: 1152MHz 10.65  86%   5%  29%   0%  50%   0% 39.7°C  0/8
18:43:50: 1152MHz 10.68  93%   3%  28%   0%  59%   0% 39.0°C  0/8
18:43:55: 1152MHz 10.70  94%   9%  60%   0%  21%   1% 42.5°C  0/8
18:44:01: 1152MHz 10.32  93%   9%  46%   0%  37%   0% 42.2°C  0/8
18:44:06: 1152MHz 11.26  88%  21%  36%   0%  29%   1% 42.1°C  0/8
18:44:11: 1152MHz 11.80  90%   8%  53%   0%  25%   2% 43.1°C  0/8
18:44:16: 1152MHz 11.98  83%   7%  42%   0%  32%   1% 42.0°C  0/8
18:44:21: 1152MHz 12.22  77%   9%  29%   0%  37%   1% 35.8°C  0/8
18:44:26: 1152MHz 12.44  77%   8%  15%   0%  51%   1% 40.8°C  0/8
... 40 minutes after ...
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
18:52:58: 1152MHz  9.48  96%   9%  77%   0%   8%   2% 46.9°C  0/8
18:53:03: 1152MHz  9.12  98%   9%  77%   0%   9%   2% 45.6°C  0/8
18:53:08: 1152MHz  8.95  94%  15%  45%   0%  31%   2% 45.9°C  0/8
18:53:13: 1152MHz  9.28  83%   8%  31%   0%  42%   1% 39.1°C  0/8
18:53:19: 1152MHz  9.74  82%   8%  35%   0%  35%   2% 42.2°C  0/8
18:53:24: 1152MHz  9.92  94%   5%  69%   0%  16%   2% 42.8°C  0/8
18:53:29: 1152MHz  9.44  93%   9%  49%   0%  33%   1% 46.6°C  0/8
18:53:35: 1152MHz  9.57  97%   9%  71%   0%  13%   2% 46.7°C  0/8
18:53:40: 1152MHz  9.84 100%  11%  85%   0%   0%   2% 48.0°C  0/8
18:53:45: 1152MHz 10.26  94%   8%  68%   0%  16%   1% 45.3°C  0/8
18:53:50: 1152MHz  9.83  94%   9%  68%   0%  15%   1% 46.0°C  0/8
18:53:55: 1152MHz  9.41  96%   6%  54%   0%  33%   1% 45.7°C  0/8
18:54:00: 1152MHz  9.06  81%   3%   4%   0%  73%   0% 38.4°C  0/8
18:54:06: 1152MHz  9.69  91%   9%  51%   0%  28%   1% 45.9°C  0/8
18:54:11: 1152MHz  9.96 100%   8%  88%   0%   0%   2% 46.9°C  0/8
... 42 mins after ...
18:56:54: 1152MHz 10.01  84%   6%  49%   0%  26%   1% 43.8°C  0/8
18:56:59: 1152MHz  9.61  87%   8%  45%   0%  31%   1% 43.8°C  0/8
18:57:05: 1152MHz  9.48  90%   8%  57%   0%  23%   1% 46.2°C  0/8
18:57:10: 1152MHz  9.28  93%   7%  69%   0%  14%   1% 46.1°C  0/8
18:57:15: 1152MHz  9.18  90%   8%  46%   0%  34%   1% 45.3°C  0/8
18:57:20: 1152MHz  9.08  94%  10%  47%   0%  34%   2% 45.3°C  0/8
... 45 mins after ...
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
18:58:13: 1152MHz  9.32  95%   8%  67%   0%  17%   1% 46.1°C  0/8
18:58:18: 1152MHz  9.05  98%   8%  82%   0%   5%   2% 44.2°C  0/8
18:58:24: 1152MHz 12.73  38%   2%  11%   0%  24%   0% 36.1°C  0/8
18:58:29: 1152MHz 16.12  25%   0%   0%   0%  24%   0% 34.4°C  0/8
18:58:34: 1152MHz 19.23  30%   0%   0%   0%  30%   0% 35.0°C  0/8
18:58:39: 1152MHz 22.18  50%   0%   0%   0%  49%   0% 36.1°C  0/8
18:58:44: 1152MHz 24.88  50%   0%   0%   0%  49%   0% 33.0°C  0/8
18:58:49: 1152MHz 27.38  50%   0%   0%   0%  49%   0% 35.1°C  0/8
18:58:54: 1152MHz 29.67  28%   2%   0%   0%  25%   0% 34.7°C  0/8
18:58:59: 1152MHz 27.29   0%   0%   0%   0%   0%   0% 34.4°C  0/8
18:59:04: 1152MHz 25.11   0%   0%   0%   0%   0%   0% 31.7°C  0/8
18:59:09: 1152MHz 23.10   0%   0%   0%   0%   0%   0% 32.9°C  0/8
18:59:14: 1152MHz 21.25   0%   0%   0%   0%   0%   0% 34.4°C  0/8
18:59:19: 1152MHz 19.54   0%   0%   0%   0%   0%   0% 34.1°C  0/8
18:59:24: 1152MHz 17.98   0%   0%   0%   0%   0%   0% 34.8°C  0/8
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
18:59:29: 1152MHz 16.54   0%   0%   0%   0%   0%   0% 34.0°C  0/8
18:59:35: 1152MHz 15.21   0%   0%   0%   0%   0%   0% 32.1°C  0/8
18:59:40: 1152MHz 14.00   0%   0%   0%   0%   0%   0% 32.7°C  0/8

... dies ...
18:59:14: 1152MHz 21.25   0%   0%   0%   0%   0%   0% 34.4°C  0/8
18:59:19: 1152MHz 19.54   0%   0%   0%   0%   0%   0% 34.1°C  0/8
18:59:24: 1152MHz 17.98   0%   0%   0%   0%   0%   0% 34.8°C  0/8
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
18:59:29: 1152MHz 16.54   0%   0%   0%   0%   0%   0% 34.0°C  0/8
18:59:35: 1152MHz 15.21   0%   0%   0%   0%   0%   0% 32.1°C  0/8
18:59:40: 1152MHz 14.00   0%   0%   0%   0%   0%   0% 32.7°C  0/8
18:59:45: 1152MHz 12.87   0%   0%   0%   0%   0%   0% 34.5°C  0/8
18:59:50: 1152MHz 11.84   0%   0%   0%   0%   0%   0% 30.9°C  0/8
18:59:55: 1152MHz 10.89   0%   0%   0%   0%   0%   0% 31.2°C  0/8
19:00:00: 1152MHz 10.02   0%   0%   0%   0%   0%   0% 32.4°C  0/8
19:00:05: 1152MHz  9.22   0%   0%   0%   0%   0%   0% 34.1°C  0/8
19:00:10: 1152MHz  8.48   0%   0%   0%   0%   0%   0% 32.5°C  0/8
19:00:15: 1152MHz  7.80   0%   0%   0%   0%   0%   0% 33.6°C  0/8
19:00:20: 1152MHz  7.18   0%   0%   0%   0%   0%   0% 31.9°C  0/8
19:00:25: 1152MHz  6.60   0%   0%   0%   0%   0%   0% 34.8°C  0/8
19:00:30: 1152MHz  6.07   0%   0%   0%   0%   0%   0% 30.9°C  0/8
19:00:35: 1152MHz  5.59   0%   0%   0%   0%   0%   0% 31.3°C  0/8
19:00:40: 1152MHz  5.14   0%   0%   0%   0%   0%   0% 32.4°C  0/8
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
19:00:45: 1152MHz  4.73   0%   0%   0%   0%   0%   0% 32.5°C  0/8
19:00:51: 1152MHz  4.43   0%   0%   0%   0%   0%   0% 34.0°C  0/8
19:00:56: 1152MHz  3.75   0%   0%   0%   0%   0%   0% 31.9°C  0/8
19:01:01: 1152MHz  3.45   0%   0%   0%   0%   0%   0% 30.5°C  0/8
19:01:06: 1152MHz  3.17   0%   0%   0%   0%   0%   0% 31.5°C  0/8
19:01:11: 1152MHz  2.92   0%   0%   0%   0%   0%   0% 30.6°C  0/8
19:01:16: 1152MHz  2.68   0%   0%   0%   0%   0%   0% 32.7°C  0/8
19:01:21: 1152MHz  2.47   0%   0%   0%   0%   0%   0% 31.8°C  0/8
19:01:26: 1152MHz  2.27   0%   0%   0%   0%   0%   0% 33.6°C  0/8
19:01:31: 1152MHz  2.09   0%   0%   0%   0%   0%   0% 32.3°C  0/8
19:01:36: 1152MHz  1.92   0%   0%   0%   0%   0%   0% 32.4°C  0/8
19:01:41: 1152MHz  1.77   0%   0%   0%   0%   0%   0% 31.2°C  0/8
19:01:46: 1152MHz  1.62   0%   0%   0%   0%   0%   0% 31.9°C  0/8
19:01:51: 1152MHz  1.49   0%   0%   0%   0%   0%   0% 31.2°C  0/8
19:01:56: 1152MHz  1.37   0%   0%   0%   0%   0%   0% 30.9°C  0/8
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
19:02:01: 1152MHz  1.26   0%   0%   0%   0%   0%   0% 32.5°C  0/8
19:02:07: 1152MHz  1.16   0%   0%   0%   0%   0%   0% 30.1°C  0/8
19:02:12: 1152MHz  1.07   0%   0%   0%   0%   0%   0% 29.9°C  0/8
19:02:17: 1152MHz  0.98   0%   0%   0%   0%   0%   0% 33.5°C  0/8
19:02:22: 1152MHz  0.90   0%   0%   0%   0%   0%   0% 31.0°C  0/8
19:02:27: 1152MHz  0.83   0%   0%   0%   0%   0%   0% 28.6°C  0/8
19:02:32: 1152MHz  0.76   0%   0%   0%   0%   0%   0% 31.5°C  0/8

 

 

multimeter-psu.jpg

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Never turn that supply on again, and throw it in a dumpster.  Unless fire is something you're particularly fond of.  Get a mean-well, they are much better and not terribly expensive if you want to stick with an adjustable chassis supply.

 

The "flapping" was most likely high-voltage transients your meter wasn't fast enough to display.

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@TonyMac32 you know, the problem is that the first time i used another 5V/3A PSU ("standard black cube") but got the same symptoms multiple times ("usb device reset" and "translation fault"). Looks like it's time for PART2 with "black cube" .. (but in fact, this "dance with dragons" is a bit annoying: i just want it to work, but absolutely do not want to fight against "the army of undead boards and PSUs") :angry:

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Daamn .... unplugged the 1.7mm-jacked cable to make PART2-experiment with "standard cube psu", got cable in my hand and shocked ... THE SYSTEM IS STILL ONLINE (fan is working,  network led is blinking)! All the time it had some kind of DOUBLE-powering (USB charger via Y-USB-CABLE + 1.7mm jack from PSU). How is that possible at all ?

@tkaiser you was right, if the Y-USB-cabling is prohibited by USB specification than that is because of "fear of side electrical effects" that partially described in https://superuser.com/a/1022965 

@guidol  that's a lesson for both of us: i think starting from this day you definitely should not recommend to use Y-USB-CABLE (i.e. separate power for USB) to anyone, side-effects are absolutely unpredictable :(Take a look at the photo attached:

 - left one: HDD is powered via Y-USB-cable, 1.7mm jack is out, board is not powered

 - in the middle:  both 1.7mm & Y-USB-cable attached, board is powered on

 - right one: 1.7mm jack is out, but the board is still powered on, i.e. "powering the board through Y-USB-CABLE"

 

 

Looks like PART1 needs to be revised with "normal USB cable" and the same PSU.

 

Y-USB-PROBLEM.jpg

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2 hours ago, grep said:

but absolutely do not want to fight against "the army of undead boards and PSUs

But I'm sure you don't want to be part the walking dead cause you saved 2-5$ with a shitty PSU. I'm not sure where you're from, but here in switzerland PSUs with a metal case needs an earthing cable. Otherwise, the're not allowed.

 

30 minutes ago, grep said:

you was right, if the Y-USB-cabling is prohibited by USB specification than that is because of "fear of side electrical effects"

magic... :ph34r:

 

As @tkaiser said, you're wasting your time. I know this good, especially when I order things for a project from multiple shops in china and one peace arrives weeks later -  just wait until everything arrives to solve it properly and don't go for a shitty solution cause something isn't there. 

 

If you really want a 'proper' solution, I suggest something like an Odroid HC1 with their PSU. You get a proper powered SBC which is made for this use-case. I had an OPiPC+ as NAS for weeks (until the old 3.5'' HDD died) and it also worked without problems, but it can never compete against my HC1... 

  1. Throw away the shitty PSU
  2. Wait until your PSU from xunlong arrives. 
  3. Check if the voltage doesn't drop much when the disk spins up with this PSU
  4. Maybe the hardest part: forget all your 'findings' until yet. They were found with a 'not proper' set up which means they might or might not count on a proper setup. As long as you're not an 'experienced' user you can't distinguish between 'useful information' and 'garbage' until yet. 

 

 

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PART2

This time i used USB 3.0 "single" cable and connected multimeter to the place of twist of wires from screw terminal & 1.7mm jack (you could see all the construction on photo, i've moved all the parts from electric closet to the table, this allows to monitor voltage continuously) I've skipped tests @1104 MHz (see no point), so:

1. No load / 1152Mhz: 5.11v (funny, looks like limited electric closet space without normal airflow gives ~ +10 deg. celcius of SoC temp on idle)

Spoiler

Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.

10:02:27: 1152MHz  0.08   0%   0%   0%   0%   0%   0% 20.4°C  0/8
10:02:32: 1152MHz  0.08   0%   0%   0%   0%   0%   0% 18.5°C  0/8
10:02:37: 1152MHz  0.07   0%   0%   0%   0%   0%   0% 20.2°C  0/8
10:02:42: 1152MHz  0.06   0%   0%   0%   0%   0%   0% 18.4°C  0/8
10:02:47: 1152MHz  0.06   0%   0%   0%   0%   0%   0% 18.1°C  0/8
10:02:52: 1152MHz  0.05   0%   0%   0%   0%   0%   0% 18.0°C  0/8
10:02:57: 1152MHz  0.05   0%   0%   0%   0%   0%   0% 21.2°C  0/8
10:03:03: 1152MHz  0.04   0%   0%   0%   0%   0%   0% 18.1°C  0/8
10:03:08: 1152MHz  0.04   0%   0%   0%   0%   0%   0% 20.4°C  0/8
10:03:13: 1152MHz  0.04   0%   0%   0%   0%   0%   0% 19.8°C  0/8
10:03:18: 1152MHz  0.03   0%   0%   0%   0%   0%   0% 21.2°C  0/8
10:03:23: 1152MHz  0.03   0%   0%   0%   0%   0%   0% 20.1°C  0/8

2. 1 minute after start a lot of IO/CPU intensive tasks: flapping 5.08..5.10V

3. 10 minutes after start a lot of IO/CPU intensive tasks: flapping 5.08..5.10V (i'm really impressed with temperature: max is 35 deg,  average is ~30; defenitely electric closet was a bad idea to place the board into) 

4. 20 minutes after start a lot of IO/CPU intensive tasks: still flapping 5.08..5.10V (temperature is still awesome ~28, but PSU became really hot)

5. 30 minutes after start a lot of IO/CPU intensive tasks: still flapping 5.08..5.10V (temperature is ~28, PSU is still really hot)

6. 40 minutes after start a lot of IO/CPU intensive tasks: still flapping 5.08..5.10V (temperature is ~30, PSU is still really hot; looks like i should wait PSU to overheat and shot start behave itself unpredictably)

7. 50 minutes after start a lot of IO/CPU intensive tasks: still flapping 5.08..5.10V (temperature is ~30, PSU is still really hot)

8. 2h40m after run ... and nothing happened: 5.09 is stable now, temperature is stable ~30.

 

Spoiler

10:05:25: 1152MHz  0.02   0%   0%   0%   0%   0%   0% 18.6°C  0/8
10:05:30: 1152MHz  0.02   0%   0%   0%   0%   0%   0% 20.3°C  0/8
10:05:35: 1152MHz  0.01   0%   0%   0%   0%   0%   0% 19.7°C  0/8
10:05:40: 1152MHz  0.01   0%   0%   0%   0%   0%   0% 17.3°C  0/8
10:05:45: 1152MHz  0.01   0%   0%   0%   0%   0%   0% 19.1°C  0/8
10:05:50: 1152MHz  0.01   1%   1%   0%   0%   0%   0% 23.0°C  0/8
10:05:55: 1152MHz  0.09   6%   1%   2%   0%   3%   0% 22.3°C  0/8
10:06:00: 1152MHz  0.24  34%   6%  21%   0%   6%   0% 23.8°C  0/8
10:06:05: 1152MHz  0.46  56%   3%  41%   0%  11%   0% 29.2°C  0/8
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
10:06:10: 1152MHz  0.51  40%   2%  32%   0%   4%   0% 24.9°C  0/8
10:06:15: 1152MHz  0.63  42%   1%  39%   0%   1%   0% 31.0°C  0/8
10:06:20: 1152MHz  0.82  55%   5%  44%   0%   5%   1% 28.9°C  0/8
10:06:26: 1152MHz  0.99  53%   4%  43%   0%   4%   0% 28.2°C  0/8
10:06:31: 1152MHz  1.07  65%   3%  61%   0%   0%   1% 32.4°C  0/8
10:06:36: 1152MHz  1.15  67%   6%  38%   0%  21%   0% 29.9°C  0/8
10:06:41: 1152MHz  1.30  73%   6%  36%   0%  28%   1% 30.4°C  0/8
10:06:46: 1152MHz  2.23  80%  14%  17%   0%  47%   0% 26.6°C  0/8
10:06:51: 1152MHz  2.94  74%   8%  17%   0%  47%   1% 28.8°C  0/8
10:06:56: 1152MHz  3.90  82%   7%  29%   0%  45%   1% 27.5°C  0/8
10:07:01: 1152MHz  5.11  88%  14%  27%   0%  45%   1% 31.5°C  0/8
10:07:06: 1152MHz  5.82  82%   9%  27%   0%  44%   1% 25.5°C  0/8
... 10 minutes after run ...
10:16:19: 1152MHz  7.98  96%   9%  58%   0%  27%   1% 34.5°C  0/8
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
10:16:24: 1152MHz  8.30  99%   9%  54%   0%  33%   1% 35.7°C  0/8
10:16:29: 1152MHz  8.84  97%   7%  41%   0%  47%   1% 31.2°C  0/8
10:16:34: 1152MHz  9.25 100%   4%  44%   0%  48%   1% 31.2°C  0/8
10:16:39: 1152MHz  9.15  96%   5%  35%   0%  52%   2% 31.3°C  0/8
10:16:45: 1152MHz  8.98  75%   5%  12%   0%  57%   0% 27.3°C  0/8
10:16:50: 1152MHz  8.74  78%   6%  12%   0%  58%   0% 25.2°C  0/8
10:16:55: 1152MHz  8.84  75%   6%  18%   0%  48%   0% 29.4°C  0/8
10:17:00: 1152MHz  9.65  86%   6%  13%   0%  66%   0% 27.8°C  0/8
10:17:05: 1152MHz 10.16  99%   7%  18%   0%  72%   0% 30.0°C  0/8
10:17:10: 1152MHz 10.15  97%   6%  16%   0%  73%   1% 29.0°C  0/8
10:17:15: 1152MHz 10.62  99%  10%  16%   0%  71%   0% 28.9°C  0/8
10:17:20: 1152MHz 10.49  94%   6%   3%   0%  83%   0% 25.9°C  0/8
... 20 minutes after run ...
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
10:26:39: 1152MHz  8.59  92%   9%  28%   0%  53%   0% 30.1°C  0/8
10:26:45: 1152MHz  8.86  97%   8%  44%   0%  42%   1% 31.0°C  0/8
10:26:50: 1152MHz  8.95  99%   7%  34%   0%  56%   0% 32.1°C  0/8
10:26:55: 1152MHz  9.04 100%   3%  30%   0%  64%   0% 28.7°C  0/8
10:27:00: 1152MHz  8.96 100%   4%  36%   0%  58%   0% 29.4°C  0/8
10:27:05: 1152MHz  8.88  94%   5%  22%   0%  65%   0% 26.7°C  0/8
10:27:10: 1152MHz  8.73  92%   6%  22%   0%  62%   0% 27.7°C  0/8
10:27:15: 1152MHz  8.75  86%   6%  14%   0%  64%   0% 29.3°C  0/8
10:27:20: 1152MHz  8.37  90%   9%  40%   0%  40%   1% 33.6°C  0/8
10:27:25: 1152MHz  8.42  94%   7%  14%   0%  71%   0% 28.3°C  0/8
... 30 minutes after run ...
10:36:51: 1152MHz  9.75  89%   6%  36%   0%  45%   0% 30.7°C  0/8
10:36:56: 1152MHz  9.61  98%   6%  48%   0%  43%   0% 33.9°C  0/8
10:37:01: 1152MHz  9.56  96%   8%  48%   0%  38%   1% 28.2°C  0/8
10:37:07: 1152MHz  9.36  94%   8%  42%   0%  43%   0% 29.8°C  0/8
10:37:12: 1152MHz  9.33  90%   6%  40%   0%  43%   0% 29.8°C  0/8
10:37:17: 1152MHz  8.98  82%   7%  19%   0%  54%   0% 27.2°C  0/8
... 40 minutes after run ...
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
10:47:04: 1152MHz  9.29  96%   9%  47%   0%  37%   1% 32.2°C  0/8
10:47:09: 1152MHz  9.34  95%   9%  40%   0%  44%   1% 30.0°C  0/8
10:47:14: 1152MHz  9.56  88%   5%   9%   0%  72%   0% 25.7°C  0/8
10:47:19: 1152MHz  9.27  87%   5%  15%   0%  65%   0% 25.7°C  0/8
10:47:24: 1152MHz  9.01  88%   6%  17%   0%  63%   0% 26.4°C  0/8
10:47:29: 1152MHz  8.69  90%  10%  39%   0%  40%   0% 31.7°C  0/8
10:47:35: 1152MHz  8.79  99%   6%  49%   0%  41%   1% 32.1°C  0/8
10:47:40: 1152MHz  8.89  94%   8%  44%   0%  41%   0% 34.2°C  0/8
10:47:45: 1152MHz  8.74  93%   7%  33%   0%  50%   0% 29.2°C  0/8
10:47:50: 1152MHz  8.68  91%   7%  18%   0%  65%   0% 30.2°C  0/8
... 50 minutes after run ...
10:56:31: 1152MHz  9.27  96%   8%  32%   0%  54%   1% 27.3°C  0/8
10:56:36: 1152MHz  9.69  96%   8%  55%   0%  30%   1% 33.4°C  0/8
10:56:41: 1152MHz  9.64  98%   7%  49%   0%  40%   1% 30.5°C  0/8
10:56:46: 1152MHz  9.35  98%   9%  49%   0%  38%   1% 30.9°C  0/8
10:56:51: 1152MHz  9.32  96%   9%  43%   0%  43%   1% 31.0°C  0/8
10:56:56: 1152MHz  9.37  90%   6%  38%   0%  43%   1% 29.9°C  0/8
10:57:01: 1152MHz  9.50  93%   8%  44%   0%  39%   1% 30.7°C  0/8
10:57:06: 1152MHz  9.86  97%   5%  36%   0%  54%   0% 28.4°C  0/8
10:57:12: 1152MHz 10.04  97%   5%  24%   0%  67%   0% 28.3°C  0/8
... 2h40m after run...
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
12:46:19: 1152MHz  8.53  87%   6%  46%   0%  33%   1% 32.3°C  0/8
12:46:24: 1152MHz  8.17  82%   6%  35%   0%  39%   1% 27.7°C  0/8
12:46:29: 1152MHz  7.84  78%   4%  27%   0%  44%   0% 28.4°C  0/8
12:46:34: 1152MHz  7.53  79%   4%  34%   0%  39%   1% 28.6°C  0/8
12:46:39: 1152MHz  7.33  83%   6%  43%   0%  31%   2% 29.2°C  0/8
12:46:44: 1152MHz  7.06  75%   5%  32%   0%  37%   0% 28.7°C  0/8
12:46:49: 1152MHz  6.73  58%   6%   7%   0%  44%   0% 27.1°C  0/8
12:46:54: 1152MHz  6.67  62%   4%   7%   0%  49%   0% 24.1°C  0/8
12:47:00: 1152MHz  6.94  84%   6%  44%   0%  31%   1% 28.8°C  0/8
12:47:05: 1152MHz  6.95  85%   5%  41%   0%  36%   1% 27.7°C  0/8
12:47:10: 1152MHz  6.79  80%   6%  37%   0%  35%   1% 27.1°C  0/8
12:47:15: 1152MHz  6.65  86%  13%  30%   0%  40%   1% 27.8°C  0/8
12:47:20: 1152MHz  7.56  90%  13%  47%   0%  28%   1% 29.4°C  0/8
12:47:25: 1152MHz  7.99  83%   6%  33%   0%  41%   1% 29.4°C  0/8
12:47:30: 1152MHz  8.47  83%   6%  38%   0%  37%   0% 29.5°C  0/8

 

PART2-EXP.jpg

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2 things changed:

 

  • you stopped those dangerous Y USB cable mess
  • you power your board totally differently now (or did your self-built cable always looked like this with ability to connect the Multimeter)

BTW: if you want to explore undervoltage you need to measure someone else of course: at the board and even at the disk enclosure!!!

 

I haven't checked schematics but 5V should be available on pins 4 and 6 of the GPIO header. If the cable between PSU and board is insufficient it's pretty normal that 5.1 at the PSU turned into something below 4.7V at the board. And voltage available to a connected disk might be even lower.

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52 minutes ago, chwe said:

saved 2-5$ with a shitty PSU.

It was not about "savings", i looked something different from "standard black cubes" with 5V/3A, and found that one. They have a wide range of PSU's so i thougt that they know what the do.

 

53 minutes ago, chwe said:

magic... :ph34r:

 

In fact, indeed: for example, should not there be any protection on board from such current flow ? +there was a recommendation from other user ( @guidol ) to use separate power source for USB-HDD, so this is definitely "not obvious" (at least for me and him)

57 minutes ago, chwe said:

Odroid HC1

Already ordered one from Germany with 4A PSU. There is no official shipment to Russia,  but there are a lot of ways to get it.

59 minutes ago, chwe said:
  • Throw away the shitty PSU

Right after STEP2 (see my updates). And looks like (at least for now, after 1h:10m of testing) the problem is not with PSU (the question is "how long shoud it run in critical mode to we make sure that it is stable enough")

1 hour ago, chwe said:
  • Check if the voltage doesn't drop much when the disk spins up with this PSU

Disk drive is SSD, so no spinning.

1 hour ago, chwe said:
  1. Maybe the hardest part: forget all your 'findings' until yet. They were found with a 'not proper' set up which means they might or might not count on a proper setup. As long as you're not an 'experienced' user you can't distinguish between 'useful information' and 'garbage' until yet. 

 

Sounds strange: you deny lessons learned from negative experience. What is 'proper' or 'not proper' ? Saying 'not proper' you're making a lot of non-proved assumptions (for example about PSU).  And about 'expirienced' users: once again, what will you and @tkaiser and @TonyMac32 would say if this "shitty psu" will remain stable in next 24 hours under stressed mode ? The question should be set in different form: "do we have enough proves of our assumption"  but not in form "my expirience tells me that problem is with PSU, so, because i'm well-expirienced, trust me, you're wasting your time". 

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6 minutes ago, tkaiser said:

I haven't checked schematics but 5V should be available on pins 4 and 6 of the GPIO header.

STEP3 candidate. After a while, and, of course, STEP2 completion.

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35 minutes ago, tkaiser said:
  • you power your board totally differently now (or did your self-built cable always looked like this with ability to connect the Multimeter)

@tkaiser Mmm.. cant understand this; as i understand "almost nothing" had changed. Do you remember this:

Quote

PSU screw terminal <=> two thick wires taken from "standard black computer PSU power connector internals"  <=> twist, covered with insulating tape <=> two a bit thiner (but thick enough) wires ended with 1.7mm jack (cut from 3A PSU).

Now it's just a:

 

PSU screw terminal <=> two thick wires taken from "standard black computer PSU power connector internals"  <=>  twist, covered with insulating tape  + multimeter connected to this point <=> two a bit thiner (but thick enough) wires ended with 1.7mm jack (cut from 3A PSU).

 

So, there is only one thing changed: i removed separate power supply via Y-USB-CABLE

 

@tkaiser i've attached another foto, wires connection is pretty clear from it

 

 

CONN-UP.jpg

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7 minutes ago, grep said:

So, there is only one thing changed: i removed separate power supply via Y-USB-CABLE

Seriously: you now power totally different than before since you play around with custom wiring. If you did something wrong before you created what you suffered from: undervoltage.

 

And now let's stop! The only reason I posted in this thread was since I couldn't believe what was happening and that others created the impression your powering problems would be related to software in general or Armbian.

 

Please add spoiler tags to the walls of text you posted since then this thread might serve as a read for other users affected by the same boring underpowering hassles.

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23 minutes ago, tkaiser said:

The only reason I posted in this thread was since I couldn't believe what was happening and that others created the impression your powering problems would be related to software in general or Armbian.


@tkaiser so, in fact, by using (if generalize widely) "cheating methods" i got a lot of support from you using your "feeling of responsibility for the Armbian project". 

Do no offend please, that definitely was not my intention (i would performed all those tests anyway because of my nature, but it was good experience: to ask for help and to share results with others + learn a couple of lessons kinda "never use Y-USB" and "Check the PSU before you going to replace it")

And i think i will replace my OPi Prime with Odroid HC1 (which i hope won't be so problematic)

 

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So, something like conclusion:

 

1.  You should never use Y-USB cable for powering USB-HDD: it could cause dangerous side-effects like powering your board (and you will not even know about it); 

2. Real reason for MULTIPLE "translation fault" and "usb device reset" is still unknown to me: i used two different PSUs and got errors with both, but real experiments (voltage measurement under stress) was with only one, and, finally stabilized the behavior (the reason found was Y-USB powering for HDD, but what were the reasons for all the previous crashes ? ...)

3. By "sum of facts" i could suppose 2 things:

 - There is an overheat of SoC in "electric closet" which causes strange effects (weakly confirmed, need more different experiments to prove/discard)

 - PSU "lied on back during tests" (this is "normal position") while in "near by electric closet" it "lied on left-side/hanged on wires" (... yeah, i know it sounds insanely, but who knows whats happening with "hot airflow" within this veeeeery hot PSU when it "lies on left-side" and there is no free airflow to the outside)

 

+funniest thing: never thought that board could be powered via USB, always thought that there is a "current in-flow protection from outside" (kinda "something diod-based"), but looks like "it depends on PCB-implementation" and for Orange PiPrime answer is "yes, you can continue to power the board via USB if you already powered it up"

 

   

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8 hours ago, grep said:

In fact, indeed: for example, should not there be any protection on board from such current flow ?

http://www.orangepi.org/download/ORANGEPI-Prime_V1_0.pdf there you go (you need an account on their site to access the pdfs)  

8 hours ago, grep said:

Sounds strange: you deny lessons learned from negative experience. What is 'proper' or 'not proper' ?

I'm doing in science (chemistry)... so learning from negative experience is ~90% of my daily life...  :lol: Not proper is a PSU which reaches near to 20V.  Those 'industrial PSUs' are quite often sold for 3d printers... Sometimes they are ok... sometimes they are  ok-ish:

 

and sometimes they burn down your flat... :P  

 

The main problem is the shipment of them (or they saved 0.01$ by don't use some diodes or fuses to protect them). They're often not protected during shipment, and if it touches something hard the PCB inside is damaged or broken in half (as I saw and smelled it when a friends 3d printer fucked up on the first use). A (to my knowledge) proper powering is with xunlongs provided PSU. My OPi PC+ with the same PSU runs no since 2-3 months without issues. 

 

As discussed here, proper voltage measuring can be tricky too...

 

7 hours ago, grep said:

@tkaiser i've attached another foto, wires connection is pretty clear from it

Just read the first post of the provided thread to understand what is meant by voltage drop through connectors. A barrel plug is for sure better than a microUSB but it doesn't mean that there's no voltage drop...  So the points where you measure voltage doesn't tell you much about voltage which 'arrives' at your SBC/USB... 

 

8 hours ago, grep said:

The question should be set in different form: "do we have enough proves of our assumption"  but not in form "my expirience tells me that problem is with PSU, so, because i'm well-expirienced, trust me, you're wasting your time". 

The 'problem' is that @tkaiser deals since may 2015 with insufficient PSUs,  @TonyMac32 since february and me since may (2017). Cause this topic leads to a continuous frustration on a supporters side, it's more a 'prove us that your PSU/SD-Card (the other evergreen) setup is proper' approach. As long as this is not the case, we don't make assumptions what else could lead to such errors cause it's 'wasted time' (cause the behaviour of an underpowered SBC is somehow unpredictable).

 

6 hours ago, grep said:

within this veeeeery hot PSU when it "lies on left-side" and there is no free airflow to the outside

A PSU which gets veeeeery hot @5V max 3A would be a one which I would throw in the bin. There are PSUs on the market which should deliver 3A @5V without getting hot. 

 

What I 'noticed' on all allwinner boards (I don't have any H5 boards only H2+/H3), that they get quite hot when the power supply is insufficient. But this is only assumption not proved by valid data (but an ongoing project). 

 

6 hours ago, grep said:

And i think i will replace my OPi Prime with Odroid HC1 (which i hope won't be so problematic)

Have fun with it. :)

Spoiler

  ___      _           _     _  __  ___   _ _  _
 / _ \  __| |_ __ ___ (_) __| | \ \/ / | | | || |
| | | |/ _` | '__/ _ \| |/ _` |  \  /| | | | || |_
| |_| | (_| | | | (_) | | (_| |  /  \| |_| |__   _|
 \___/ \__,_|_|  \___/|_|\__,_| /_/\_\\___/   |_|


Welcome to ARMBIAN 5.33.171008 nightly Debian GNU/Linux 8 (jessie) 4.9.52-odroid        xu4
System load:   0.29 0.18 0.11   Up time:       5 days
Memory usage:  10 % of 1993MB   IP:            192.168.x.xx
CPU temp:      46°C
Usage of /:    25% of 7.4G

 

 
 

 

The last shutdown was because I upgraded the firmware of the onboard USB/SATA bridge, not because of some errors.  :)  

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I gave the necessary warning concerning that supply, the OP is a gambler it would seem. Even a couple watts of waste energy when providing 15Watts max is a warning sign. It should at most get "warm", even if you plugged every single air path on it.

See if you can get something like an RS-25-5 Mean Well, $14 USD, and at 5 amps you can power everything at maximum draw. (Adjust to 5.25 volts of course to account for high contact resistances known in micro USB).

As far as HC1/XU4 is concerned, my only shutdowns occur for update maintenance. I've had 60+ day uptimes running as a file and media server transcoding videos and TVHeadend DVR.

Sent from my Pixel using Tapatalk

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1 hour ago, chwe said:

Just read the first post of the provided thread to understand what is meant by voltage drop through connectors. A barrel plug is for sure better than a microUSB but it doesn't mean that there's no voltage drop...  So the points where you measure voltage doesn't tell you much about voltage which 'arrives' at your SBC/USB... 

100% agreed, nothing to argue with; @tkaiser even purposed to mesaure voltage via GPIO ... but i don't have enough internal motivation to perform tests once again + i definitely need to "define the correct questions/hypothesises" + "determine correct methods to find the proves/discards for those questions/hypothesises" ... yak! too much work for such "question": it's much easier to buy "reference PSU" 

 

1 hour ago, chwe said:

'prove us that your PSU/SD-Card (the other evergreen) setup is proper' approach.

That's a good approach when you have to make big deal with lack of resources/small team. See nothing unusual with it, even more, i was really astonished with a lots of posts of @tkaiser one-by-one in this thread.

 

Separately: @tkaiser, thank you for participation, i really appreciate that. BTW: does Armbian project need good photos of OPi Prime PCB ? (you've mentioned it in one of your replies) I can make it, but with my radiators in near day, or without them after my Odroid HC-1 will arrive.

 

1 hour ago, chwe said:

A PSU which gets veeeeery hot @5V max 3A would be a one which I would throw in the bin

Looks like it will go there, as @TonyMac32 had adviced before: it's really too hot to use it without extreme caution.

1 hour ago, chwe said:

Have fun with it. :)

 

 

Oh, please, no more fun like that! ;) Better wish me something kinda "Stable powering and smooth working" :D

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17 minutes ago, TonyMac32 said:

As far as HC1/XU4 is concerned, my only shutdowns occur for update maintenance. I've had 60+ day uptimes running as a file and media server transcoding videos and TVHeadend DVR.

If we are talking about uptime, 60+ is not too bad (with ubuntu), so let it be with HC1.

But i do prefer something kinda

# uptime

 00:38:34 up 1368 days,  5:20,  1 user,  load average: 0,11, 0,09, 0,09

even with cost of "lack of maintenance" if security allows that.

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13 minutes ago, grep said:

it's really too hot to use it without extreme caution.

I would expect that that heat is coming from poor design or poor components, either of which could cause a spontaneous "thermal event"  @Igor I think we need to add a fire emoji, I've seen a few places it would have been handy.  ;-)

 

Like I said about uptime, it has never crashed.  I've taken it offline to move it, rearrange the cabinet, security updates, etc, but the system is quite stable.  My home is not a production environment, so things get moved around quite a bit and I constantly tinker with things.  The XU4 is liquid-cooled, for example (runs 28 C at idle).   <--- Waste of time, but it's what I do instead of TV and (too many) video games

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@tkaiser @chwe @Igor @TonyMac32

 

Sorry for interrupt, but this one does not look for me as the same PSU problem (i turned off all except monerod, so no CPU/IO load at all; http://sprunge.us/RGLj ).

Should i start new topic or log is enough for you to investigate it "one day"? 

 

Spoiler

[80002.208738] INFO: rcu_sched self-detected stall on CPU
[80002.213897] 	0-...: (1 GPs behind) idle=c1a/140000000000001/0 softirq=1937240/1937343 fqs=2622 
[80002.216730] INFO: rcu_sched detected stalls on CPUs/tasks:
[80002.216738] 	0-...: (1 GPs behind) idle=c1a/140000000000001/0 softirq=1937240/1937343 fqs=2622 
[80002.216739] 	(detected by 2, t=5252 jiffies, g=1130687, c=1130686, q=1361)
[80002.216746] Task dump for CPU 0:
[80002.216748] monerod         R  running task        0 15206  15191 0x0000000a
[80002.216755] Call trace:
[80002.216769] [<ffff000008084e48>] __switch_to+0x98/0xb0
[80002.216777] [<ffff00000839e5dc>] btrfs_buffer_uptodate+0x54/0x78
[80002.216782] [<0000000000000019>] 0x19
[80002.243602] 	 (t=5258 jiffies g=1130687 c=1130686 q=1361)
[80002.248995] Task dump for CPU 0:
[80002.248997] monerod         R  running task        0 15206  15191 0x0000000a
[80002.249003] Call trace:
[80002.249009] [<ffff0000080884d8>] dump_backtrace+0x0/0x3a8
[80002.249014] [<ffff000008088894>] show_stack+0x14/0x20
[80002.249020] [<ffff0000080d6b60>] sched_show_task+0x170/0x198
[80002.249024] [<ffff0000080d7b58>] dump_cpu_task+0x40/0x50
[80002.249030] [<ffff0000081085ac>] rcu_dump_cpu_stacks+0x94/0xd8
[80002.249034] [<ffff000008107b5c>] rcu_check_callbacks+0x564/0x788
[80002.249040] [<ffff00000810b6e4>] update_process_times+0x2c/0x58
[80002.249047] [<ffff00000811b2c0>] tick_sched_handle.isra.5+0x30/0x48
[80002.249052] [<ffff00000811b318>] tick_sched_timer+0x40/0x90
[80002.249057] [<ffff00000810c2f4>] __hrtimer_run_queues+0xec/0x168
[80002.249062] [<ffff00000810c570>] hrtimer_interrupt+0xa0/0x228
[80002.249069] [<ffff0000087d3d48>] arch_timer_handler_phys+0x28/0x40
[80002.249074] [<ffff0000080fbe18>] handle_percpu_devid_irq+0x80/0x138
[80002.249080] [<ffff0000080f623c>] generic_handle_irq+0x24/0x38
[80002.249084] [<ffff0000080f68ec>] __handle_domain_irq+0x5c/0xb0
[80002.249088] [<ffff000008080df8>] gic_handle_irq+0x58/0xa8

 

 

 

 

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35 minutes ago, grep said:

 

You've still a corrupted btrfs filesystem, you're still playing with a device that you tortured with 20V in between, AFAIK (not reading through all the new posts since useless) you're still using strange powering. We're back at the 'waste of time' aspect.

 

This thread might serve as something others can learn from. But that's it IMO.

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3 hours ago, grep said:

Should i start new topic


Please don't & stop abusing @ to get attention.

My quick test with this command:

stress --cpu 8 --io 4 --vm 2 --vm-bytes 128M --timeout 501s

http://sprunge.us/HZNc


Everything looks/is fine:
 

Spoiler

13:03:09: 1152MHz  0.00   2%   0%   1%   0%   0%   0% 42.1°C  0/8
13:03:14: 1152MHz  0.00   0%   0%   0%   0%   0%   0% 40.3°C  0/8
13:03:19: 1152MHz  1.12  97%  39%  57%   0%   0%   0% 69.8°C  0/8
13:03:24: 1056MHz  2.15 100%  41%  58%   0%   0%   0% 67.8°C  2/8
13:03:29: 1056MHz  3.10 100%  40%  58%   0%   0%   1% 69.1°C  2/8
13:03:34: 1008MHz  3.98 100%  41%  58%   0%   0%   0% 73.4°C  3/8
13:03:39:  960MHz  4.78 100%  41%  58%   0%   0%   0% 75.4°C  4/8
13:03:45: 1056MHz  5.52 100%  40%  59%   0%   0%   0% 71.5°C  2/8
13:03:50: 1008MHz  6.20 100%  44%  55%   0%   0%   0% 70.7°C  3/8
13:03:55:  960MHz  6.82 100%  41%  58%   0%   0%   0% 76.2°C  4/8
13:04:00: 1008MHz  7.40 100%  40%  59%   0%   0%   0% 72.8°C  3/8
13:04:05:  960MHz  7.93 100%  41%  58%   0%   0%   0% 77.6°C  4/8
13:04:10: 1056MHz  8.41 100%  40%  59%   0%   0%   0% 73.2°C  2/8
13:04:15: 1008MHz  8.86 100%  41%  58%   0%   0%   0% 75.0°C  3/8
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
13:04:20: 1008MHz  9.27 100%  41%  58%   0%   0%   0% 73.2°C  3/8
13:04:25: 1008MHz  9.65 100%  41%  58%   0%   0%   0% 74.9°C  3/8
13:04:31: 1008MHz 10.00 100%  42%  57%   0%   0%   0% 75.1°C  3/8
13:04:36:  960MHz 10.32 100%  41%  57%   0%   0%   0% 78.3°C  4/8
13:04:41:  960MHz 10.62 100%  41%  58%   0%   0%   0% 76.5°C  4/8
13:04:46:  960MHz 10.89 100%  41%  58%   0%   0%   0% 76.5°C  4/8
13:04:51: 1008MHz 11.14 100%  44%  55%   0%   0%   0% 75.7°C  3/8
13:04:56: 1008MHz 11.37 100%  41%  58%   0%   0%   0% 75.5°C  3/8
13:05:01: 1008MHz 11.58 100%  42%  57%   0%   0%   0% 76.1°C  3/8
13:05:06:  960MHz 11.77 100%  42%  57%   0%   0%   0% 76.2°C  4/8
13:05:11:  960MHz 11.95 100%  42%  57%   0%   0%   0% 76.8°C  4/8
13:05:16:  960MHz 12.11 100%  41%  58%   0%   0%   0% 77.9°C  4/8
13:05:22: 1008MHz 12.27 100%  41%  58%   0%   0%   0% 77.1°C  3/8
13:05:27: 1008MHz 12.41 100%  42%  57%   0%   0%   0% 77.2°C  3/8
13:05:32: 1008MHz 12.53 100%  40%  58%   0%   0%   0% 77.0°C  3/8
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
13:05:37:  960MHz 12.73 100%  41%  57%   0%   0%   0% 78.4°C  4/8
13:05:42: 1008MHz 12.83 100%  40%  59%   0%   0%   0% 77.6°C  3/8
13:05:47: 1008MHz 12.93 100%  41%  58%   0%   0%   0% 78.4°C  3/8
13:05:52:  960MHz 13.01 100%  41%  58%   0%   0%   0% 80.6°C  4/8
13:05:57:  960MHz 13.33  99%  43%  55%   0%   0%   0% 79.1°C  4/8
13:06:02:  960MHz 13.39 100%  41%  58%   0%   0%   0% 81.3°C  4/8
13:06:07: 1008MHz 13.44 100%  41%  58%   0%   0%   0% 78.8°C  3/8
13:06:13: 1008MHz 13.48 100%  41%  58%   0%   0%   0% 77.8°C  3/8
13:06:18:  960MHz 13.52 100%  40%  59%   0%   0%   0% 80.0°C  4/8
13:06:23: 1008MHz 13.56 100%  38%  60%   0%   0%   0% 78.3°C  3/8
13:06:28: 1008MHz 13.60 100%  40%  59%   0%   0%   0% 79.3°C  3/8
13:06:33: 1008MHz 13.63 100%  40%  59%   0%   0%   0% 79.3°C  3/8
13:06:38:  960MHz 13.66 100%  40%  58%   0%   0%   0% 81.4°C  4/8
13:06:43:  960MHz 13.77 100%  39%  60%   0%   0%   0% 83.1°C  4/8
13:06:48: 1008MHz 13.80 100%  40%  59%   0%   0%   0% 80.1°C  3/8
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
13:06:53: 1008MHz 13.90 100%  41%  58%   0%   0%   0% 81.3°C  3/8
13:06:59: 1008MHz 14.07 100%  43%  56%   0%   0%   0% 81.3°C  3/8
13:07:04:  960MHz 14.14 100%  39%  60%   0%   0%   0% 83.7°C  4/8
13:07:09: 1008MHz 14.13 100%  41%  58%   0%   0%   0% 81.8°C  3/8
13:07:14: 1008MHz 14.12 100%  36%  63%   0%   0%   0% 81.8°C  3/8
13:07:19: 1008MHz 14.19 100%  35%  64%   0%   0%   0% 81.3°C  3/8
13:07:24:  960MHz 14.18 100%  35%  63%   0%   0%   0% 81.4°C  4/8
13:07:29:  960MHz 14.16 100%  41%  57%   0%   0%   0% 82.4°C  4/8
13:07:34:  960MHz 14.15 100%  38%  61%   0%   0%   0% 83.2°C  4/8
13:07:39: 1008MHz 14.22 100%  44%  54%   0%   0%   0% 82.4°C  3/8
13:07:45: 1008MHz 14.20 100%  41%  57%   0%   0%   0% 80.8°C  3/8
13:07:50: 1008MHz 14.74 100%  43%  56%   0%   0%   0% 81.2°C  3/8
13:07:55: 1008MHz 14.92 100%  41%  58%   0%   0%   0% 80.8°C  3/8
13:08:00: 1008MHz 14.85 100%  42%  57%   0%   0%   0% 82.4°C  3/8
13:08:05: 1008MHz 14.78 100%  44%  55%   0%   0%   0% 80.5°C  3/8
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
13:08:10: 1008MHz 14.72 100%  41%  58%   0%   0%   0% 80.9°C  3/8
13:08:15: 1008MHz 14.74 100%  43%  56%   0%   0%   0% 82.3°C  3/8
13:08:20: 1008MHz 14.68 100%  40%  59%   0%   0%   0% 83.4°C  3/8
13:08:25:  960MHz 14.63 100%  44%  55%   0%   0%   0% 85.1°C  4/8
13:08:31:  960MHz 14.66 100%  41%  58%   0%   0%   0% 86.0°C  4/8
13:08:36:  960MHz 14.69 100%  35%  64%   0%   0%   0% 84.6°C  4/8
13:08:41: 1008MHz 14.71 100%  33%  66%   0%   0%   0% 82.0°C  3/8
13:08:46: 1008MHz 14.73 100%  33%  65%   0%   0%   0% 81.9°C  3/8
13:08:51: 1008MHz 14.76 100%  31%  67%   0%   0%   0% 82.4°C  3/8
13:08:56:  960MHz 14.78 100%  21%  78%   0%   0%   0% 84.3°C  4/8
13:09:01:  960MHz 15.03 100%  33%  66%   0%   0%   0% 84.9°C  4/8
13:09:06:  960MHz 14.95 100%  43%  56%   0%   0%   0% 84.9°C  4/8
13:09:11: 1008MHz 14.96 100%  42%  56%   0%   0%   0% 82.2°C  3/8
13:09:17: 1008MHz 15.12 100%  37%  61%   0%   0%   0% 84.1°C  3/8
13:09:22:  960MHz 15.11 100%  37%  61%   0%   0%   0% 87.4°C  4/8
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
13:09:27: 1008MHz 15.10 100%  42%  57%   0%   0%   0% 84.1°C  3/8
13:09:32: 1008MHz 15.01 100%  40%  58%   0%   0%   0% 84.6°C  3/8
13:09:37: 1008MHz 14.93 100%  42%  57%   0%   0%   0% 84.3°C  3/8
13:09:42:  960MHz 14.86 100%  41%  58%   0%   0%   0% 87.5°C  4/8
13:09:47:  960MHz 14.79 100%  41%  58%   0%   0%   0% 84.8°C  4/8
13:09:52:  960MHz 14.80 100%  41%  58%   0%   0%   0% 85.3°C  4/8
13:09:57:  960MHz 14.82 100%  41%  57%   0%   0%   0% 85.3°C  4/8
13:10:02: 1008MHz 14.75 100%  42%  57%   0%   0%   0% 84.5°C  3/8
13:10:07: 1008MHz 14.69 100%  41%  57%   0%   0%   0% 85.4°C  3/8
13:10:13:  960MHz 14.64 100%  42%  57%   0%   0%   0% 86.4°C  4/8
13:10:18:  960MHz 14.59 100%  42%  57%   0%   0%   0% 88.2°C  4/8
13:10:23: 1008MHz 14.54 100%  42%  57%   0%   0%   0% 86.4°C  3/8
13:10:28:  960MHz 14.50 100%  41%  58%   0%   0%   0% 88.2°C  4/8
13:10:33:  960MHz 14.46 100%  41%  58%   0%   0%   0% 88.3°C  4/8
13:10:38: 1008MHz 14.42 100%  42%  57%   0%   0%   0% 85.9°C  3/8
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
13:10:43:  960MHz 14.39  99%  38%  60%   0%   0%   0% 89.4°C  4/8
13:10:48:  960MHz 14.48 100%  45%  54%   0%   0%   0% 89.7°C  4/8
13:10:54:  960MHz 14.44 100%  40%  57%   0%   0%   1% 85.7°C  4/8
13:10:59: 1008MHz 14.49 100%  39%  59%   0%   0%   0% 86.2°C  3/8
13:11:04: 1008MHz 14.45 100%  38%  60%   0%   0%   0% 86.5°C  3/8
13:11:09:  960MHz 14.49 100%  32%  67%   0%   0%   0% 85.4°C  4/8
13:11:14: 1008MHz 14.69 100%  41%  58%   0%   0%   0% 86.3°C  3/8
13:11:19: 1008MHz 14.72 100%  40%  59%   0%   0%   0% 87.7°C  3/8
13:11:24: 1008MHz 14.66 100%  39%  59%   0%   0%   0% 87.0°C  3/8
13:11:29:  960MHz 14.61 100%  41%  58%   0%   0%   0% 83.2°C  4/8
13:11:34:  960MHz 14.56 100%  40%  59%   0%   0%   0% 86.0°C  4/8
13:11:39: 1008MHz 13.55  22%  10%  12%   0%   0%   0% 71.6°C  3/8
13:11:45: 1152MHz 12.47   9%   4%   5%   0%   0%   0% 65.6°C  0/8
13:11:50: 1152MHz 11.47   8%   3%   4%   0%   0%   0% 63.0°C  0/8
13:11:55: 1152MHz 10.55   7%   3%   3%   0%   0%   0% 63.9°C  0/8
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
13:12:00: 1152MHz  9.70   7%   3%   3%   0%   0%   0% 62.4°C  0/8
13:12:05: 1104MHz  9.01  13%   6%   7%   0%   0%   0% 65.2°C  1/8
13:12:10: 1152MHz  8.29   9%   4%   4%   0%   0%   0% 61.6°C  0/8
13:12:15: 1056MHz  7.62  22%   6%  14%   0%   0%   0% 66.4°C  2/8
13:12:20: 1008MHz  7.01  60%   3%  56%   0%   0%   0% 71.5°C  3/8
13:12:25: 1104MHz  6.45   0%   0%   0%   0%   0%   0% 58.2°C  1/8
13:12:30: 1152MHz  5.93   0%   0%   0%   0%   0%   0% 57.4°C  0/8
13:12:35: 1152MHz  5.46   0%   0%   0%   0%   0%   0% 54.1°C  0/8
13:12:40: 1152MHz  5.02   0%   0%   0%   0%   0%   0% 52.6°C  0/8

 

 


+ running a desktop with attached monitor, external powered USB hub and AP. No heatsink. Powering with 5.00V at a source, proper cable and delivering up to 5A. Which is certainly an overkill for this situation. When limiting PSU down to 2A, the board remains stable ... current goes up to 1.3A.

 

Image: https://dl.armbian.com/orangepiprime/nightly/Armbian_5.37.171218_Orangepiprime_Ubuntu_xenial_next_4.14.6_desktop.7z

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5 hours ago, tkaiser said:

You've still a corrupted btrfs filesystem

grep@orangepiprime:/home$ sudo btrfs scrub status /home
scrub status for 835d7f1d-2047-47b1-9dcc-24bbc3be48c0
        scrub started at Sun Dec 17 14:49:30 2017 and finished after 00:42:45
        total bytes scrubbed: 94.53GiB with 0 errors
grep@orangepiprime:/home$ df -h /home/
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1       430G   96G  333G  23% /home
stress --cpu 8 --io 4 --vm 2 --vm-bytes 128M --timeout 501s
stress: info: [21289] dispatching hogs: 8 cpu, 4 io, 2 vm, 0 hdd
stress: info: [21289] successful run completed in 501s

See no problem too (BTW, your SoC is really hot under stress, so my previous guess about SoC overheat looke more and more like wrong one):

Spoiler

Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.

15:40:28: 1152MHz  9.65  29%   4%  13%   0%  10%   0% 41.3°C  0/8
15:40:34: 1152MHz 10.00 100%  41%  58%   0%   0%   0% 39.1°C  0/8
15:40:39: 1152MHz 10.76 100%  40%  59%   0%   0%   0% 42.4°C  0/8
15:40:45: 1152MHz 11.02 100%  41%  58%   0%   0%   0% 41.6°C  0/8
15:40:50: 1152MHz 11.26 100%  40%  59%   0%   0%   0% 39.1°C  0/8
15:40:56: 1152MHz 11.48 100%  41%  58%   0%   0%   0% 42.5°C  0/8
15:41:01: 1152MHz 11.68 100%  41%  58%   0%   0%   0% 42.6°C  0/8
15:41:07: 1152MHz 11.87 100%  40%  59%   0%   0%   0% 43.2°C  0/8
15:41:12: 1152MHz 12.04 100%  40%  59%   0%   0%   0% 42.5°C  0/8
15:41:18: 1152MHz 12.20 100%  41%  58%   0%   0%   0% 43.8°C  0/8
15:41:23: 1152MHz 12.34 100%  42%  57%   0%   0%   0% 41.7°C  0/8
15:41:29: 1152MHz 12.67 100%  41%  58%   0%   0%   0% 39.2°C  0/8
15:41:34: 1152MHz 12.78 100%  41%  58%   0%   0%   0% 42.1°C  0/8
15:41:40: 1152MHz 12.88 100%  41%  58%   0%   0%   0% 40.2°C  0/8
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
15:41:46: 1152MHz 12.97 100%  41%  58%   0%   0%   0% 43.3°C  0/8
15:41:51: 1152MHz 13.05 100%  41%  58%   0%   0%   0% 44.0°C  0/8
15:41:57: 1152MHz 13.20 100%  41%  58%   0%   0%   0% 42.4°C  0/8
15:42:02: 1152MHz 13.27 100%  41%  58%   0%   0%   0% 44.3°C  0/8
15:42:08: 1152MHz 13.33 100%  41%  58%   0%   0%   0% 42.8°C  0/8
15:42:13: 1152MHz 13.38 100%  41%  58%   0%   0%   0% 42.8°C  0/8
15:42:19: 1152MHz 13.55 100%  40%  59%   0%   0%   0% 42.4°C  0/8
15:42:25: 1152MHz 13.59 100%  41%  58%   0%   0%   0% 41.4°C  0/8
15:42:30: 1152MHz 13.62 100%  41%  58%   0%   0%   0% 42.5°C  0/8
15:42:36: 1152MHz 13.65 100%  42%  57%   0%   0%   0% 46.1°C  0/8
15:42:41: 1152MHz 13.68 100%  41%  58%   0%   0%   0% 44.2°C  0/8
15:42:47: 1152MHz 13.71 100%  42%  57%   0%   0%   0% 43.0°C  0/8
15:42:53: 1152MHz 13.73 100%  40%  59%   0%   0%   0% 40.3°C  0/8
15:42:58: 1152MHz 13.75 100%  41%  58%   0%   0%   0% 42.2°C  0/8
15:43:04: 1152MHz 13.77 100%  42%  57%   0%   0%   0% 43.3°C  0/8
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
15:43:09: 1152MHz 13.88 100%  41%  58%   0%   0%   0% 43.2°C  0/8
15:43:14: 1152MHz 13.89 100%  41%  58%   0%   0%   0% 45.3°C  0/8
15:43:20: 1152MHz 13.90 100%  41%  58%   0%   0%   0% 44.0°C  0/8
15:43:25: 1152MHz 13.91 100%  41%  58%   0%   0%   0% 44.3°C  0/8
15:43:31: 1152MHz 13.92 100%  40%  59%   0%   0%   0% 39.2°C  0/8
15:43:37: 1152MHz 13.92 100%  41%  58%   0%   0%   0% 45.5°C  0/8
15:43:42: 1152MHz 13.93 100%  41%  58%   0%   0%   0% 42.1°C  0/8
15:43:48: 1152MHz 13.93 100%  42%  57%   0%   0%   0% 45.9°C  0/8
15:43:53: 1152MHz 13.94 100%  41%  58%   0%   0%   0% 42.5°C  0/8
15:43:58: 1152MHz 13.94 100%  41%  58%   0%   0%   0% 44.2°C  0/8
15:44:04: 1152MHz 14.03 100%  41%  58%   0%   0%   0% 41.4°C  0/8
15:44:10: 1152MHz 14.02 100%  41%  58%   0%   0%   0% 43.9°C  0/8
15:44:15: 1152MHz 14.02 100%  40%  59%   0%   0%   0% 43.1°C  0/8
15:44:21: 1152MHz 14.02 100%  41%  58%   0%   0%   0% 42.7°C  0/8
15:44:26: 1152MHz 14.02 100%  40%  59%   0%   0%   0% 43.3°C  0/8
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
15:44:32: 1152MHz 14.02 100%  41%  58%   0%   0%   0% 41.9°C  0/8
15:44:37: 1152MHz 14.02 100%  41%  58%   0%   0%   0% 43.9°C  0/8
15:44:43: 1152MHz 14.01 100%  40%  59%   0%   0%   0% 43.0°C  0/8
15:44:48: 1152MHz 14.01 100%  41%  58%   0%   0%   0% 41.6°C  0/8
15:44:54: 1152MHz 14.08 100%  41%  58%   0%   0%   0% 42.7°C  0/8
15:45:00: 1152MHz 14.08 100%  41%  58%   0%   0%   0% 40.8°C  0/8
15:45:05: 1152MHz 14.07 100%  41%  58%   0%   0%   0% 45.7°C  0/8
15:45:11: 1152MHz 14.06 100%  41%  57%   0%   0%   0% 41.7°C  0/8
15:45:16: 1152MHz 14.06 100%  41%  58%   0%   0%   0% 44.2°C  0/8
15:45:22: 1152MHz 14.05 100%  40%  59%   0%   0%   0% 41.5°C  0/8
15:45:27: 1152MHz 14.05 100%  40%  59%   0%   0%   0% 43.1°C  0/8
15:45:33: 1152MHz 14.05 100%  41%  58%   0%   0%   0% 44.3°C  0/8
15:45:38: 1152MHz 14.04 100%  40%  59%   0%   0%   0% 44.8°C  0/8
15:45:44: 1152MHz 14.11 100%  41%  58%   0%   0%   0% 41.3°C  0/8
15:45:50: 1152MHz 14.10 100%  40%  59%   0%   0%   0% 43.6°C  0/8
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
15:45:55: 1152MHz 14.09 100%  41%  58%   0%   0%   0% 44.0°C  0/8
15:46:01: 1152MHz 14.08 100%  40%  59%   0%   0%   0% 41.7°C  0/8
15:46:06: 1152MHz 14.08 100%  41%  58%   0%   0%   0% 44.4°C  0/8
15:46:12: 1152MHz 14.07 100%  41%  58%   0%   0%   0% 44.6°C  0/8
15:46:17: 1152MHz 14.07 100%  41%  58%   0%   0%   0% 45.1°C  0/8
15:46:23: 1152MHz 14.06 100%  41%  58%   0%   0%   0% 41.9°C  0/8
15:46:28: 1152MHz 14.06 100%  41%  58%   0%   0%   0% 42.6°C  0/8
15:46:34: 1152MHz 14.12 100%  41%  57%   0%   0%   0% 43.0°C  0/8
15:46:40: 1152MHz 14.11 100%  41%  58%   0%   0%   0% 43.4°C  0/8
15:46:45: 1152MHz 14.10 100%  41%  58%   0%   0%   0% 43.0°C  0/8
15:46:51: 1152MHz 14.09 100%  41%  58%   0%   0%   0% 43.8°C  0/8
15:46:56: 1152MHz 14.08 100%  41%  58%   0%   0%   0% 44.2°C  0/8
15:47:02: 1152MHz 14.08 100%  41%  58%   0%   0%   0% 45.3°C  0/8
15:47:07: 1152MHz 14.07 100%  41%  58%   0%   0%   0% 43.8°C  0/8
15:47:13: 1152MHz 14.07 100%  41%  58%   0%   0%   0% 45.1°C  0/8
Time        CPU    load %cpu %sys %usr %nice %io %irq   CPU  C.St.
15:47:18: 1152MHz 14.06 100%  41%  58%   0%   0%   0% 43.7°C  0/8
15:47:24: 1152MHz 14.12 100%  41%  58%   0%   0%   0% 44.0°C  0/8
15:47:30: 1152MHz 14.11 100%  42%  57%   0%   0%   0% 42.4°C  0/8
15:47:35: 1152MHz 14.11 100%  42%  57%   0%   0%   0% 42.1°C  0/8
15:47:40: 1152MHz 12.98   2%   1%   1%   0%   0%   0% 28.9°C  0/8
15:47:45: 1152MHz 11.94   0%   0%   0%   0%   0%   0% 28.4°C  0/8
15:47:50: 1152MHz 10.98   0%   0%   0%   0%   0%   0% 26.0°C  0/8
15:47:55: 1152MHz 10.10   0%   0%   0%   0%   0%   0% 26.9°C  0/8
15:48:01: 1152MHz  9.29   0%   0%   0%   0%   0%   0% 22.7°C  0/8
15:48:06: 1152MHz  8.55   0%   0%   0%   0%   0%   0% 25.4°C  0/8
15:48:11: 1152MHz  7.86   0%   0%   0%   0%   0%   0% 22.3°C  0/8
15:48:16: 1152MHz  7.23   0%   0%   0%   0%   0%   0% 23.0°C  0/8

 

 

But i will replace PSU with "black cube" and will "just watch if something strange happen".

After that, seems like the best i can do is to wait for "reference PSU" from Xunlong (but HC-1 will arrive earlier some maybe i just will forget OPi Prime as a nightmare).

 

 

 

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1 hour ago, grep said:

See no problem too (BTW, your SoC is really hot under stress, so my previous guess about SoC overheat looke more and more like wrong one):


Repeat the whole thing with the same kernel/image that I used. That will be somehow more representative. I don't use a heatsink, ambient is around 20°C and heating up to 90°C is within the thermal limits of the chip.

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@Igor It's meaningless, because my "black cube PSU" provides OVERVOLTAGE by default (see image attached)

So, i'm just an "extremely lucky" one who got 2 unstable PSUs.  Absolutely awesome.

Will wait for 'reference PSU'. @tkaiser ;) i'll say it: ok,  looks like you were right 

 

So: most likely, the set of sporadic problems was caused by usage of 2(!) unstable (OVERVOLTAGED) PSU's one-by-one.

 

OVERVOLTAGE.jpg

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It would be best if, as mentioned earlier, you test the voltage at the GPIO pins or the USB.  I reliably get a 0.1 to 0.2 volt drop across a micro-USB cable.  It's also important to see that supplies, especially "Black cubes" and "wall warts" tend to run high until placed under appropriate load.

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