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Troubleshooting • Re: RPi5 - External USB drive not working and clicking.

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Thanks for reply. It seems to be indeed problem with PSU, in it's documentation I can see following as USB-C output:
  • 5V/3A
  • 9V/2.77A
  • 12V/2.08A
So it is clearly lacking 5V/5A. When adding

Code:

usb_max_current_enable=1
, I can connect external USB disk, partition table is recognized and I can even mount NTFS partition and read/write data. So it seems OK, but in dmesg output I can see alerts about under voltage:

Code:

[  132.429654] hwmon hwmon4: Undervoltage detected![  132.685768] scsi 0:0:0:0: Direct-Access     WD       Elements 2620    1023 PQ: 0 ANSI: 6[  132.687555] sd 0:0:0:0: [sda] Spinning up disk...[  132.691653] sd 0:0:0:0: Attached scsi generic sg0 type 0[  133.709952] .[  134.446858] hwmon hwmon4: Voltage normalised[  134.733825] .....ready
Those alerts are exactly around time when it tries to spin-up disk, so I assume it is only time when it really draws more power. I will try to do stress load: occupy all CPU cores and will try to add disk then, but I feel like it would be risking data integrity on both USB and NVMe disk, so I guess I will go for Official RPi charger that supports 5V/5A...

Statistics: Posted by coRp — Mon Jun 10, 2024 10:41 pm



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