I've got a Raspberry Pi 1 Model B that has been my trusty workhorse for a few years. It normally chugs away happily running transmission, pi-hole and a node.js app simultaneously.

All of a sudden it's started to become unresponsive under load. I can no longer SSH into it, but I can still ping it during this time. I can't access the transmission or pi-hole web clients when this happens either.

The only thing I can think of is that I've moved abroad and I'm now on a 120v circuit, but the power unit does say it's capable of running on 120-240v. It's a 5V 2A unit which has never caused me any problems in the UK.

What are some steps I could take to try and diagnose the problem?

  • 1
    If you've crossed the seas, you're likely on a different network. What else is on this network? What kind of router do you have? Has anything else on your network gotten infected? Commented Nov 17, 2018 at 18:30
  • 1
    Have you tried swapping out the power supply and/or USB cable? Commented Nov 17, 2018 at 18:30
  • I've swapped the USB cable and it seems a little more stable, it might have deteriorated. I have a better router than before, nothing else on the network is struggling. Getting a lot of 'unable to save resume file: input / output error' with transmission...the HDD it's hooked up to was also at about 95% capacity so hopefully that will stop now. Possibly multiple issues manifesting at once..
    – Steji
    Commented Nov 17, 2018 at 20:17

2 Answers 2


One option is to use a monitoring tool, i.e. Munin:

Munin is a networked resource monitoring tool that can help analyze resource trends and "what just happened to kill our performance?" problems.

source: http://munin-monitoring.org/

You can find an introductory guide and more options here.


Turns out the SD card was done for. This became apparent when trying to format it and it couldn't be done.

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