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I've been using my raspberry pi for about 3 days, and on these 3 days the Pi has stopped running 2 times. It just shuts down. I'm using it as a server and it gets kind off warm when I'm using it. (I'm using it 24/7.)

I'm using a trancend 8gb SDHC micro card. And for the power im using a regular Samsung s5 charger. And I'm using a hdmi cable for the monitor and a ethernet cable for internet.

Thats basically it, does anyone has any idea what might cause this issue?

Ghanima
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Anton
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  • This will be hard answer. Do you have anything to narrow it down? Anything unusual happening befor shutdown? Had a look in the log files? – Ghanima May 30 '15 at 18:01
  • No i have my monitor off, so i cant see the screen, i just hear the external the harddrive and Pi's sound disapearing, and then its shut off – Anton May 30 '15 at 18:18
  • But it's still worth to check the logs. What's your OS (rasbian?)? – Ghanima May 30 '15 at 18:24
  • yea its rasbian, the reccomended one. i have shut down my Pi at the moment because of the heat, can i still see the logs of when it happend, if i turn it back on? – Anton May 30 '15 at 18:28
  • Yes, you should find those logs (unless /var is not mounted in RAM). Have a look to /var/log/* – Ghanima May 30 '15 at 18:59
  • You're not using "a regular Samsung s5 charger". The Samsung s5 comes with a USB 3.0 charger. Are you certain you're supplying enough power for the PI and all peripherals? How hot is hot? I know people don't like their electronics warm, but the PI can actually withstand a lot of heat. It might be worthwhile to add a cron entry that records the temp every 5 minutes – Jacobm001 May 30 '15 at 20:14

1 Answers1

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This is most always a case of either a bad power supply or software that is too "heavy" on the pi.

Hardware

Some times adapters output a different voltage/current then the label says they do. If you have a multimeter you can check to see the current and voltage output of your charger. In order for you Pi to run properly in an idle state for most boards it needs at least 700 mA and between 4.75 V (absolute minimum) and 5.25 volts. Depending on peripherals such as, high current Wifi adapters, wireless keyboard adapters, and external hard drives, you will need more current input.

Software

The issue could also be a problem with the software overloading the Pi. You could write a simple script to monitor the cpu usage to check this. Sort of something like this or this. If you are running your pi headless as a server if you have not already done so I suggest you run sudo raspi-config and split the ram to give the most to the cpu since you are not using the gpu.

Community
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NULL
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  • Hello thanks for replying, how do i split the ram when i typed sudo raspi-config – Anton May 30 '15 at 22:34
  • nevermind i found it, but how much memory should i use on the cpu? its says 16/32/64/128/256 – Anton May 30 '15 at 22:40
  • Since I understand you are not using the GUI I would give it the full 256! – NULL May 30 '15 at 23:03
  • I saw a post about ram split with this command sudo rpi-update 240/16 is this the same thing, just a different way to do it? – Anton May 30 '15 at 23:06
  • I am unaware of that command. However, I would suspect that all that does is update your system before changing ram allocation to 240 for CPU and 16 for GPU. Could you post the link? I can't find anything like that. – NULL May 30 '15 at 23:09
  • i found this in this thread [link]http://raspberrypi.stackexchange.com/questions/1671/how-can-i-change-the-ram-split and another thing do i only need to reboot after chaning in rasp-config? – Anton May 30 '15 at 23:11
  • Ok...yes I was just about to post that. Yes regardless you have to reboot for the changes to have affect because it is a core system setting. – NULL May 30 '15 at 23:14
  • Okey, so its not any different from using the method i linked? anyway thanks for helping me with this issue :) – Anton May 30 '15 at 23:18
  • As, far as changing the RAM allocation, no, its not any different. – NULL Jun 01 '15 at 10:19