BreadedFungus
Posts: 2
Joined: Thu Mar 27, 2014 4:48 pm

Raspberry Pi acting erratic despite new install

Thu Mar 27, 2014 5:15 pm

I decided to reinstall Rasbian onto my Raspberry Pi, via NOOBS. I'm using all default settings except I have the thing overclocked at 800mHz. I type things into the CLI but my inputs seem to be not registering consistantly. When i finally log in I type startx to get to the GUI. I experience the same issuses with the LXTerminal. Sometimes the mouse freezes, and I can't move it, and I have to reboot the system. I decide after 5 times of experienceing these issues, and rebooting, to reformat the SD card and reinstall Rasbian, via NOOBS, ALL defaults and I experience the same issues. I know it is not my keyboard and mouse becuae I tested those on my normal computer and they worked fine. Its not my USB ports because I have a usb fan and it worked on both of my USB ports.

ThomasS
Posts: 118
Joined: Thu Jan 23, 2014 7:05 pm
Location: Leeds
Contact: Website

Re: Raspberry Pi acting erratic despite new install

Thu Mar 27, 2014 7:26 pm

Sounds like a power supply problem. Try another and see if that helps.
ThomasS

BreadedFungus
Posts: 2
Joined: Thu Mar 27, 2014 4:48 pm

Re: Raspberry Pi acting erratic despite new install

Thu Mar 27, 2014 7:48 pm

I have a model B. My adaptor says it has an output of 5V, and 700 mA. Is this enough? The power requirements of the FAQ says that the model B uses 700-1000mA. Is this input or output?

ThomasS
Posts: 118
Joined: Thu Jan 23, 2014 7:05 pm
Location: Leeds
Contact: Website

Re: Raspberry Pi acting erratic despite new install

Thu Mar 27, 2014 7:58 pm

It should be, but adapters don't always output the power they say they do. If you have another micro-usb phone charger lying around, you could try that.
ThomasS

User avatar
redhawk
Posts: 3465
Joined: Sun Mar 04, 2012 2:13 pm
Location: ::1

Re: Raspberry Pi acting erratic despite new install

Thu Mar 27, 2014 8:29 pm

Kernel panics, freezing or reboots are classic symptoms of an unsuitable power supply or F3 polyfuse going bad.
Sometimes even measuring the voltage at TP1/TP2 may look normal, but don't be fooled it's not always a good indicator as I have discovered with one of my phone chargers.

Richard S.

Return to “Troubleshooting”