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Is my Raspberry Pi finished out of the start gate?

e14 Contributor

I took delivery this past week.  Waited until I could download an OS and install it onto a 32 Gig SD card before I begin playing with it.  Once I did that, I plugged it in and......nothing.  Tried the composit vidio....nothing.  Tried the HDMI port.....nothing.  I was expecting at least some kind of a BIOS screen even if it didn't see an OS.  So.....is it DOA?

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  • Some things you can check.

     

    If you plug the sd card in a windows pc, you should at least see the boot partition with the boot files in it. It's approx 70MB in size.

    The Pi does nothing when the sd card is not plugged in, as the boot partition contains the firmware which can be compared to a pc bios.

    The green ok led on the Pi is like the hdd led of a pc. It should start flashing when the os is read from the sd card.

    For a stable Pi operation, you need a TP1 - TP2 voltage of at least 4.85V. The testpoints are clearly marked on the board.

    The Elinux site might be the place for more information to fix your issue.

    Some people also reported bad contacts on the sd card socket. A visual inspection of those contacts doesn't hurt.

  • in reply to e14 Contributor

    After trying the two OSs, I note no green led showing drive access.  The power supply was purchased specifically for the RPi and is a 5 volt at 1 amp, pleanty of power to supply the unit.  I haven't measured the voltage at the test points yet but suspect no issue with this.  It will be verified. 

  • in reply to e14 Contributor

    I'd recommend you measure the voltage on the test points, also try to see if the board works with a smaller (4-8G SD card).

     

    What brand/model/class is your 32GB card ?

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