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APU1.c

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    Posts: 1
    stefangw - Posted Feb 6th

    I accidentally connected an APU1.c with wrong polarity: switching power supply with 12 V DC, but plus/minus wrong.

    Now I corrected this and the board simply starts making a clicking sound (relais?) and blinking .. LEDs D10 and D11 and the 3 "status" LEDs D5-D7.

    serial console just shows the BIOS line again and again ...

    "PC Engines APU BIOS build date: Apr  5 2014"

    Same with or without SD card inside.

     

    Did I kill it? Any trick to reset or something?

    EDIT: seems the PSU is to weak, right? 12V 600mA ... according to the label.

     


    Post last edited Feb 6th
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    miczyg - Posted May 23rd

    Yes, it sounds like weak power supply. had similar symptoms when my power supply became dead. Please find a 2A power supply (apu can take 2 amps in the peak during startup)s

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