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XPRO V4 - atmega328p is very hot !

Discussion in 'Controller Boards' started by Kenjhy_972, Jan 21, 2020.

  1. Kenjhy_972

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    Hello,
    Delighted to be part of the community, I am a beginner in the CNC world and I meet a problem, which seems to me not normal.
    Has anyone encountered a heating problem with the XPRO V4 card?
    The Atmel MEGA328PB chipset is very very hot to the point that I burned my finger.

    Thank you for your feedback.
     
  2. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    That would definately be a dead xPro at this point. They do not heat up unless already destroyed by a bad overvoltage, short, etc
    Incorrect wiring could have killed the MCU, so check your wiring very closely when you get a new controller, or it may destroy another one.
     
  3. Kenjhy_972

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    est-il possible de changer le composant de la carte mère?
    et après cela, sera-t-il possible de réinjecter le code grbl?
    En apparence, il n'y a pas de composant impacté.
     
  4. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Depends on your skill level, but yes
    - Replace the chip (surface mount, so need hot air tools, wicking, flux, etc)
    - Reflash bootloader using an ICSP programmer: Arduino - Bootloader (needs an ISCP programmer like an AVRISP, USBTinyISP etc)
    - Reinstall Grbl: gnea/grbl
     
  5. Kenjhy_972

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    hello, thank you for your help, i think more, for a question of time, reinvest on another card.
    best regard,
     
  6. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Just be careful that you check all wiring etc before connecting a new one, before it damages the replacement controller too
    Good luck!

    PS: Consider the BlackBox 4X (OpenBuilds BlackBox 4X Documentation) - it has protected inputs that help prevent wiring issues from causing damages
     

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