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Pi Desktop: max current output?

rootard

Hello

 

I have purchased a Element14 Pi Desktop that I'm using with my Pi 3B+ and the original Raspberry 2.5A PSU.


So far it was running fine with the RTC hat + SSD + 2 fans on the GPIO (1 for the heatsink and one for the case) + an Aeotec ZWave key connected on the USB port.

However the Pi froze after a few hours when I added an USB RFXCom device.

I suspect a power issue. I've tried to used a bigger 3A PSU with same results.

 

What is the maximum current provided by the Pi Desktop Hat?

Is there a fuse limiting the power provided to the Pi board?

Is there a way to solder the fans directly to the Hat input in order to avoid voltage drop? If yes on which pins?

 

Thanks

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    A Pi 3 doesn't need two fans. It's even possible to use fully passive heatsinking with the Pi 3 under full load, but that's difficult with that enclosure.

    The fans will be consuming most power, not the RFXCom device or your other wireless device. If you can remove one fan, then there's a fair chance you may be ok in terms of power consumption, and it will still run at full speed.

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  • 0

    A Pi 3 doesn't need two fans. It's even possible to use fully passive heatsinking with the Pi 3 under full load, but that's difficult with that enclosure.

    The fans will be consuming most power, not the RFXCom device or your other wireless device. If you can remove one fan, then there's a fair chance you may be ok in terms of power consumption, and it will still run at full speed.

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