Kia ora.

 

I am aware that the external USB ports on the Helios are able to deliver up to 900mA per port. I am wondering whether it is possible to find a power source inside the Helios64 that would be able to deliver, say, 2.5A at 5v? Maybe somewhere quite soon after the 12v power in...?

 

🤔

 

   Jon

5v - 12v At your peril !  https://wiki.kobol.io/helios64/sata/#j8-pinout

12v Maybe you can possibly bridged the input power to J16 https://wiki.kobol.io/helios64/hardware/#connector-interface-list

3v - 5v but not 2.5a https://wiki.kobol.io/helios64/ gpio /# pinout

 

Helios64 is not intended for this. the best would be to make a space size of your power cable on back cover of the case and plug it into a power source provided for this purpose.

Should be easy enough to grab 5V of the wiring harness for the HDDs. J8 is the place to go for your high power 12V or 5V needs. https://wiki.kobol.io/helios64/sata/#j8-pinout (there is even a picture with the wire harness). 

The GPIO header is not the right place to get high current from .)

Many thanks!