07-05-2016, 04:38 AM
(This post was last modified: 07-05-2016, 04:48 AM by pfeerick.
Edit Reason: typo
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(07-04-2016, 12:27 PM)DonFL Wrote:(07-04-2016, 12:19 PM)xalius Wrote: 550mA is certainly not enough to power the Pine, my Pine draws about 600mA idling... you can easily get up to 1.5A under load with some things attached...
Based on some very unscientific testing, I found that somewhere between 1 and 1.5A minimum seems to be the success threshold. I inadvertently used a 1A adapter when I booted remix for the first time, and spent way too much time scratching my head wondering why it wouldn't boot. It got me to doing some very unscientific testing, was able to boot all 3 OSs (debian, android, remix) with a 1.5A Pi adapter, and, of course, it does fine with a 2A supply. The 1A supply is hit or miss, depending on whats connected, the OS I'm booting (sort of surprising there..), etc.
I still do believe there is an voltage output stability factor involved here also, but its so easily avoided just by using a solid stable 2A adapter I'm not of the belief it warrants a lot of testing to shed light on a problem that is easily avoided.
If the pine64 is given a clean 5v supply, it needs an absolute minimum of 700ma to boot a linux image with HDMI and wifi/bt connected, with no other peripherals at all connected. As soon as you start adding a display into the mix, it will probably need a 1.5A power supply for it to be reliable. I'd just get myself a 5v 2A or better power supply as everyone else is recommending so you don't have to worry about it in the future.