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<chewitt>
to add some colour to psu discussions .. I've been running a bare board with no cooling (no heatsink/fan) and whatever USB-C psu that was lying around
<chewitt>
mostly the original psu they shipped to rpi4 testers (so 3A specs)
<chewitt>
but I just spent a couple of weeks in the UK and forgot that, but had one of the el-cheapo khadas 5v psu's in a cupboard
<chewitt>
not even sure what spec that is, but probably 2A
<chewitt>
for LE uses neither of them have caused any problems
<DC-IRC>
<Tonymac32> If you stick with the "dumb" CC resistor setup, none will
<DC-IRC>
<Tonymac32> And 1.5 or 3A
<DC-IRC>
<Tonymac32> But 5A takes more negotiation and checking
<DC-IRC>
<Tonymac32> As soon as you go active negotiation the nightmare begins
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<DC-IRC>
<dsx724> 5A needs e-marked cables that communicate with PD controller.