Raspberry Pi 3b won't boot on powerup - need to remove and reinsert power each time?
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I have a RP3b with a brand new clean install of the latest version of RetroPie from .org. The Pi is connected to the poweroutlet which is normal "off".
When I switch the poweroutlet "on", I get the green LED showing on the Pi - but it does not load retropie.
The workaround is to pull the lead from the Pi, and reinsert it - then it starts up and loads RetroPi.
What needs to happen to make to load RetroPi without pulling the power everytime?
Thanks.
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@alistairgd what do you mean by “poweroutlet” ? How is the pi powered?
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It sounds like the Pi is getting power (LED), but the video isn't being output (TV or monitor doesn't turn on or display anything). IF this is the case then you're powering down the Pi mid-boot or at the very least powering it off unsafely, risking SD card corruption. I would look at the display/tv/monitor to make sure it's receiving a video signal. Maybe the display is just slower in booting up or powering on?
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@lostless Hi, Electrical Wall Socket.
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@iandaemon said in Raspberry Pi 3b won't boot on powerup - need to remove and reinsert power each time?:
It sounds like the Pi is getting power (LED), but the video isn't being output (TV or monitor doesn't turn on or display anything).
Yes it is getting power because the red light comes on, but the 2nd LED which flashes green when the memory is being read does not come on, so the device is not booting. When I remove the power cable and re-insert it, the LED flashes green and the device boots.
I made sure and powered down the Pi properly, however the same thing happened again, it does not boot unless I pull the power lead out, then re-insert.
I have a Pi3 and a Pi4 both set up the same, only the Pi3 is displaying this behaviour.
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@alistairgd what type of power supply? Maybe the turn on time, and ramp time to reach full voltage is too slow and is confusing the pi so, it just doesn’t boot. Basically the pi is under volted, but just enough to try to turn on, for a split second and refuses to boot. When you unplug and plug the pi back in , the power supply is running full voltage and gives you no issues. Try another power supply or at least get an official one or use a switch on the DC side.
My theory. But it’s the thing that makes sense for now. -
@lostless Makes sense. Good guess.
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@lostless Sound theory - but this is the offical Pi3 power supply, and there are only 2 USB hubs and an amp plugged in to USB ports.
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@alistairgd You have an amp plugged into the Pi? That could be pulling A LOT of power.
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@alistairgd having extra loads can increase, whats called, the rise time. no power supply supplies full voltage when first turned on. I work on power supplies and The rise time can be upwards of 100ms. And while that’s a very short time, its enough time to run a few cpu clock cycles on the pi under volted. Add in the extra stuff and you may get a few more dips as those devices power up.
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