Raspberry Pi 4B+ Voltage Issues

Blue51
Member

05-23-2016, 02:48 AM

Your Raspberry Pi received too much power and is now unresponsive. No signs of damage were found, but the issue might be resolved by switching to a PoE HAT instead of the USB-C port.

Blue51

05-23-2016, 02:48 AM #1

Your Raspberry Pi received too much power and is now unresponsive. No signs of damage were found, but the issue might be resolved by switching to a PoE HAT instead of the USB-C port.

ille200306
Member

159

05-23-2016, 04:40 AM

The way power functions is different from what you thought. A 100W adapter gives full 100W only when the device accepts it. USB-PD chargers begin at 5V and increase only after they confirm a connection request for more power. What’s happening? Which adapter are you using?

ille200306

05-23-2016, 04:40 AM #2

SkyInsane
Senior Member

718

05-23-2016, 07:48 PM

Do you possess the POE cap? If yes, attempt it.

SkyInsane

05-23-2016, 07:48 PM #3

Do you possess the POE cap? If yes, attempt it.

Mitchell006
Member

186

05-30-2016, 12:18 AM

Check out this USB-C adapter from Dell. It connects to your PC and supports high-performance power delivery. Perfect for modern devices needing reliable charging.

Mitchell006

05-30-2016, 12:18 AM #4

Check out this USB-C adapter from Dell. It connects to your PC and supports high-performance power delivery. Perfect for modern devices needing reliable charging.

carter7732
Member

06-04-2016, 07:42 PM

I checked the 130W models available in the office, and the standard output voltage is 5V, which confirms it functions as a proper PD source. This suggests the problem isn’t related to your power supply.

carter7732

06-04-2016, 07:42 PM #5

TdmFan92
Senior Member

602

06-05-2016, 10:28 AM

Avoid using excessive wattage. If you connected a non-standard charger delivering a stronger voltage, treat it as completely faulty.

TdmFan92

06-05-2016, 10:28 AM #6

Avoid using excessive wattage. If you connected a non-standard charger delivering a stronger voltage, treat it as completely faulty.

SayNoToNWO
Posting Freak

879

06-05-2016, 06:14 PM

I checked it and it showed 15v, that’s correct... :c Is there a method to improve it or is it fixed?

SayNoToNWO

06-05-2016, 06:14 PM #7

I checked it and it showed 15v, that’s correct... :c Is there a method to improve it or is it fixed?

Gfiti
Member

103

06-07-2016, 07:37 AM

It doesn't function that way. The USB-PD standard is designed to deliver 15V, yet it defaults to 5V if negotiation fails. It's possible Dell produced non-PD, non-5V USB-C chargers—though a true 15V output would likely require replacing the entire board.

Gfiti

06-07-2016, 07:37 AM #8