[SOLVED] Power Up Raspberry Pi 4 B

[ASCII8BiT]

Can i power up raspberry pi 4 b from this TP7/TP12 pins? and which is is ground, which is it VCC?

[jdb]

TP7 and TP12 are connected to the same thing - ground. See the trace connections between the two test points and the ground fill?

To power a Pi 4 from an external 5V source, use the GPIO pin header 5v/GND pins.

https://pinout.xyz

[ASCII8BiT]

TP7 and TP12 are connected to the same thing - ground. See the trace connections between the two test points and the ground fill?

To power a Pi 4 from an external 5V source, use the GPIO pin header 5v/GND pins.

https://pinout.xyz

so can i power up Raspberry pi from gpio 5v and ground pins am i right?

[trejan]

so can i power up Raspberry pi from gpio 5v and ground pins am i right?

Yes but any wiring mistake is very likely to kill your Pi. Only make the connections when everything is off and double check it before turning it on. You'll need good quality cables and connectors or you'll get a voltage drop at the high currents the Pi 4 can require.

[davidcoton]

The Pi is protected from reverse and overvoltage (testing this assertion is NOT recommended!), but on the Pi4B the protection relies on the current being limited BY THE PSU. If you are using a supply capable of more than 3A, you should add a polyfuse rated at 3A to protect the TVS diode.

And as one regular poster here has said from experience, if you do apply the wrong voltage, the protection may only work once. Don't be tempted to fix that by removing and not replacing the TVS diode. If you do, and then repeat the mistake, your Pi will be fried.

[LTolledo]

If you have confidence in your soldering skills:
from the schematic
TP1 = 5v
TP7 = GND
use at least AWG20 stranded wire (not solid core wire)
apply non-metallic tape or hot glue to the wires after soldering to serve as stress relief.

if no confidence in soldering skills,
power the board via GPIO header pin 2 (5v) and pin 6 (GND).
don't use regular dupont jumper wires as power in wires (those are very thin AWG24 wires)

for both methods, check and double check before applying power.
also make sure your power supply unit (not just any charger) can output 5.1v and deliver at least 2.5A.

[Burngate]

... from the schematic ...

https://www.raspberrypi.org/documentati ... educed.pdf