[SOLVED] Argon ONE V3 died suddenly and wont power on

[HarryH]

Depends on the 27W PSU you chosen. Is that an official PSU or 3rd party? The RPi5 is very sensitive regarding this, because it needs to support 5.1V + 5.0A current negotiated via Power Delivery protocol. Additional it must very stable and switching fast enough to support the fast load switches of the RPi5. The Argon ONE V3 case is an additional load. Maybe the PMIC inside of the case is more restrictive.

But, because of some feedback from other users, its possible that you should try to assemble the daughterboard again.

Argon One v3 Not Powering On

I had a lot of trouble getting it to power up at first. Make sure you line up the USB C port on the daughter board with the RPI5, then make sure the micro HDMI are lined up, but apply most of the force on the side where the USB C port until you hear it click into place. There is a convenient notch on that side by which to push. It takes more force than expected but once you hear the “click”, you are good to go. It took me three tries to figure that out.

Or in the worst case there are some bad soldering points. Unfortunately it seems to happen more often. If you have the skills, use a multimeter and check for example if the jumper plug is properly solded:

Argon One V3 for Raspberry Pi 5 - not powering up

thank you for your tip, pin 2 was not soldered to the pcb at all. after fixing that, the PI started up immediately after i plugged in the power.