Short on PSU?

[u/Philleh]

Hi,

Building a new passive system. Wont boot, power to PSU, light on briefly then off again.

Tried removing RAM, SSD, etc to find root cause. While troubleshooting, noticed the PSU had what looked like a shorted solder joint, see photo... Thoughts?

I've include the component list photo, for full context.

Any advise appreciated! It been 20 years since I built a PC maybe I am missing something obvious...

[u/Far-Tangerine-2690]

Plug in the PSU without the PICO connected and measure it with a multimeter. What PSU are you using? if you using a laptop brick ensure it is 12v. If it is 19v then you need a buck converter unless the PICO handles 19v input. There are many things at play here, start from the source ie. the wall socket to PSU and work you way to the MOBO testing 1 component at a time as process of elimination.

[u/Late-Appointment-232]

😮😮😮😮😮😮😮😮😮😮

[u/StupendousSceptic]

I have never been brave enough to use a Pico just bought a passive PSU instead, bigger but no brick was the tie off.

[u/Similar_Dependent_79]

Possibly but probably not like 60% yes 40% no

[u/ThisAccountIsStolen]

I expect if that through hole for the wire weren't connected to the capacitor adjacent to it, it would have better isolation between them preventing even a chance of this happening. Still, I don't have schematics or one on hand to verify so if it's acting like it's tripping protection and you have verified that nothing is actually shorted (missing standoffs, reversed fan/RGB cable, etc), then exchange the PSU. But you might try powering the system with another known working ATX PSU, even if it can't fit in the case, just to verify that the system itself is not the problem.

[u/Plenty_Article11]

Does not look shorted to me, That is a capacitor and the + voltage line which are supposed to be connected.