Hi I got my NVMe base recently but I can’t seem to get my M.2 module to power-on. I soldered on 5V to the test points and was able to see 5V making it’s way onto what looks like the input capacitors.
However, when I probe what looks like a 0-ohm resistor on the output side I’m seeing 0V. The board I’m using requires 3.3V to operate.
Am I missing anything obvious here? It’s hard to tell, but I think the IC/regulator is soldered on okay, but it’s very small.
I’ve tested both with a RP5 connected and supplying the 5V (verified), and with my own DC power supply.
Reads 0.0V ❌
Okay I re-flowed the power IC and when being powered with the PI I was able to get 3.3V. I think it has to do with the PCIE_PWR_EN signal that’s likely going to the regulator. My PCIe board powers up for a second and then powers off.
Any recommendations on how I can force PCIE power to stay on? It seems like it’s doing some kind of probe, and then turning it off.
EDIT: Got it powered on now after soldering a wire to the 100k pull down (right most resistor of the group of three up top) and forcing that to 3.3V. If anyone knows a way to have the PI do this rather than hacking it like this let me know!
