Hi there,

I hope you can help me solve the problem with my Minisforum UM890 Pro. It's not booting. It pulls 0.5A at 20V with no RAM installed. That seems like a healthy current draw. The core gets the required voltage and heats up. However, when i install RAM (known good Samsung DDR5 4800 SODIMM) it pulls 0.1A at 20V and there is no voltage at the core. I tried both slots and different RAM, but the symptoms stay the same. I tried removing the BIOS-battery and pushing the reset button for > 10 seconds. I replaced a RT6228A synchronous step-down converter that was getting warm when...