Built ATX PSU to Multi-Volt power supply. Voltage drops when applying load, what may be wrong?
I tried grounding directly to the PSU chassis, I cut the wires to the 5v USB ports (these did not work anyway, perhaps because I have no sandbar resistor?) and also tried to give power from the wires only related to the 24 PIN molex connector or only from the 4 pin connectors, all with the same symptoms. Anyone have any clue as to what may cause this anomaly?
My plan was to use the power supply as a substitute for a battery to run power in my caravan, converting straight from the 220v. There are only a set of lights and a small water pump running on the circuit, adding up to approximately 200 watts if everything is turned on. I figured the PSU would be sufficient to do this, but maybe I am mistaken?