I have two big ATX power supplies and I am trying to link them together and to start at the same time. so i have a dual ATX adapter. eg. https://www.ebay.com.au/i/263065818818?chn=ps&dispItem=1 the secondary psu is just linked to some expansion board and gpus. this is on a Tyan server motherboard. Anyway, when I start the motherboard, i get a TICK TICK TICK sound inside the secondary PSU. and the fan doesnt spin. I thought maybe it was a bad PSU so i swapped it for another one. and it makes the same noise. I noticed when i held the two wires of the dual-psu adapter the wires were hot! but from what i understand the two wires (green black) are just signal wires. So how the fuck are the getting hot?