Corsair AX860 can't jump start HELP PLEASEEEE!!

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Here's a quick video showing what happens when i try to jump start it. I have just completed my loop and trying to jump the PSU so that I can leak test. The PSU is connected to a couple of LED Strips, I have tried connecting the HDD and SSD as well but still the same result.



I'm positive that the PSU works because I have been using it perfectly for the past 5 months, and the jumper shouldn't be loose, because I have tried using paper clip and wires, and I still can't get it to work.



ANY HELP IS APPRECIATED, I really need to use the PC asap :(



Thanks