Question New PC won't boot

Jun 22, 2020
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Build:
Ryzen 5 3600
ASRock B550 Steel Legend
Gigabyte 2070 Super
Corsair Vengeance RGB Pro 16GB
Corsair RM750

I built my 2nd ever gaming PC today and was going well until I tried to post. When I flick the switch on the PSU to on the fans light up and spin for a millisecond then turn off immediately and then when I try to turn it on from the switch or manually with a screwdriver I get nothing.

My first thought was a faulty PSU however I tested it with a paperclip and it ran fine for about 10 seconds then shut off which I read was normal so everything should be fine there. I also made sure all my cables were properly seated and they were however I noticed when I plug in the 24 pin connector I didn't hear a clicking noise which I thought you usually get, could be nothing just thought it was worth noting. I took out my GPU, reset CMO's, pretty much everything from any forums I could find and still nothing.

One thing I did notice is that when I wiggle the 24 pin connector sometimes the fans and lights will spin and light up again so I feel like it might be a motherboard or cable issue but am unsure of anyways to test that. I was just wondering if anyone has had any similar issues or any advice on how to fix it and anything is greatly appreciated. Thanks!
 
Jun 22, 2020
4
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The paper clip test cannot prove a psu works, it can only show if a psu is completely dead. Just because the fan spins does not mean the psu can deliver the correct voltages under operating loads. Can you test the system with a different psu?

Unfortunately not. Is there any other way to test the voltages actually coming out?