First computer build ever so I'm a bit unknowledgeable and a little easily rattled. Seasonic 750 Focus+ Gold PSU came in, and it has a test clip that shorts the ON to ground pins. I hook up the power supply and with the pin, hybrid mode is not on, and the fans spin up once and stop. I understand that some PSU's are designed to spin less at lower temps, but I don't think it shouldn't be spinning at all... It sounds like an RMA issue, but wondering if someone can give me some additional insight to what might be going on here.