So, I recently installed a Corsair RM650x that I bought the other month. Works fine so far, not many issues. However, I noticed something a few minutes ago. Was browsing my emails and I heard my PSU shut down, but the pc was still on. Didn't turn on or freeze or anything. Then, a few seconds later, I heard the fans spin up again. I know that this PSU has the zero rpm model, but it sounded like the thing had completely shut down. But, I don't think that it did as my PC was still on and functioning. Is this the zero RPM mode or is there something wrong with it? Fairly new to PC building and the like, so. Thank you in advance.