Failed. Warrenty not helpful unless you can have your computer down while it goes through the rma process.

do not buy, would be an alright psu if it wasnt for its horrible flaws, fan zero rpm mode is very well implemented and I'm a fan of the clean look and affordable/competitive price. I did experience a few system shut offs just randomly at the beginning that has seemed to fade(maybe it was just luck/lack thereof). But THE WORST PART OF THIS PSU IS THE COIL WHINE. THE COIL WHINE IS SO BAD NO MATTER THE CIRCUMSTANCES. I tried troubleshooting but that did not provide any benefit. On paper it seems to be a pretty ok psu especially for the price, that is of course if you can stand THE WORST COIL WHINE EVER EXPERIENCED. The coil whine is so horrible I am returning it. I DO NOT RECOMMEND THIS PRODUCT THE COIL WHINE IS SO HORRIBLY LOUD.

I'm using this 650w Seasonice SFX for a SFF living room PC build in a Silverstone Sugo 16 case.For initial testing, I hooked this up to my main PC (running a 3080 ti), and overclocked the gpu so that total system power draw was 630w. I ran it for 20 minutes with no issue and I eventually got bored. I was satisfied it could handle anything I would use in the SFF PC (would be much lower power draw). The fan made noise, but at 630w, it was impossible to hear over the rest of the cpu and gpu fans anyway. At reasonable power levels, the fan is essentially inaudible.I've switched it over and have been gaming on it for several weeks at around 300w or so. Works perfectly, and I picked it up on a good sale.Overall: quiet, reliable, lots of connectors. Would purchase again.

I mistakenly ordered a Seasonic PSU that was not an ATX size format (my bad). That however was not the problem. The CPU cable was not in the box and it caused me to lose a day trying to hook it up. The power supply came with a very nice adapter plate with which to mount it in an ATX size case.It should be said here that this unit was purchased to replace a 14 year old Seasonic which finally quit, costing me $4.29 per year of ownership. I was sold on Seasonic. I tried using the cable from the old unit for the CPU but Seasonic in their absolutely infinite wisdom changed their PSU so that old cables don't fit.I can't really rate noise level because I couldn't get it running.The new flat ribbon style cables are stiffer in my opinion and much harder to work with. I do not like them. Air flow isn't that important to me.Side notes: I contacted Seasonic to try and get some help, their last contact with me was please send some pictures which I may do but it would have been simpler and would have saved everybody time to just have dropped a new cable in the mail at my expense.The 24pin cable did need a short extension cable.In my opinion the PSU itself and the accompanying cables are poorly marked. Not at all what I expected from Seasonic after my first experience.

It was my first Seasonic product and my last, it didn't work out for me unfortunately. After laboring assiduously to replace the cables and power supply in my Sugo 16, with what I thought would be a quieter power supply, I began to sense, to my shock, a very loud and irritating coil whine ! (well, when is coil noise not hurtful to the senses..). If we rule out bad design and assume that I just got a bad unit, it's still disappointing, to say the least, for their quality control to let this pass through. The good thing was that it made me appreciate my previous power supply, whose fan I now find quite pleasant.