Agreed.
I'd contact their customer service to see if they will fix the issue before swearing them off forever.
All companies will have a few duds slip through their RMA departments, and from what I've seen over the years from other users here, Seasonic is pretty good handling that stuff.
So recent update:
I did contact Seasonic and they had me record the sound and email them the audio file. Based on that, they approved a 'return' which was really having me break the warranty seal, remove and cut the label and destroy the PSU beyond repair and send them pictures of all those steps. So I did that and they had their US location send me another unit. Well, guess what... Yes, the new unit has the same loud rattling fan.
You may think I am just sensitive to fans, but this is a noise that they were able to verify on the first unit I sent in, then by the audio recording of the next unit they sent me. Makes me wonder what else are they not checking before they send out RMA units to customers?
At this point I don't think I can justify spending more time on this and I will just cut my losses with Seasonic and their warranties... Besides, it just killed me to destroy a perfectly good PSU that just needed a new fan - see picture
