AX760i tick-sound

Hi!

Recently I bought a Corsair AX760i psu. After a few days I noticed that it made a very mild tick/click sound every 10 seconds. It was hardly noticablble but if one listened very close to the psu with nothing coming from the speakers in a completely quiet room, it was there. So I had it returned to the vendor who confirmed the sound and sent me a new one. To my surprise the new psu has the exact same sound and after doing some googling I found others who's having the same sound coming from their AX760i's.

Now, my questions; since the sound itself posts no problem (as I explained it's much too weak to be noticed under normal circumstances) I'll be quite happy to keep the psu, since it's a very nice psu. BUT, I need to know if this sound is common/normal on this model? WHAT is making this sound? Does it compromise the psu's function or lifespan in any way?

Kind regards,
Martin

Hello Greybeard!

Actually, the sound is only heard when the psu-fan is NOT spinning. The sound was verified by the vendors serviceteam on my first unit (so they sent me a new one). One suggestion I found when googling this issue is that it's some sort of pulse going to the fan when it's not spinning. And if the psu's load is to little (below 20% I think) the fan decides not to spin up. I was hoping you could verify this.

As written in my first post, the sound is too weak to be heard under normal cirumstances so I don't care about that. However, what I do care about is wether this is a defect that affects the function or lifespan of the unit. But since the second psu has the exact same sound it seems most likely, at least to me, that this is something normal for this model. If not, then I have been really unlucky receiving two defective units.

The system is very stable. No shutdowns or strange behaviour whatsoever.

Thanks for clearing things up:-)