Hello,

I need suggestion for my silent mini-ITX build and I'm torn between 2 PSU.

What is more silent between a Silverstone ST45SF (SFX size) or a ST50F-P (ATX Size)?

Both are rated form Silverstone a minimum of 18 dBa but should the bigger 12mm fan be a better for noise quality compared to the smaller 80mm fan?

Anyone have experience?

Thanks

The ST45SF is not silent.

Too bad SPCR did not test it but that's what I imagined. I need somthing that could not be heard at low loads.

Best choice for silent seems Nexsus NX-500 only 12cm deep but has not modular cables and they are very long by default.

Enermax Modu87+ 500W 80Plus Gold is 16cm deep but has modular cables so even if bigger maybe would be better for case airflow.

Even the Seaonic X-650 seems a good option as the fan seems not to even start at low loads but I don't know if would be ok in a hot small case.

I'll continue my search, any comment on those PSU is apprecieted.

Thanks!

If you are looking between 450 and 550W, if you have good airflow maybe a fanless psu like Seasonic SS-460FL $115 or if you want with a fan, Seasonic SS-560KM $135.

Actually it's a Lian Li PC-Q11, very small aluminium case with only one front 14mm fan invent.
I guess that a sort of fan at least under load to cool the PSU should make it more reliable.

Thanks!

I see you mentioned the new Seasonic X-560 / X660

I only considered PSU reviewed by SPCR

do you know have if it features the great noise performance of the older review here?

http://www.silentpcreview.com/Seasonic_X650

Well its the same line, they should behave similar, persnally i own a X 660 and i dont have any issues, passive at idle, very quiet at load, i think all the series would be a good pick just a matter of chosing the right wattage for you, that said, even the SPCR reviewed X400, some people experience buzzing sound, check X-400 buzz noise, or even the one you are considering, Seasonic X-650 - buzzing, still i went x400 and x660, both working perfect for me, i think its more the combination of hardware or bad luck, regardless seems a very low amount on the user reviews experiencing, so i think its low the chance, but its best to know it can happen before you commit.