Silent PSUs - Seasonic X650 and ?

[ingodwestream]

Is the Seasonic X650/750 the only 80Plus certified power supplies that dont have the fan kick in until a load or temps rise? This is the psu i'm considering for a high-end HTPC.... this is a great feature...any other manufacturer have this? I know Silverstone makes a fanless psu...but i want the security of if things get out of hand...a temp-controlled fans spins up.

 

[someguynamedmatt]

You may want to consider the OCZ StealthXStream series.
http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&DEPA=0&Order=BESTMATCH&Description=stealthxstream&x=0&y=0
I have a similar OCZ PSU, and it's been rock solid ever since I purchased it. The Stealth series does have a fan, but speaking from experience, the one I saw was absolutely silent under a moderate load. It's over 85 percent efficient, too, although it doesn't have the 80plus certification you were looking for.

 

[davcon]

The Enermax Modu series and Antec Signature series are also very good
but as Timop pointed out none of these have the fanless feature of the Seasonic X
when running on low loads

http://www.silentpcreview.com/Recommended_PSUs

The new Corsair X series might have this feature

 

[ingodwestream]

thanks members...I'm really going for the feature here...this will be a demo unit and i want to "wow" them with litterally no noise. the case is the thermaltake mozart vc7001 i picked up on clearance. http://www.newegg.com/product/product.aspx?item=N82E16811133029
going with silent case and cpu cooler fans.... thanks for reminding me about Enermax..i had a noisetaker that was suprisingly quiet....and will check out Corsair X also.
Just wanted to confirm the Seasonic had a relatively exclusive feature. Thanks!