new 350W/420W fanless ATX by Yesico in Germany

jojo4u · Post by **jojo4u** » Thu Feb 26, 2004 6:14 am

Pc-Cooling.de offers new fanless PSU by Yesico. The price ( 190/220 Euro ) is good. It also has active PFC which means good design. The outer heatsink seems a little bit too small to me. But it has a aluminium casing to perhaps the case could also act as heatsink.
It delivers ~200W on the 12V line which is standard.

al bundy · Post by **al bundy** » Fri Feb 27, 2004 2:12 am

Here is a pic:

Notice it says "Only 230V" on it. I hope a version for the North American standard will also be released...

Fabool · Post by **Fabool** » Fri Feb 27, 2004 2:45 am

http://www.dirkvader.de/page/yesico.html

Here's a review of the PSU (in german).

dukla2000 · Post by **dukla2000** » Fri Feb 27, 2004 4:22 am

jojo4u wrote:It also has active PFC which means good design.

Nah - that is a mistake in the text at PC-Cooling. If you look at the label in the pic @ Dirkvader it is clear the 420 is passive PFC, and if you look at the pic of the box at PC-Cooling it seems the 350W is also passive.

The 1 page glossy avalable from the (German) 'Corporate' home page also shows P/PFC for both models.

Seal · Post by **Seal** » Fri Feb 27, 2004 1:50 pm

looks very nice, quick ralph get one to review! if its good then i'll probably buy one. Ill need a 420w though :/

larrymoencurly · Post by **larrymoencurly** » Sun Feb 29, 2004 4:46 am

I noticed that there are no registration numbers under the UL ("RU") and CSA safety certification insignias. Doesn't that meant that those certifications were faked? Can anybody point out a fanless ATX PSU that really is UL or CSA certified?

m0002a · Post by **m0002a** » Sun Feb 29, 2004 8:33 am

I am sure this has already been posted, but Antec is supposed to release a line of fanless PSU's this year.

The only problem I see is that a case fan will probably be exhausting warm air right below the heatsink fins. Anyone have a case with the PSU mount at the bottom?

Xman · Post by **Xman** » Sun Jun 06, 2004 9:01 pm

I plan to buy Yesico 420 watt fanless PSU but have read that usually such PSU should work at temperature not above 25 with and at the greater heating they can lose power to give out her less

Also it is rather strange that on a site there is no engineering specifications on PSU not clear where also by whom it{he} is made in Germany or on Taiwan, that is simple if in Germany as a rule quality of the German goods very high!

http: // sg.hardwarezone.com/priceguide/newsview.php? id=595
Before I have found this link I thought that it is only German firm! Now I doubt what that OKAYA not clearly who for whom releases this PSU

It turns out that for yesico.de this PSU are made by the Japanese firm okaya?
http://www.oec.okaya.co.jp
Also they are produced too in Japan? Japanese too are able to make excellent electronics!

And if fanless PSU to place not inside the case and to put from above on the case on a sticky tape (thermotape?), wires there long enough to get up to the bottom of the case!

There will be an excellent cooling and PSU will not be overheat!

And the case in general open to leave and put on CPU the big radiator with 12 Nexus fan. The fan by the way not necessarily rigidly fix to a radiator it is possible to suspend in general it in 3 sm from a radiator at me now so suspended on a wire for lattice PSUI plan to buy Yesico 420 watt fanless PSU but have read that usually such PSU should work at temperature not above 25 with and at the greater heating they can lose power to give out her less

Also it is rather strange that on a site there is no engineering specifications on PSU not clear where also by whom it{he} is made in Germany or on Taiwan, that is simple if in Germany as a rule quality of the German goods very high!

http: // sg.hardwarezone.com/priceguide/newsview.php? id=595
Before I have found this link I thought that it is only German firm! Now I doubt what that OKAYA not clearly who for whom releases this PSU

And if fanless PSU to place not inside the case and to put from above on the case on a sticky tape (thermotape?), wires there long enough to get up to the bottom of the case!

There will be an excellent cooling and PSU will not be overheat!

And the case in general open to leave and put on CPU the big radiator with 12 Nexus fan. The fan by the way not necessarily rigidly fix to a radiator it is possible to suspend in general it in 3 sm from a radiator at me now so suspended on a wire for lattice PSU

Somebody already is the happy owner of it fanless PSU? How it does not issue any hum?

Xman · Post by **Xman** » Sun Jun 06, 2004 9:18 pm

In a photo
http://www.materiel.be/alims/yesico/images/yesico11.jpg
http://www.materiel.be/alims/yesico/images/yesico10.jpg
It is visible that in it very qualitative accessories resistors, condensers etc. with high temperature of 105 degrees are used.

I think that for this purpose PSU even 80 degrees inside not a problem! Because it calculation on such operating conditions (space technologies of type:))

But on the other hand from for requirements to the sizes of the case psu that it{he} was in the sizes as usual inside all details are located very much, very densely!: (it is the big minus! Because there is no free air circulation at such circuit! Fanless PSU it is necessary to make ONLY external! On the case that were put from above. And the sizes of the case of them to make it is more as barebone PC approximately.

Inside modern hi-end PC too strongly heated processor and a videocard totally up to 200 watt of heat! Therefore time external PSU has come!

Also it is possible walls such PSU from two sides to make as the big aluminium black radiators and warmly on them to remove with heatpipes!

Edward Ng · Post by **Edward Ng** » Sun Jun 06, 2004 9:24 pm

Slightly off-topic, and not to be pessimistic, but...

Past experience with Antec's TruePower line of PSUs has shown low efficiency and pretty heavy coil whine as issues that Antec must deal with before they can successfully market a fanless PSU line.

I say good luck to them (or any other manufacturer, for the matter) in the silent PSU endeaver.

-Ed

Zigge · Post by **Zigge** » Fri Jul 23, 2004 6:06 am

Somebody interested in a test of the Yesico FL420-ATX 420W Noiseless power supply (in english)

?
http://www.akiba-pc.com/article.php?42.0

Zigge

Happy owner of a Zalman Reserator 1 and hopefully soon of a quiet PSU !

jojo4u · Post by **jojo4u** » Sat Jul 24, 2004 3:05 pm

Some info about this PSU was posted in this thread:

http://forums.silentpcreview.com/viewto ... ght=yesico

akaidiot · Post by **akaidiot** » Mon Jul 26, 2004 4:54 am

I posted about this PSU and the okaya connection and with links to several translated review 2 month ago here

*Proud*..

new 350W/420W fanless ATX by Yesico in Germany

new 350W/420W fanless ATX by Yesico in Germany

Re: new 350W/420W fanless ATX by Yesico in Germany