Has anyone looked into those RSG fanless units?

PSUs: The source of DC power for all components in the PC & often a big noise source.

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LeoV
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Post by LeoV » Mon Aug 12, 2002 2:32 pm

I noticed them on the page <!-- BBCode Start --><A HREF="http://www.rsg-electronic.de/english/pr ... dklick=104" TARGET="_blank">linked</A><!-- BBCode End --> from the new Recommended Parts section here. Of particular interest is the ECP230W model:
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<BR>The interesting thing is its quoted efficiency is an incredible 82-85%! In a computer consuming 100watts, a typical 62-65% efficient PSU might produce (100/.62)-100 = 61.3 watts of heat from inefficiency. However, if true these RSG units would only generate (100/.82)-100 = 22.0 watts!
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<BR>The problems are:
<BR>1) It seems to use the AT form factor, not ATX.
<BR>2) It seems to be impossible to obtain.
<BR>
<BR>If anyone knows anything further, your comments would be very helpful.
[addsig]

MikeC
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Post by MikeC » Mon Aug 12, 2002 2:32 pm

I saw it too and didn't believe it. There's not a single PSU on the market that claims any higher than ~75%. How they'd get 82-85%, I don't know.
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<br>Tomas Risberg of TheSilentPC was the one who first alerted me to RSG & he and I both requested review samples for SPCR, to which they replied no. I could ask again...
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LeoV
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Post by LeoV » Mon Aug 12, 2002 2:32 pm

Hi Mike,
<br>It's probably not worth the trouble. I could only find <!-- BBCode Start --><A HREF="http://groups.yahoo.com/group/Silent-PC/message/3712" TARGET="_blank">one case</A><!-- BBCode End --> of a person actually obtaining one. Besides, modding an ATX connector onto it might be risky! And RSG's 300W ATX model is only 70% efficient, nothing interesting.
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<br>Here's another find: claimed 85% efficient 170W ATX <!-- BBCode Start --><A HREF="http://www.signumdata.de/english/td_fclient.htm" TARGET="_blank">supply</A><!-- BBCode End -->. Unfortunately requires buying a >$1500 system.
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<br>And <!-- BBCode Start --><A HREF="http://www.n2power.com/XL125bene.htm" TARGET="_blank">this unit</A><!-- BBCode End --> is a 125W PSU with claimed >85% efficiency. Allegedly, an ATX version was planned for release in Q2 2002.

Edwood
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Post by Edwood » Wed Aug 28, 2002 5:17 pm

That small 125 watt one is just like industrial open frame psu's like one's made by EOS. Notice that it says it still needs a fan, albeit a really low flow one.

I have a 130watt EOS VLT series one about that same size. It has a slight buzz noise, more like soft clicking. Can only hear it if you put your ear up to it.

-Ed

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