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In Reply to: RE: 0db alternative for PicoPSU: Winmate DD-24AX 130w posted by dexter3d@gmail.com on November 03, 2009 at 07:50:43
1. cics could respond in more details, but one of the reasons for Biostar mobo was its BIOS settings flexibility. Anyway, his recommendations for cMP builds since moved on to different mobo (Gigabyte) and different CPU (e7200/7300).
2. In case of quality linear PS feeding PicoPSU, 12V directly from the PS is actually a big plus, not disadvantage - and I'd risk to guess, much better than what Winmate could muster.
3. (related to #2): 16mV ripple is NOTHING like quality bench linear PS. Look at these specs here, for instance:
Specification for Topward 6000 Analog DC Power Supply
...
Ripple & Noise CV<0.5mVrms @ 100W; <1mVrms @ above 100W
...
That Topward 6000 psu is > 400$...
The question remains - why use linear supply, if the mobo itself involves switching?
'cause 2 swirchers make things worse!
for good reasons to stay away from the Winmate.
"We should no more let numbers define audio quality than we would let chemical analysis be the arbiter of fine wines." N.P.
why bother using a non-standard supply like the "Winmate" when *much better* standard ATX switching PSUs are available? FYI, the recommended cMP ATX PSU, Antec EA430, has a measured ripple of 6mV.And the obvious answer to your question: because a computer powered by (even if only partially) linear supplies is "sonically" superior than its SMPS-powered counterpart!
Why else? Convenience, less heat emission, or 80plus efficiency?
"We should no more let numbers define audio quality than we would let chemical analysis be the arbiter of fine wines." N.P.
Edits: 11/03/09
I agree that the key is listening. Anyway it's 30 bucks and fanless, I will do some testing against Corsair when I receive it, using k701+Shanling P100. Probably gonna buy PicoPSU + borrow linear supply as well for testing.
Btw, where can I get this updated version of 'Art of building pc transports'? I have v0.3, year 2007 so it's pretty outdated.
See link for the updated official documentation. I also strongly recommend you to go through the massive cPlay and cMP threads on this forum.
"We should no more let numbers define audio quality than we would let chemical analysis be the arbiter of fine wines." N.P.
N/T
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