Superdad Posted November 13, 2018 Share Posted November 13, 2018 12 hours ago, FredericV said: Sbooster BOtW mk2 is one of the options we use. Hi Frederic: It is customary here at CA for members of the trade (dealers and manufacturers) to list their industry affiliation in their signature and/or next to their user name. Thanks, —Alex C. UpTone Audio LLC Link to comment
Superdad Posted May 5, 2019 Share Posted May 5, 2019 17 minutes ago, tboooe said: NUC can also be run at 12v too right? Sure. And a great many NUC and Roon Nucleus users do so. davide256 1 UpTone Audio LLC Link to comment
Superdad Posted June 26, 2019 Share Posted June 26, 2019 2 hours ago, austinpop said: How this aggregates to determine the current rating for a suitable power supply is unclear. I do know someone who was able to successfully power the ATX input on his mobo, through the DC-ATX converter, using a 19V/5A rail on his SR7. I tried this experiment with another AS'er's SR7 with a 19V/6A rail and ran into an issue, but at the time I was unaware of this DC-ATX transient demand. I am not not understanding the need/desire to use a 19V DC-DC switching converter board when all the mobo rails call for 12V and below. Why not just use a picoPSU-160-XT (http://www.mini-box.com/picoPSU-160-XT) which passes through without converters the clean 12V from your nice power supplies, and uses DC-DC converters only for the 3.3V and 5V? You can be quite sure that the 19V>12V DC-DC switching converters on that DC-ATX board are nowhere near as quiet nor as low impedance as your SR7. Have you actually measured the total DC current draw of your motherboard? How much horsepower are you running these days? UpTone Audio LLC Link to comment
Superdad Posted June 26, 2019 Share Posted June 26, 2019 2 hours ago, PeterSt said: Because any 12V fed to a 12V ATX system will drop to lower (like under 11V) so the ATX system (yes, "system") shuts off. It is a bit of Ohm's Law in order here. In the end the main power supply isn't powerful enough (not enough buffer capacitance and else the transformer not beefy enough). Sorry Peter, I am not following you here. Thousands of people use the 12V-input picoPSU-160-XT ATX converter I linked to. The wiring harness of that model (as pictured in the link) passes the 12V over to the 4-pin connector unmolested, and also to the 12V pins of the 20-pin connector. It uses DC-DC converters only for the 3.3V and 5V. So as long as the 12V supply feeding the convenient DC-barrel jack has a decent amount of current, the computer runs great. Our own JS-2 7.4A 12V supply is powering hundreds of music servers this way. As long as the machine is not loaded up with a pile of drives or a hungry graphics card, it’s plenty of current for all but the highest wattage i7 machines. Not quite enough for 12-core Xenons or Ryzen monsters, but not everyone is running that. UpTone Audio LLC Link to comment
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