From: CFKinsey@military.org.jp   
      
   On Fri, 21 Feb 2020 03:39:41 -0000, whit3rd  wrote:   
      
   > On Wednesday, February 19, 2020 at 11:43:15 AM UTC-8, Commander Kinsey wrote:   
   >   
   >> The supplies I'm having bother with are not that old, probably 5 years.    
   But they were the second cheapest.  They also lie on their specs.  They're   
   sold as 850W supplies, but you can only draw 650W of that on the 12V line,   
   which is where 99% of the    
   power goes in a modern PC.   
   >   
   > Some modern PCs, sure.   
      
   All.   
      
   > The 'specs' proably told you about that 650W limit, and   
   > that means they were NOT lying.   
      
   It's on the label on the side, but it's sold as an 850W supply, which it   
   isn't, so they're lying.  It's like selling a car which can go 150mph, but   
   only downhill.  Technically yes, it can go 150, but not in a useful way.   
      
   >> Nowadays, aren't all the chips running at about 1V and powered by their own   
   VRMs, fed off the 12V line?   
   >   
   > Only the CPUs, high-density LSI and some RAM use those low voltages; it's a   
   scaling thing.   
      
   So pretty much everything in the computer.   
      
   > The mobile-PC crowd uses 12V raw power   
      
   No, 19V.   
      
   > with DC/DC converters to provide ALL the ATX   
   > power pins' outputs; you might consider a 12V-only source instead of an ATX   
   supply   
   >   
   >    
      
   Find me a 1kW version I can get in the UK, and not from Amazon.  I wouldn't   
   trust those Charletons with a bargepole.   
      
   In fact nevermind, I've already got one from China.  Unfortunately there's   
   nothing nearer me so I'll have to wait a month for postage.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)