Power draw of power supply. 700watt vs 1000 watt, etc

[William Park]

Well, that's true.  But, I think OP is asking "conversion efficiency".
Most PSU box has some rating that is 80+ (regular, bronze, gold) at 20%
50%, and 100% load.

On Sun, Jun 27, 2010 at 11:10:27AM -0400, John Martin wrote:
> Whatever power you draw from the wall will end up as heat. The useful
> power will end up as heat in your components: CPU, memory, drive,
> video card, etc. The useless power, that wasted due to inefficiency of
> the PSU, will end up as heat in the PSU itself.
> 
> 
> John
> 
> 
> On Sat, Jun 26, 2010 at 9:17 PM, ted leslie <tleslie-RBVUpeUoHUc at public.gmane.org> wrote:
> >
> > I am planning a new computer and have researched powersupplies.
> > The
> > Zalman ZM1000-HP
> > seems to be the best (in my criterion of low noise, quality and power).
> > But, I probably will only be grabbing 600-700watts from it (at this time) max.
> >
> > All things considered equal,
> > what is the power draw of a 700watt PSU loaded up say 600watt in use,
> > vs a 1000watt PSU loaded up to same 600watt use? (i have a suspicion its not 600watts in both)?
> > In otherwords, I don't mind having the 1000watt unit for its quality and future expansion,
> > but if it  ends up using 50-100-150-200 more watts (for what ever reason), and I run my PC 24/7,
> > it may not be a case were getting the big rig is the smart choice.
> > I know if you relate it to "class a" amp. theory, it has to be full power hungry so it can render
> > the amplication immediately. And with a PC-PSU i don't know if to deliver 1000watts (when needed), it
> > has to use more (to be prepared for immediate delivery when required) then a lesser watt PSU.
> > In addition this Zalman unit says it can handle peak of 1250.
> > Also, under equal loads, will the larger unit create more heat? i guess naturally if it did use more
> > wattage, it would thus create more heat.
> >
> > I know you always want a supply that is rated for more wattage then you are going to ask for, with a decent
> > (whatever that would be) buffer, but can you take a hit in your home hydro bill if you go for a
> > monster supply (all be it "with same efficiency rating"?), and never use the extra room?
> >
> >
> >
> > --
> > ted leslie <tleslie-RBVUpeUoHUc at public.gmane.org>
> > --
> > The Toronto Linux Users Group.      Meetings: http://gtalug.org/
> > TLUG requests: Linux topics, No HTML, wrap text below 80 columns
> > How to UNSUBSCRIBE: http://gtalug.org/wiki/Mailing_lists
> >
> --
> The Toronto Linux Users Group.      Meetings: http://gtalug.org/
> TLUG requests: Linux topics, No HTML, wrap text below 80 columns
> How to UNSUBSCRIBE: http://gtalug.org/wiki/Mailing_lists

-- 
William

--
The Toronto Linux Users Group.      Meetings: http://gtalug.org/
TLUG requests: Linux topics, No HTML, wrap text below 80 columns
How to UNSUBSCRIBE: http://gtalug.org/wiki/Mailing_lists