[NCLUG] Linux on Sun Hardware
Jim Wildman
jim at rossberry.com
Wed Jan 23 09:55:03 MST 2002
No. Some switching supplies won't pull anything (except fan) until
they have a load. They might have a spike, but I've never seen one
pull full load when the load does not exist. (visions of opamps,
capacitors, resistors, and transistors dance in my head). I had
to breadboard a +/- 15V current limited switching power supply during
an EET lab.
Actually, I've never seen a server pull half of it's faceplate amps.
Usually because it is designed with a particular set of drives in mind.
By the time I see them, they have more efficient drives...
------------------------------------------------------------------------
Jim Wildman, CISSP jim at rossberry.com
817-308-3868 http://www.rossberry.com
On Wed, 23 Jan 2002, Mike Loseke wrote:
> Thus spake Jim Wildman:
> >
> > You do realize that they use nowhere near 15 amps unless they are fully
> > loaded with RAM, and disks?
>
> What about draw during power-on? Don't those PS' pull all they can when
> first turned on?
>
> /me sits back and waits for the physics lecture
>
> >
> > On Tue, 22 Jan 2002, Michael Dwyer wrote:
> >
> > > So, I have, like, four of these Sun beasts. I only got one running, and
> > > even then figured that it was sort of silly to run a machine with a 15
> > > amp nameplate 24/7 just to prove that I could... So, they are set up
> > > around the pool table as benches.
> >
>
>
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