Re: System power question

There should be a difference as the POWER5 chip does have some power
management functionality.

I couldn't find any IBM documention on the TDP of the POWER chips, but one
website estimated POWER5 at 170 watts.

In addition, while it takes energy to spin the disks, also consider power
required to move the heads.

I would expect a different of up to a couple of hundred watts between
restricted state and a busy state for a single CPU system.

If you really want to know, assuming the 525 takes standard 120 volt AC, you
could get one of these:
http://www.p3international.com/products/special/P4400/P4400-CE.html

Charles

On Mon, Dec 15, 2008 at 4:30 PM, <ChadB@xxxxxxxxxxxxxxxxxxxx> wrote:

OK... this is a strange question...


Picture an i5 system (a 3800 cpw 525) that is powered on and humming away
as it processes work to support Mimix replication, a Domino server, and a
WAS/HTTP server.

Now picture that same i5 system (a 3800cpw 525) that is powered on and
sitting in restricted state.


Now here's the question... are they consuming approximately the same amount
of electrical power from the circuit (conditioned by the UPS, of course)?
If there is a difference in the electrical power being drawn, is it a
significant difference? I'm looking to get a handle on this question... I
can make a guess, but i'd like to hear from someone who is certain of the
answer!




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