Date: Sun, 28 Dec 2003 11:22:10 -0800 From: Tim Kientzle <kientzle@acm.org> To: Martin Cracauer <cracauer@cons.org> Cc: freebsd-hackers@freebsd.org Subject: Re: Power consumption in desktop computers Message-ID: <3FEF2D62.8010906@acm.org> In-Reply-To: <20031225224609.A5326@cons.org> References: <20031225224609.A5326@cons.org>
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Martin Cracauer wrote:
> Here is what my powermeter thinks my desktops are using with various
> options:
>
> System 1 ("wavehh", FreeBSD-4-stable):
> - 1300 MHz Celeron
> Base power consumption with all drives: 99 watts
> - No drives connected: 82 watts
>
> System 2:
> - AMD Athlon XP 2500+ 1.83GHz
> Base system with all drives: 148 watts
Ouch! I've tested a bunch of 'business-grade' desktops around
my office, and they all run 40-60 watts during normal use (not
including monitor) with peak power at boot time up to 70-80 watts.
This includes some P4s with lots of memory, CD-RWs, etc.
(The one exception is an AMD Duron system; it seems that
the AMD processors are uniformly power-hungry.)
I'm told that Mini-ITX systems pull around 20w, if
you're serious about low power: I'm eyeing one of
those for my office mail server. Any decent laptop should
be under 30 watts.
Tim
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