Date: Wed, 10 Jan 2007 09:34:21 -0800 From: George Hartzell <hartzell@alerce.com> To: freebsd-stable@freebsd.org Subject: saving power in a Dell Poweredge 750. Message-ID: <17829.9117.888327.881204@rosebud.alerce.com>
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I'm setting up a Dell Poweredge 750 1U server. A friend is loaning me space in his rack and since his rack usage is limited by power I'd like to be as thrifty as possible. I hooked my kill-a-watt meter up and ran the machine for a couple of days and it uses 88 watts (3.90KWH/44.01H). Then I kldloaded cpufreq and enabled powerd and it still uses 88 watts (8.35KWH/93.47H). That surprised me a bit, and seems to suggest that it's spending most of its energy spinning fans or something. Is anyone familiar with the poweredge 750 and freebsd-stable? I can't find anything in the bios that suggests fans control, although I guess it's possible that they're running efficiently by default and I just haven't caused them to *really* run. Any other suggestions to help economize? Thanks, g.
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