saving power in a Dell Poweredge 750.

[George Hartzell]

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.