On Wed, 2007-Jan-10 09:34:21 -0800, George Hartzell wrote: >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).
What was it doing for those couple of days? If it was just sitting idle then I would expect the power consumption to be fairly close to what you get with powerd. If you want to see peak power consumption, try running a buildworld, something very FP intensive and something that is thrashing the disk(s) (lots of seeks and writes), all in parallel. >Then I kldloaded cpufreq and enabled powerd and it still uses 88 watts >(8.35KWH/93.47H). I presume you confirmed that cpufreq/powerd was actually functioning (ie the CPU frequency was being changed). >That surprised me a bit, and seems to suggest that it's spending most >of its energy spinning fans or something. PSU overheads, fans, northbridge, video, RAM, disk, ... it all adds up. I can't specifically help with the Dell. -- Peter Jeremy
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