[OT] Re: Electricity Usage (was Wireless Cards)
shane at hathawaymix.org
Mon Nov 7 09:59:17 MST 2005
Jason Holt wrote:
> On Mon, 7 Nov 2005, Shane Hathaway wrote:
>> However, note that seemingly minor hardware differences change power
>> consumption significantly. The computer I built for my dad has an
>> Athlon XP 3000. It draws 120W most of the time and 160W when it's
>> busy, so it needs much more airflow than mine. (But his cost less
>> than mine and he uses it less, so it all works out.) His originally
>> had a 300W PSU, but the PSU died soon after I burned a DVD!
>> Apparently, burning a disc takes enough power to push some PSUs over
>> the edge.
> Fascinating. Does your meter take into account power factor? Your
> Dad's power supply could be more inductive than your own. Apparently,
> in some countries you have to pay extra for inductive loads.
The meter provides both VA and wattage readouts, but I forgot to look at
the VA measurement, so I don't know whether the inductance differs much.
That would be important for choosing a UPS or connecting a lot of
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