Power consumption in desktop computers

[Martin Cracauer]

Tim Kientzle wrote on Sun, Dec 28, 2003 at 11:22:10AM -0800: 
> 
> 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 wonder how that works.

I finally got ahold of a datasheet of P-4 power consumption:
http://support.intel.com/support/processors/pentium4/sb/CS-007999.htm#Table2

The least hungry P-4 takes 48.9 watts (1.30 GHz), the current 3.20 and
3.06 GHz models take 82 watts.

Add the mainboard and the efficiency loss in the power supply.

Are these business-grade ones maybe equipped with mobile P-4s?

Martin
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Martin Cracauer <cracauer at cons.org>   http://www.cons.org/cracauer/
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