R. Scott Belford wrote:
Brian Chee wrote:
My biggest bitch about "normal" machines is that I want my NAS up all
the
time and a 350watt power supply could potentially add something like
$20/month to my electric bill....
As a partial aside - if a power supply is rated at 350 watts, does
this mean that it constantly pulls 350 watts? If so, I may need to do
a costs-benefits analysis of my own pc based file servers.
/brian chee
--scott
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No, a 350 watt power supply won't draw 350 watts constantly. There is
a minimum current draw for the supply, even when idle. Also, remember
that the "350 watts" refers to the total output of the supply. Most
supplies are 60 to 90% efficient, so the actual current draw would be
greater than the output specification. For instance, the Seagate 750Gb
SATA-2 drives draw 12.6 watts during seek, read and write operations
(this according to their specs). The motherboard/cpu compination draws
a certain amount of power. One can figure out pretty closely what the
actual power usage is for a particular computer setup.
DaveK
<http://www.seagate.com/cda/products/discsales/marketing/detail/0,1596,756,00.html>
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