Date: Wed, 16 Nov 2005 13:58:48 -0500 From: Mark Bucciarelli <mark@gaiahost.coop> To: Chris <chris@childeric.freeserve.co.uk> Cc: freebsd-questions@freebsd.org Subject: Re: Status of 6.0 for production systems Message-ID: <20051116185848.GZ588@rabbit> In-Reply-To: <437A7450.7070006@childeric.freeserve.co.uk> References: <LOBBIFDAGNMAMLGJJCKNOEMHFCAA.tedm@toybox.placo.com> <437A7450.7070006@childeric.freeserve.co.uk>
next in thread | previous in thread | raw e-mail | index | archive | help
Wow, did this thread veer off-topic!
On Tue, Nov 15, 2005 at 11:50:40PM +0000, Chris wrote:
> That is indeed a waste but consider that in that year the PC at 150
> watts
This is probably a high estimate, especially for an older, single-cpu
box.
> has consumed 60 times as much power as the router at 2.5 watts. I make
> that 1314kWh for the PC and 21.9kWh for the router 24/7 for a year.
> Anyone know how much power it takes to manufacture and deliver a small
> router? And maybe other routers last a bit longer.
You can probably get an idea from extrapolating these figures [1]:
RAM: 11.4 kWh and 32 L water for 32 MB chip
CPU: 1.4 kWh and 5.9 L water per square-cm silicon wafer
LCD: 553 kWh and 2394 L water for a 15" monitor
A dragonball CPU (2 dies each .343cm x .343 cm) requires 0.3 kWh and
1.4L.
The impact of producing a CPU seems low to me, especially when compared
to the RAM. Needs to do some more research ... :)
m
[1] Environmnetal Implications of New Wireless Technologies:
News Delivery and Business Meetings
by Michael W. Toffel, Haas School of Biz, UCal Berkely
and Arpad Horvath, Civil Eng, UCal Berkely
accepted for publication 3/18/2004 in American Chemical Society
http://www.haas.berkeley.edu/responsiblebusiness/documents/wireless_asap.pdf
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20051116185848.GZ588>