Re: [PLUG] Comcast Cable modem & DHCP

[Gordon Dexter <gordon@texasdex.com>]

My Linksys WRT54G has a wall wart rated for 12V,1000mA output, meaning 12 watts.  I haven't used my Kill-a-Watt on it recently enough to remember exactly, but it was definitely no more than 15 watts.

A new Atom box would probably draw 20 or 30 based on some Googling.  Probably more if you have extra disks in it.  Actually, my i7-860 system only draws 60 when idle.  You should really check, because the results can be surprising: I have an old P4 that draws 60 idle and a dual Xeon that draws 95 or so, but meanwhile an Athalon XP 2500 from the same era drew over 160.

A very rough rule of thumb: A device that is on 24/7/52 and draws on average N watts will cost you $N per year.  For more precise figures, the Kill-a-Watt has a "cumulative KWH" option that you can multiply by your cost/KWH etc.  It's really a pretty nifty gadget, for example it told me how much my window AC was costing (answer: a lot).  The only drawback: I find myself disappointed that I can't use it to measure heavier appliances like my water heater or oven.

--Gordon

On Sun, Dec 12, 2010 at 5:17 PM, John Kreno <john.kreno@gmail.com> wrote:

Fellas,

 Most of your little brick powered routers and access points should
run no more than 15w tops. I mean, a few will exceed this number, but
not by alot. With the atom server, what are you using to do switching
and or your wifi stuffs ?

On Sun, Dec 12, 2010 at 10:55 AM, Julien Vehent <julien@linuxwall.info> wrote:
> On 12/12/2010 7:00 AM, JP Vossen wrote:
>>>
>>> Date: Sat, 11 Dec 2010 20:53:01 -0500
>>
>>  > From: Julien Vehent <julien@linuxwall.info>
>>
>>> 12/11/2010 08:26 PM, Carl Johnson wrote:
>>>>
>>>> > Your current links draws 50w?!
>>>
>>> No idea, just guessing. But it seems about right.
>>>
>>> That makes me think that I wanted to measure the consumption of this
>>> atom linux box, does anyone know where to get the equipment to measure
>>> that ? (for a reasonable price, say 20/30$).
>>
>> You want a kill-a-watt (check both spellings):
>> http://www.google.com/products?q=kill-a-watt&lmode=online&scoring=p
>> http://www.google.com/products?q=kill-o-watt&lmode=online&scoring=p
>>
>> E.g.:
>> $17+3 http://www.newegg.com/Product/Product.aspx?Item=N82E16882715001
>>
>> Or... A bunch of us have them, coordinate with someone and bring the
>> device to a meeting. I have one and can bring it to PLUG North next Tue
>> if you want.
>>
>
> Thanks, to the 3 of you, I'll order a kill-a-watt (or try to find one at
> microcenter).
> I'll probably experiment for a few weeks so it's better if I have my own,
> but I appreciate the proposition.
>
> As for the meetings, I'll definitely join them... as soon as I have a car :)
>
>
> Julien
>
> ___________________________________________________________________________
> Philadelphia Linux Users Group         --        http://www.phillylinux.org
> Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
> General Discussion  --   http://lists.phillylinux.org/mailman/listinfo/plug
>

--
John Kreno

"Those who would sacrifice essential liberties for a little temporary
safety deserve neither liberty nor safety." - Ben Franklin
___________________________________________________________________________

Philadelphia Linux Users Group         --        http://www.phillylinux.org
Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
General Discussion  --   http://lists.phillylinux.org/mailman/listinfo/plug

___________________________________________________________________________
Philadelphia Linux Users Group         --        http://www.phillylinux.org
Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
General Discussion  --   http://lists.phillylinux.org/mailman/listinfo/plug