Difference between revisions of "Power Usage"

From AwkwardTV
Jump to: navigation, search
m
m (Spam-A-Licious)
Line 1: Line 1:
[http://voltia.ifrance.com/content/view/hotel-.htm hotel 3 stelle] [http://oiyaoi.ifrance.com/images/small/il-giornale/ il giornale di calabria] [http://girlwho-is.ifrance.com/img/styles/frankie-i.htm frankie i energie] [http://oiyaoi.ifrance.com/images/small/xxt-platinum/ x850xt platinum edition] [http://oiyaoi.ifrance.com/images/small/airen/ airen] [http://igaros.ifrance.com/lib/giochi-adulti/ giochi adulti] [http://toofarfrommaybe.ifrance.com/view/new/fotomodelli/ fotomodelli] [http://lordsander.ifrance.com/topic/omoiga.htm omoiga] [http://tizolaa.ifrance.com/web/dolby-surround/ dolby surround sony] [http://broadwaylili.ifrance.com/content/view/un-medico.htm un medico in famiglia. prima serie. vol. 07] [http://yeeden.ifrance.com/img/styles/la-congiuntura/ la congiuntura] [http://broadwaylili.ifrance.com/content/view/toner-epson.htm toner epson epl 6200l] [http://noxuhax.ifrance.com/content/view/antiskid.htm antiskid] [http://voltia.ifrance.com/content/view/henly.htm henly] [http://lovereceier.ifrance.com/lib/cicciottella.htm cicciottella] [http://lordsander.ifrance.com/topic/good-bye.htm good bye lenin soundtrack] [http://singaporepets.ifrance.com/library/html/whirlpool-art.htm whirlpool art483 3] [http://speedofsoun.ifrance.com/text/directory/www-dvd.htm www dvd planet it] [http://jdawsona.ifrance.com/data/mis/ mis] [http://highbulp.ifrance.com/images/small/foto-giovanna/ foto giovanna rei] [http://tizolaa.ifrance.com/web/metro-srl/ metro srl] [http://highbulp.ifrance.com/images/small/adsl-michelangelo/ adsl michelangelo pci] [http://tizolaa.ifrance.com/web/cucurrucucu/ cucurrucucu] [http://singaporepets.ifrance.com/library/html/key-sat.htm key sat] [http://noxuhax.ifrance.com/content/view/notizie.htm notizie] [http://demurediablo.ifrance.com/library/html/disegno-cartone/ disegno cartone animato colorare] [http://tizolaa.ifrance.com/web/onkyo-tx/ onkyo tx sr] [http://tat-ooin.ifrance.com/resources/articles/piscina-termale.htm piscina termale trento] [http://tat-ooin.ifrance.com/resources/articles/vaio-shp.htm vaio s3hp] [http://toofarfrommaybe.ifrance.com/view/new/poeti/ poeti] [http://singaporepets.ifrance.com/library/html/candy-dulfer.htm candy dulfer] [http://lovereceier.ifrance.com/lib/concerto-di.htm concerto di capodanno vienna 1983 film] [http://yeeden.ifrance.com/img/styles/shdsl-router/ shdsl router] [http://jdawsona.ifrance.com/data/sigma-obiettivo/ sigma obiettivo 15] [http://igaros.ifrance.com/lib/astilbe/ astilbe] [http://igaros.ifrance.com/lib/vacuum-tube/ vacuum tube] [http://tat-ooin.ifrance.com/resources/articles/daewoo-lettore.htm daewoo lettore dvd] [http://oiyaoi.ifrance.com/images/small/decapitazione-coreano/ decapitazione coreano foto] [http://broadwaylili.ifrance.com/content/view/ischiaprenotazioni.htm ischiaprenotazioni] [http://lordsander.ifrance.com/topic/fotocamere-digitali.htm fotocamere digitali sony] [http://yeeden.ifrance.com/img/styles/le-mura/ le mura di gerico] [http://noxuhax.ifrance.com/content/view/ac-ackdc.htm ac ack-dc10] [http://kalian42.ifrance.com/text/directory/dvdtompeg/ dvd-to-mpeg] [http://girlwho-is.ifrance.com/img/styles/stampante-hp.htm stampante hp multifunzione] [http://demurediablo.ifrance.com/library/html/albergo-pensione/ albergo pensione rimini] [http://girlwho-is.ifrance.com/img/styles/lista-gioco.htm lista gioco pc] [http://speedofsoun.ifrance.com/text/directory/smackdown-opening.htm smackdown opening theme] [http://lordsander.ifrance.com/topic/avl.htm avl 89] [http://kalian42.ifrance.com/text/directory/panasonic-lumix/ panasonic lumix dmc-lc33] [http://kalian42.ifrance.com/text/directory/rilke-rainer/ rilke, rainer maria] [http://deviantrus.ifrance.com/topic/noleggio-aree/ noleggio aree bimbi] [http://igaros.ifrance.com/lib/guido-silvestri/ guido silvestri] [http://speedofsoun.ifrance.com/text/directory/spes-srl.htm spes srl] [http://lovereceier.ifrance.com/lib/sintonizzatore-radio.htm sintonizzatore radio fm] [http://oiyaoi.ifrance.com/images/small/dvd-lite/ dvd lite slim] [http://oiyaoi.ifrance.com/images/small/teresa-de/ teresa de calcut] [http://toofarfrommaybe.ifrance.com/view/new/gamecube-mansion/ gamecube mansion] [http://singaporepets.ifrance.com/library/html/la-volpe.htm la volpe - cuore selvaggio] [http://toofarfrommaybe.ifrance.com/view/new/simon-the/ simon the sorcerer 3d] [http://yeeden.ifrance.com/img/styles/ascolta-gigi/ ascolta gigi alessio] [http://kalian42.ifrance.com/text/directory/argentina-ristorante/ argentina ristorante] [http://igaros.ifrance.com/lib/sangiorgio-lava/ sangiorgio lava asciuga] [http://singaporepets.ifrance.com/library/html/rainbow-eyes.htm rainbow eyes] [http://voltia.ifrance.com/content/view/per-te.htm per te giovanotti] [http://toofarfrommaybe.ifrance.com/view/new/il-grande/ il grande ritratto] [http://igaros.ifrance.com/lib/philips-pf/ philips 42pf7320] [http://girlwho-is.ifrance.com/img/styles/jose-carreros.htm jose carreros] [http://highbulp.ifrance.com/images/small/www-omero/ www omero org] [http://igaros.ifrance.com/lib/enemy/ enemy] [http://akmokanzen.ifrance.com/images/small/compactflash-modem.htm compactflash modem] [http://singaporepets.ifrance.com/library/html/tc-tablet.htm tc4200 tablet pc] [http://noxuhax.ifrance.com/content/view/testo-tradotto.htm testo tradotto maroon 5] [http://broadwaylili.ifrance.com/content/view/aggiornamento-dvd.htm aggiornamento dvd philips 737] [http://kalian42.ifrance.com/text/directory/roxette-star/ roxette star] [http://akmokanzen.ifrance.com/images/small/cliamx.htm cliamx] [http://lordsander.ifrance.com/topic/fotos-ii.htm fotos ii guerra mundial] [http://girlwho-is.ifrance.com/img/styles/abbo-hotel.htm abbo hotel] [http://noxuhax.ifrance.com/content/view/hotel-villamarina.htm hotel villamarina cesenatico] [http://toofarfrommaybe.ifrance.com/view/new/robyx/ robyx] [http://igaros.ifrance.com/lib/dolci-inganni/ dolci inganni] [http://demurediablo.ifrance.com/library/html/cpa-phoenix/ cpa phoenix] [http://deviantrus.ifrance.com/topic/offerte-di/ offerte di lavoro come cameriera per sta] [http://tizolaa.ifrance.com/web/serpa-pimentel/ serpa pimentel, antonio de-] [http://jdawsona.ifrance.com/data/mario-winans/ mario winans feat enya e deddy] [http://lovereceier.ifrance.com/lib/giovanni-civitillo.htm giovanni civitillo] [http://noxuhax.ifrance.com/content/view/hp-c.htm hp 610c] [http://igaros.ifrance.com/lib/gimme-hope/ gimme hope johanna] [http://singaporepets.ifrance.com/library/html/lg-flatron.htm lg flatron 17] [http://toofarfrommaybe.ifrance.com/view/new/ati-pro/ ati 9600pro 256] [http://lovereceier.ifrance.com/lib/creutz-gustaf.htm creutz, gustaf philip] [http://yeeden.ifrance.com/img/styles/ristorante-etnici/ ristorante etnici roma] [http://girlwho-is.ifrance.com/img/styles/toshiba-satellite.htm toshiba satellite p30 - 121] [http://highbulp.ifrance.com/images/small/traduzione-eminem/ traduzione eminem] [http://yeeden.ifrance.com/img/styles/over-sky/ over sky] [http://broadwaylili.ifrance.com/content/view/donna-cerca.htm donna cerca inculata] [http://igaros.ifrance.com/lib/filtro-/ filtro 67 mm] [http://tizolaa.ifrance.com/web/with-my/ with my own two hands] [http://igaros.ifrance.com/lib/uccisione-ostaggio/ uccisione ostaggio iglese] [http://kalian42.ifrance.com/text/directory/gaman/ gaman] [http://akmokanzen.ifrance.com/images/small/caffe-macchina.htm caffe macchina] [http://yeeden.ifrance.com/img/styles/juanes-black/ juanes black eyed peas] [http://highbulp.ifrance.com/images/small/zeljko-supermen/ zeljko supermen] [http://jdawsona.ifrance.com/data/logitech-z/ logitech z-3] [http://highbulp.ifrance.com/images/small/black-label/ black label] [http://deviantrus.ifrance.com/topic/vray/ vray] [http://voltia.ifrance.com/content/view/maxtor-shared.htm maxtor shared storage drive - 300gb] [http://singaporepets.ifrance.com/library/html/klimt-opere.htm klimt opere e commento] [http://lovereceier.ifrance.com/lib/videocamera-analogica.htm videocamera analogica] [http://tat-ooin.ifrance.com/resources/articles/pentium-.htm pentium 4 2 6 ghz] [http://tat-ooin.ifrance.com/resources/articles/foto-e.htm foto e video disesso] [http://tizolaa.ifrance.com/web/dediche-d/ dediche d amicizia] [http://lordsander.ifrance.com/topic/sony-cavo.htm sony cavo i-link] [http://tat-ooin.ifrance.com/resources/articles/laskowski-janusz.htm laskowski janusz] [http://jdawsona.ifrance.com/data/navigator-/ navigator 5 wired gps] [http://highbulp.ifrance.com/images/small/londra-mi/ londra mi fa morire] [http://demurediablo.ifrance.com/library/html/marcosignori-gervasio/ marcosignori gervasio] [http://akmokanzen.ifrance.com/images/small/diretta-stadio.htm diretta stadio 7 gold] [http://kalian42.ifrance.com/text/directory/trapani-roma/ trapani roma biglietti aerei] [http://lordsander.ifrance.com/topic/salterello.htm salterello] [http://lovereceier.ifrance.com/lib/schede-madri.htm schede madri abit] [http://lovereceier.ifrance.com/lib/toner.htm toner 510] [http://jdawsona.ifrance.com/data/we-ara/ we ara] [http://highbulp.ifrance.com/images/small/italia-foto/ italia foto satellite] [http://akmokanzen.ifrance.com/images/small/d-.htm d 100 nikon] [http://speedofsoun.ifrance.com/text/directory/kiribati.htm kiribati] [http://girlwho-is.ifrance.com/img/styles/la-stanza.htm la stanza- succeed in escaping] [http://oiyaoi.ifrance.com/images/small/lusso-cuneo/ lusso cuneo] [http://deviantrus.ifrance.com/topic/madame-claude/ madame claude] [http://oiyaoi.ifrance.com/images/small/reggae-capleton/ reggae capleton] [http://igaros.ifrance.com/lib/gianna-nannini/ gianna nannini bello e impossibile] [http://lordsander.ifrance.com/topic/zante-and.htm zante and laganas] [http://broadwaylili.ifrance.com/content/view/crack-giochi.htm crack giochi] [http://deviantrus.ifrance.com/topic/vendita-climatizzatori/ vendita climatizzatori] [http://deviantrus.ifrance.com/topic/comune-di/ comune di buonalbergo] [http://yeeden.ifrance.com/img/styles/fuck-your/ fuck your right back] [http://noxuhax.ifrance.com/content/view/botta-senza.htm botta senza risposta] [http://voltia.ifrance.com/content/view/marcolino.htm marcolino] [http://tat-ooin.ifrance.com/resources/articles/colita-tanga.htm colita tanga] [http://lovereceier.ifrance.com/lib/prenotazione-albergo.htm prenotazione albergo dublino] [http://akmokanzen.ifrance.com/images/small/mercedes-nuova.htm mercedes nuova classe m] [http://voltia.ifrance.com/content/view/valeria-marini.htm valeria marini nuda] [http://lordsander.ifrance.com/topic/supermercati-sma.htm supermercati sma] [http://yeeden.ifrance.com/img/styles/www-graduatorie/ www graduatorie scuola pavia] [http://lovereceier.ifrance.com/lib/ovidiu-lipan.htm ovidiu lipan] [http://tat-ooin.ifrance.com/resources/articles/modulo-per.htm modulo per l affitto casa] [http://oiyaoi.ifrance.com/images/small/i-can/ i can t] [http://voltia.ifrance.com/content/view/lama-zoologia.htm lama (zoologia)] [http://igaros.ifrance.com/lib/behead/ behead] [http://kalian42.ifrance.com/text/directory/asciugabiancheria-classe/ asciugabiancheria classe energetica a] [http://toofarfrommaybe.ifrance.com/view/new/download-gioco/ download gioco pokemon] [http://girlwho-is.ifrance.com/img/styles/wurzen.htm wurzen] [http://kalian42.ifrance.com/text/directory/doggystyle/ doggystyle] [http://lovereceier.ifrance.com/lib/diploma.htm diploma] [http://lordsander.ifrance.com/topic/baseball-champ.htm baseball champ] [http://yeeden.ifrance.com/img/styles/nec-bluetooth/ nec bluetooth] [http://kalian42.ifrance.com/text/directory/steg/ steg 754] [http://jdawsona.ifrance.com/data/fodeba-keita/ fodeba, keita] [http://voltia.ifrance.com/content/view/dragonstea-din.htm dragonstea din tei lyrics] [http://oiyaoi.ifrance.com/images/small/lecce-monaco/ lecce monaco in pulman] [http://igaros.ifrance.com/lib/video-scandalo/ video scandalo a luce rossa] [http://oiyaoi.ifrance.com/images/small/sessoorale/ sessoorale] [http://akmokanzen.ifrance.com/images/small/ml.htm ml 400] [http://akmokanzen.ifrance.com/images/small/sesso-chattare.htm sesso chattare] [http://broadwaylili.ifrance.com/content/view/rossella-draghetti.htm rossella draghetti] [http://noxuhax.ifrance.com/content/view/jylland.htm jylland] [http://highbulp.ifrance.com/images/small/right-back/ right back frankee] [http://broadwaylili.ifrance.com/content/view/hosting-sito.htm hosting sito web] [http://deviantrus.ifrance.com/topic/recuperare-punti/ recuperare punti] [http://akmokanzen.ifrance.com/images/small/www-ona.htm www ona] [http://kalian42.ifrance.com/text/directory/ceca-prljavo/ ceca prljavo] [http://toofarfrommaybe.ifrance.com/view/new/zaino-per/ zaino per notebook 12] [http://noxuhax.ifrance.com/content/view/maniglie.htm maniglie] [http://broadwaylili.ifrance.com/content/view/ray-ban.htm ray ban 3145] [http://singaporepets.ifrance.com/library/html/jack-diamond.htm jack diamond gangster] [http://tat-ooin.ifrance.com/resources/articles/napoli-.htm napoli - mosca] [http://lordsander.ifrance.com/topic/zoom-uib.htm zoom uib02] [http://singaporepets.ifrance.com/library/html/celeron.htm celeron 775] [http://girlwho-is.ifrance.com/img/styles/wolkswagen-caravelle.htm wolkswagen caravelle] [http://girlwho-is.ifrance.com/img/styles/sito-ufficiale.htm sito ufficiale della facolta di economia] [http://oiyaoi.ifrance.com/images/small/seat-ibiza/ seat ibiza 1.9 tdi] [http://broadwaylili.ifrance.com/content/view/gigi-d.htm gigi d alessio da scaricare gratis] [http://demurediablo.ifrance.com/library/html/codes-de/ codes de viaccess] [http://highbulp.ifrance.com/images/small/ci/ c350i] [http://akmokanzen.ifrance.com/images/small/foto-gratis.htm foto gratis cameriere] [http://voltia.ifrance.com/content/view/lettore-cd.htm lettore cd mp3 sony] [http://kalian42.ifrance.com/text/directory/tequila-baby/ tequila baby 51] [http://tizolaa.ifrance.com/web/pastiglie-leone/ pastiglie leone] [http://kalian42.ifrance.com/text/directory/incontro-amore/ incontro amore] [http://demurediablo.ifrance.com/library/html/coppie-non/ coppie non certificate] [http://akmokanzen.ifrance.com/images/small/disegno-di.htm disegno di case] [http://singaporepets.ifrance.com/library/html/zyxel-switch.htm zyxel switch gs-1116] [http://yeeden.ifrance.com/img/styles/nicotina-stop/ nicotina stop torino] [http://voltia.ifrance.com/content/view/hd.htm hd 120] [http://deviantrus.ifrance.com/topic/la-strega/ la strega di classe] [http://singaporepets.ifrance.com/library/html/offerta-regali.htm offerta regali parma] [http://noxuhax.ifrance.com/content/view/carrozzine-jane.htm carrozzine jane matrix slalom] [http://deviantrus.ifrance.com/topic/run-time/ run time 0701] [http://lordsander.ifrance.com/topic/tisuby-y.htm tisuby y georgina] [http://akmokanzen.ifrance.com/images/small/oslo-ristorante.htm oslo ristorante] [http://highbulp.ifrance.com/images/small/streets/ streets] == Measured power usage ==
+
== Measured power usage ==
 
Measured with Kill-A-Watt, 119V input, tested with 720p output to LCD (not plugged in to wattmeter)<br>
 
Measured with Kill-A-Watt, 119V input, tested with 720p output to LCD (not plugged in to wattmeter)<br>
 
Note: These figures have also been confirmed with a 240V unit.
 
Note: These figures have also been confirmed with a 240V unit.

Revision as of 14:54, 20 August 2007

Measured power usage

Measured with Kill-A-Watt, 119V input, tested with 720p output to LCD (not plugged in to wattmeter)
Note: These figures have also been confirmed with a 240V unit.

  • Main menu: 14-15W
  • Playing a 640x480 XviD file: 17-18W
  • dnetc -benchmark2: 20W
  • "Sleeping" (white light off, no video output after holding down Play button): 14-15W
  • After a "shutdown -h now" command: 15W

Questions

  • Is there any way to further reduce power usage, e.g., disabling the graphics processor?
  • Perhaps swapping out the hard drive for a flash based card like is being done with iPod Minis nowadays?
  • What about a "Shutdown" frappliance that physically turned it off. (Realising that some sort of hard power switch would probably be needed to turn it back on).

Also as much as 30% of the power could be used by the AC-DC transformer, running straight from DC could lower the amps used.

pmset

  • Doing a pmset -g yields:
-bash-2.05b$ pmset -g
  System-wide power settings:
     SleepDisabled          1
  Active Profiles:
     AC Power                -1*
  Currently in use:
   disksleep      15
   hibernatemode  0
   displaysleep   1
   powerbutton    0
   sleep          30
   autorestart    1
   hibernatefile  /var/vm/sleepimage

So it looks like sleep has been "disabled" in the sense of traditional mac sleep. I am not super adept at the pmset command, and can't seem to find a way to reverse that setting. You are able to play with the settings currently in use (setting disksleep to 5, or 10 for example), but trying to set womp gives no results. A pmset -g cap gives you:

-bash-2.05b$ pmset -g cap
  Capabilities for AC Power:
    displaysleep
    disksleep
    sleep
    autorestart
    powerbutton

Additional, you can directly edit the file: /Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist. At the bottom is the setting for SleepDisabled, which is set to true by default.

Note: I just changed the file so SleepDisabled is false, saved changes and rebooted. The settings were saved, and now I will see if the system goes to "sleep" on its own. I'll also report back if the AppleTV cools down at all, or if it appears the hard drive has spun down.

I have tried SleepDisabled false, but I doesn't help. The consumption is always 14-15W when idle or "switched off".

On the other hand if you "switch off" the Apple TV by holding play/pause key for 5 seconds and then you look at pmset -g there will be

   disksleep      1
   displaysleep   1

while in normal state there are zeros. The harddrive seems to sleep (I feel a delay issuing commands in commandline), but the consumption stays the same 14-15W :(

Measurement Requests

  • Power supply efficiency
    • Efficiency is measured as effective output power divided by input power (Po/Pi x 100 %). Pi can be measure as above using a Kill-A-Watt meter (you should take the Pi measurements at the same time as you measure the DC output current). To obtain Po (recall that Po = VI), first measure the DC output voltage (V) of the supply using a multi-meter in parallel with the output supply (this value should remain relatively constant regardless of what function the AppleTV is performing). Next, measure the DC current (I) using the multi-meter remembering that the meter must be placed in series with the DC output voltage from the power supply for this measurement (the output current will vary with what function the AppleTV is performing - current is proportional to processing load). Then, the output power (Po) is computed by multiplying the measured DC voltage by the measured DC current (Po = VI).
  • The digital wattmeter I have can measure P and U*I. If I remember well P=U*I*cos phi, where phi is the phase and cos phi is the efficiency. For AppleTV I have measured in idle P=15W and U*I=31VA, the efficiency seems to be comparable with my laptop power supply, where I have P=30W and U*I=60VA.