Path: utzoo!mnetor!tmsoft!torsqnt!news-server.csri.toronto.edu!bonnie.concordia.ca!clyde.concordia.ca!nstn.ns.ca!news.cs.indiana.edu!samsung!zaphod.mps.ohio-state.edu!magnus.ircc.ohio-state.edu!tut.cis.ohio-state.edu!oak.cis.ohio-state.edu!rubin From: rubin@oak.cis.ohio-state.edu (daniel j rubin) Newsgroups: comp.sys.mac.hardware Subject: Re: Leaving Mac On Message-ID: <88434@tut.cis.ohio-state.edu> Date: 14 Feb 91 23:45:26 GMT References: <0bhUNXS00WB9MAOkdI@andrew.cmu.edu> <1991Feb11.052721.12610@bronze.ucs.indiana.edu> <1991Feb13.034308.21139@m.cs.uiuc.edu> Sender: news@tut.cis.ohio-state.edu Reply-To: daniel j rubin Organization: Ohio State University Computer and Information Science Lines: 22 >A Mac SE/030 takes about 60 watts of power (average, turned on). >A color Mac II takes about 120 watts of power (average, turned on). > >These quantities were derived by measuring average DC current through >a full-wave bridge on an ohmmeter, then naively multiplying by 120v. > >Do you leave light bulbs on 24 hours a day like this? That's 1.5 - 3 >-- I can't believe that a computer itself is going to consume 120 watts of electricity. Now I can understand how the MONITOR would soak up the watts, but the CPU of a plus and a II would be pretty close to each other I would think. The most common source of electronical failure is due to cracks in the traces on the PC boards due to thermal expansion which results in replacing the entire board. If you are concerned about money and the environment, I would turn your monitor off and always leave your CPU on. Just a suggestion. I just want to throw in the comment that if you want to save the environment think about alternative power sources like nuclear ( the same people who complain about the green house affect seem to shoot down the only viable option at this time - frustrating ). - Dan Rubin