Is it bad if my iMac stay on all day long???

Discussion in 'iMac' started by ByteTheBooty, Mar 30, 2015.

  1. ByteTheBooty macrumors regular

    Mar 8, 2015
    Today a post-it fell behind my iMac and I noticed that I iMac was really hot. In fact, I realized that I never give my iMAc a break, I study for really long period of times, sometimes 8-9 hours straight where my iMac is in front of me with its screen always turned on. Is that bad for the computer? A lot of the times, Im not touching the computer, but I just like keeping the screen turned on...

    Also, I rarely shut down the iMac, how many times do I need to shut down the iMac? Once a day? Once a week? (currently, i shut it down less than once a month...)

    (ALSO: I dont own anything to clean my iMac, I usually use eye-glasses cleaning liquid to clean the glass, is that bad? Should I use windex instead lol?)

    Thanks in Advance
  2. GGJstudios macrumors Westmere


    May 16, 2008
    No, it's not bad for it. Many run Macs for several months at a time without ever shutting down.
  3. casperes1996 macrumors 68040


    Jan 26, 2014
    Horsens, Denmark
    Well, the screen does get slightly worse the more it's on. All screens do. The other components, unless you leave endless loops running, won't really take any damage from it. If it doesn't go to sleep, the fan endlessly spinning at 1200rpm could in the long run lead to fan problems, but we're talking many years. Overall, it's not a problem, and I do the same. Hurts the electricity bill more than the iMac.
  4. matreya macrumors 65816


    Nov 14, 2009
    I don't sleep my Retina iMac, but I do sleep the display...
  5. casperes1996 macrumors 68040


    Jan 26, 2014
    Horsens, Denmark
    The display is also what takes the most harm from staying awake (although still not much), and on idle,, is also what draws the most power. The only other component that could really benefit from full sleep is the main fan.
  6. zhaoxin macrumors regular

    Jan 28, 2015
    I can not say it is bad. But it is better if you use the energy-saver. It will automatically close the screen after some time, then sleep the computer if you do not touch the computer after some long time.
  7. firedept macrumors 603


    Jul 8, 2011
    Never an issue. I have 2 iMacs which only ever get turned off if I have to reboot to install software updates. Have never had an issue with either iMac.
  8. tron786 macrumors newbie

    Aug 3, 2014
    It will be more energy efficient to use an LED lamp to study than using the iMac screen as a light source.
  9. Fatboy71 macrumors 65816


    Dec 21, 2010
    Don't use cleaning solutions or other cleaning liquids for other products as these can damage the coating on the screen.

    What I use on my iMac's screen is:

    I get two micro fibre cloths. I moisten one with tap water, wring out as much water as possible.

    I use this to wipe and clean the screen.

    I then use the other micro fibre cloth to dry the screen. After doing this, the screen is gleaming.

    In my opinion, screen cleaning liquids are a waste of money and do no better job than the method I've described above.
  10. roadbloc macrumors G3


    Aug 24, 2009
    My iMac G4 has probably been shut down only about two or three times in its entire life. Still going strong.
  11. cynics macrumors G4

    Jan 8, 2012
    By the time it will harm anything it will be obsolete so I wouldn't worry about it.

    If I'm not using my iMac I generally have handbrake running so the CPU is at 100% load. Or I'll be using it like right now with handbrake running in the background. Unless I run out of media to encode which is rare I stop handbrake to play a game so the GPU will be running at 100% load.

    Basically my iMac is always maxed for the most part. Been doing this for years across a couple iMacs and its yet to be a problem. I generally replace my iMac every 3 years and they've always been working 100% perfectly when I sell them.

    Point is if I can run an iMac like this with no problems you or anyone just leaving it on won't be an issue.

    I can't speak for current 5k iMacs since they seem to run a bit warmer then my late 2013 iMac.
  12. e93to macrumors 6502a


    Jan 23, 2015
    Just let the display sleep after several minutes of inactivity. From what I'm told, if you leave the display on for a long period of time without changing what's displayed on the screen, it can harm the display.

    That being said, don't worry about leaving your iMac on too much. I use my iMac for 12+ hours per day occasionally, and there is no sign of wear or damage. After I'm done using it, I put the computer to sleep. I just shut down my iMac if I won't be using it for at least 2 days.
  13. Genkakuzai macrumors regular

    Jun 13, 2013
    I pretty much only reboot my iMac (and my MacBook Pro for that matter) when I'm installing OS X updates. Other than that I just turn the screen off. There's really no need to turn your computer off.
  14. kagharaht, Apr 9, 2015
    Last edited: Apr 9, 2015

    kagharaht macrumors 6502a

    Oct 7, 2007
    I believe the new iMacs draw 0.9 watts when on standby or when the screen goes off and it goes into low power mode? Maybe someone can clarify if it has to be on sleep mode or knows what the power draw is on low power mode?

    "iMac is designed to be more energy efficient than ever, using just 0.9 watt of electricity in sleep mode. That’s 97 percent less than the first iMac."

    Edit: Found it.

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