16 GB Ram Sleep Drain

Discussion in 'MacBook Pro' started by Davy.Shalom, Oct 5, 2013.

  1. Davy.Shalom macrumors 6502


    Dec 23, 2008
    I have 16 GB of RAM in my MacBook Pro 13 (2012, i7 2.9 GHz.) It loses about 30% power over the course of a 10 hour sleep.

    Does anyone know if the Mac keeps the RAM in a low-power state while it's in sleep? I can't think of any other reason why it would lose so much power, unless it's a battery problem. My battery is in good health, though.

    Any ideas?
  2. glenthompson macrumors 68000


    Apr 27, 2011
    It has to keep the RAM powered otherwise it would lose its contents. My MBP loses about 25% per day when in sleep. Check your power settings and see if anything is set that might cause a power drain while in sleep.
  3. chriscl macrumors 6502


    Jan 4, 2008
    Stuttgart, Germany
    I have the same model year but the i5 model.

    Are you leaving any USB devices plugged in that are preventing it going into "deep" sleep?

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