Should the mac book be turned off if not in use?

Does leaving the macbook powered on 24/7 cause problems? 

You can leave it plugged in while sleeping...the Apple charging circuitry chareges the battery to 100% and then shutsdown and the unit uses line power until the battery trickles down to 93-95% at which point the circuit kicks in and tops up the battery, and shutsdown again.  Keeps doing that so it cannot overcharge the system.
Personally, I don't like the thermal cycling of powering down and up frequently.
If you keep it plugged in just remember to unplug and run the battery down about half way once or twice a month to exercise it.  Running the battery down to shutdown is not good for the battery.  Sudies have shown a battery discharged to 50% and recharged will have three to four times the life of a battery discharged all the way as a regular thing.

Similar Messages

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    we had the macbook pro and we put in a new hard drive and when we press the power button it turns on and has a flashing file qith a question mark on it and we did the internet recovery thing but after its done it just turns off again. please help

    The battery has an integrated microchip that acts as a "fuel gauge." Calibration resets this gauge, which allows the OS to better determine times to charge and discharge the battery. Calibration should be done approximately every two months. Failure to do so for a long period of time can result in the microchip "fuel gauge" in the battery losing the ability to accurately determine the remaining charge, and it will report that there is more charge in the battery than is actually present. As a result, the computer will not initiate Safe Sleep at the proper time, and instead undergo a hard shut down, one of the main causes of hard drive directory damage.

  • Mac Book Pro turns off

    Hello,
    My Mac Book Pro turns off without reason. It hypernates. At first I thought it was the battery but It is not that. It says it has 2:30 left, but to turn it on I need to plug in the adapter. It does that for 2 days now.
    Thank you in advance,
    Chrystalla

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  • Mac book pro, Turns off and goes under protection especially with an External monitor on.

    Mac book pro,
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    I use it when I work with final cut pro, and this problem it's becoming huge and changing my workplans....
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    In many forums I read that the CPU temp could be the problem, but I've checked it and It's always around 62°-68°....
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    Thank you so much.
    Antonio
    My mac Infos:
    Model Name:
    MacBook Pro
      Model Identifier:
    MacBookPro6,2
      Processor Name:
    Intel Core i7
      Processor Speed:
    2,66 GHz
      Number Of Processors:
    1
      Total Number Of Cores:
    2
      L2 Cache (per core):
    256 KB
      L3 Cache:
    4 MB
      Memory:
    8 GB
      Processor Interconnect Speed:
    4.8 GT/s
      Boot ROM Version:
    MBP61.0057.B09
      SMC Version (system):
    1.58f16
      Serial Number (system):
    W80223V7AGZ
      Hardware UUID:
    3993F249-8480-5ABD-9846-88608D085469
      Sudden Motion Sensor:
      State:
    Enabled
    The report is this one:
    Interval Since Last Panic Report:  687027 sec
    Panics Since Last Report:          6
    Anonymous UUID:                    EB3EFFB2-AFCE-472E-ADA1-F35EFF3C7BBA
    Sat Oct 13 16:58:00 2012
    panic(cpu 2 caller 0xa3dc9b): NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xc0000000 0xa822c000 0x0a5480a2, D0, P2/4
    Backtrace (CPU 2), Frame : Return Address (4 potential args on stack)
    0x7c6f3888 : 0x21b837 (0x5dd7fc 0x7c6f38bc 0x223ce1 0x0)
    0x7c6f38d8 : 0xa3dc9b (0xc5328c 0xcc3800 0xc61e60 0x0)
    0x7c6f3978 : 0xb58608 (0xe50bc04 0xe80b004 0x100 0x0)
    0x7c6f39c8 : 0xb4f601 (0xe80b004 0x100 0x7c6f39f8 0xa2d778)
    0x7c6f39f8 : 0x175b9a6 (0xe80b004 0x100 0x438004ee 0x2b1f6a)
    0x7c6f3b38 : 0xb772b5 (0xe80b004 0xe80c004 0x0 0x0)
    0x7c6f3b78 : 0xa46e7c (0xe80b004 0xe80c004 0x0 0x0)
    0x7c6f3c18 : 0xa4355b (0x0 0x9 0x0 0x0)
    0x7c6f3dc8 : 0xa4542a (0x0 0x600d600d 0x702a 0x7c6f3df8)
    0x7c6f3e98 : 0x9d9582 (0xc1d00011 0xaa910001 0x20802040 0x7c6f3ee0)
    0x7c6f3ef8 : 0xd9b57d (0xe08fc00 0x7c6f3f4c 0x0 0x7)
    0x7c6f3f58 : 0xd9b71a (0xe076800 0xda2e54 0x7c6f3f78 0x2a45c9)
    0x7c6f3f78 : 0x230235 (0xe076800 0x0 0x0 0x6c03)
    0x7c6f3fc8 : 0x2a179c (0x863ea0 0x0 0x10 0xe980a84)
          Kernel Extensions in backtrace (with dependencies):
             com.apple.driver.AGPM(100.12.31)@0xd98000->0xda2fff
                dependency: com.apple.iokit.IOGraphicsFamily(2.2.1)@0x9a8000
                dependency: com.apple.iokit.IONDRVSupport(2.2.1)@0x9ca000
                dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x991000
             com.apple.nvidia.nv50hal(6.4.0)@0x1625000->0x1a39fff
                dependency: com.apple.NVDAResman(6.4.0)@0x9d7000
             com.apple.NVDAResman(6.4.0)@0x9d7000->0xcc4fff
                dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x991000
                dependency: com.apple.iokit.IONDRVSupport(2.2.1)@0x9ca000
                dependency: com.apple.iokit.IOGraphicsFamily(2.2.1)@0x9a8000
    BSD process name corresponding to current thread: kernel_task
    Mac OS version:
    10K549
    Kernel version:
    Darwin Kernel Version 10.8.0: Tue Jun  7 16:33:36 PDT 2011; root:xnu-1504.15.3~1/RELEASE_I386
    System model name: MacBookPro6,2 (Mac-F22586C8)
    System uptime in nanoseconds: 563676343615
    unloaded kexts:
    com.apple.driver.AppleUSBUHCI    4.2.0 (addr 0x1495000, size 0x65536) - last unloaded 209721117821
    loaded kexts:
    foo.tun    1.0
    foo.tap    1.0
    com.parallels.kext.prl_vnic    6.0 11828.615184
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    com.parallels.kext.prl_hid_hook    6.0 11828.615184
    com.logmein.hamachi    1.0
    com.parallels.kext.prl_hypervisor    6.0 11828.615184
    com.paceap.kext.pacesupport.snowleopard    5.7.2
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    com.digidesign.iokit.DigiDal    9.0f4
    com.AmbrosiaSW.AudioSupport    3.2
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    com.apple.filesystems.autofs    2.1.0
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    com.apple.Dont_Steal_Mac_OS_X    7.0.0
    com.apple.iokit.CHUDUtils    364
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    com.apple.driver.AppleSmartBatteryManager    160.0.0
    com.apple.driver.AppleAHCIPort    2.1.7
    com.apple.driver.AppleUSBEHCI    4.2.4
    com.apple.driver.AppleACPIButtons    1.3.6
    com.apple.driver.AppleRTC    1.3.1
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    com.apple.driver.AppleSMBIOS    1.7
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    com.apple.driver.AppleIntelCPUPowerManagementClient    142.6.0
    com.apple.security.sandbox    1
    com.apple.security.quarantine    0
    com.apple.nke.applicationfirewall    2.1.14
    com.apple.driver.AppleIntelCPUPowerManagement    142.6.0
    com.apple.driver.AppleProfileReadCounterAction    17
    com.apple.driver.DspFuncLib    2.0.5f14
    com.apple.driver.AppleProfileTimestampAction    10
    com.apple.driver.AppleProfileThreadInfoAction    14
    com.apple.driver.AppleProfileRegisterStateAction    10
    com.apple.driver.AppleProfileKEventAction    10
    com.apple.driver.AppleProfileCallstackAction    20
    com.apple.driver.AppleSMBusController    1.0.10d0
    com.apple.driver.AppleFWAudio    2.6.2fc2
    com.apple.iokit.IOFireWireIP    2.0.3
    com.apple.iokit.IOSurface    74.2
    com.apple.iokit.IOBluetoothSerialManager    2.4.5f3
    com.apple.iokit.IOSerialFamily    10.0.3
    com.apple.iokit.CHUDKernLib    365
    com.apple.driver.AppleHDAController    2.0.5f14
    com.apple.iokit.IOHDAFamily    2.0.5f14
    com.apple.iokit.IOAudioFamily    1.8.3fc2
    com.apple.kext.OSvKernDSPLib    1.3
    com.apple.iokit.AppleProfileFamily    41.4
    com.apple.driver.IOPlatformPluginFamily    4.7.0a1
    com.apple.driver.AppleSMBusPCI    1.0.10d0
    com.apple.driver.AppleBacklightExpert    1.0.1
    com.apple.driver.AppleSMC    3.1.0d5
    com.apple.iokit.IOFireWireAVC    4.0.6
    com.apple.nvidia.nv50hal    6.4.0
    com.apple.NVDAResman    6.4.0
    com.apple.iokit.IONDRVSupport    2.2.1
    com.apple.iokit.IOGraphicsFamily    2.2.1
    com.apple.driver.BroadcomUSBBluetoothHCIController    2.4.5f3
    com.apple.driver.AppleUSBBluetoothHCIController    2.4.5f3
    com.apple.iokit.IOBluetoothFamily    2.4.5f3
    com.apple.iokit.IOUSBMassStorageClass    2.6.7
    com.apple.driver.AppleUSBMultitouch    207.7
    com.apple.iokit.IOUSBHIDDriver    4.2.0
    com.apple.driver.AppleUSBMergeNub    4.2.4
    com.apple.driver.AppleUSBComposite    3.9.0
    com.apple.iokit.IOSCSIMultimediaCommandsDevice    2.6.8
    com.apple.iokit.IOBDStorageFamily    1.6
    com.apple.iokit.IODVDStorageFamily    1.6
    com.apple.iokit.IOCDStorageFamily    1.6.1
    com.apple.iokit.IOSCSIBlockCommandsDevice    2.6.8
    com.apple.driver.XsanFilter    402.1
    com.apple.iokit.IOAHCISerialATAPI    1.2.6
    com.apple.iokit.IOSCSIArchitectureModelFamily    2.6.8
    com.apple.iokit.IOFireWireFamily    4.2.6
    com.apple.iokit.IOUSBUserClient    4.2.4
    com.apple.iokit.IO80211Family    320.1
    com.apple.iokit.IONetworkingFamily    1.10
    com.apple.iokit.IOAHCIFamily    2.0.6
    com.apple.iokit.IOUSBFamily    4.2.4
    com.apple.driver.AppleEFIRuntime    1.4.0
    com.apple.iokit.IOHIDFamily    1.6.6
    com.apple.iokit.IOSMBusFamily    1.1
    com.apple.kext.AppleMatch    1.0.0d1
    com.apple.security.TMSafetyNet    6
    com.apple.driver.DiskImages    289.1
    com.apple.iokit.IOStorageFamily    1.6.3
    com.apple.driver.AppleACPIPlatform    1.3.6
    com.apple.iokit.IOPCIFamily    2.6.5
    com.apple.iokit.IOACPIFamily    1.3.0
    Model: MacBookPro6,2, BootROM MBP61.0057.B09, 2 processors, Intel Core i7, 2.66 GHz, 8 GB, SMC 1.58f16
    Graphics: NVIDIA GeForce GT 330M, NVIDIA GeForce GT 330M, PCIe, 512 MB
    Graphics: Intel HD Graphics, Intel HD Graphics, Built-In, 288 MB
    Memory Module: global_name
    AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x93), Broadcom BCM43xx 1.0 (5.10.131.42.4)
    Bluetooth: Version 2.4.5f3, 2 service, 19 devices, 1 incoming serial ports
    Network Service: Ethernet, Ethernet, en0
    Network Service: AirPort, AirPort, en1
    Serial ATA Device: Hitachi HTS545050B9SA02, 465,76 GB
    Serial ATA Device: MATSHITADVD-R   UJ-898
    USB Device: Hub, 0x0424  (SMSC), 0x2514, 0xfa100000 / 2
    USB Device: iPhone, 0x05ac  (Apple Inc.), 0x12a0, 0xfa140000 / 6
    USB Device: Apple Internal Keyboard / Trackpad, 0x05ac  (Apple Inc.), 0x0237, 0xfa120000 / 5
    USB Device: Internal Memory Card Reader, 0x05ac  (Apple Inc.), 0x8403, 0xfa130000 / 4
    USB Device: BRCM2070 Hub, 0x0a5c  (Broadcom Corp.), 0x4500, 0xfa110000 / 3
    USB Device: Bluetooth USB Host Controller, 0x05ac  (Apple Inc.), 0x8218, 0xfa113000 / 9
    USB Device: Hub, 0x0424  (SMSC), 0x2514, 0xfd100000 / 2
    USB Device: IR Receiver, 0x05ac  (Apple Inc.), 0x8242, 0xfd120000 / 4
    USB Device: Built-in iSight, 0x05ac  (Apple Inc.), 0x8507, 0xfd110000 / 3
    FireWire Device: Duet, Apogee Electronics, Up to 400 Mb/sec

    Never mind, I found it.

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