What does the VCRAM do and what will it do to my Mac Book Pro if I reset it? (Easy-to-understand information please!)

(Easy-to-understand information please!)

See -> http://support.apple.com/kb/ht1379.
NVRAM is "non-volatile RAM" in which some system preferences are set. Resetting NVRAM will take you back to Apple's default settings for things like start-up drive, etc. Resetting NVRAM can sometimes solve some mysterious problems with your battery, screen resolution and a host of other settings. You needn't worry about 'losing' anything if you reset your NVRAM - and it could solve some problems.
Good luck,
Clinton

Similar Messages

  • HT203254 my desktop is not working when i open it all it does is show the color weal and it never gos away on my mac book pro how do i fix it?

    my desktop is not working when i open it all it does is show the color weal and it never gos away on my mac book pro how do i fix it?

    It means, tentatively, that system files are missing or damaged and you will have to reinstall Snow Leopard. See the following:
    Reinstall OS X without erasing the drive
    Do the following:
    1. Repair the Hard Drive and Permissions
    Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list.  In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive.  If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
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    If the drive is OK then quit DU and return to the installer.  Proceed with reinstalling OS X.  Note that the Snow Leopard installer will not erase your drive or disturb your files.  After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
    Download and install the Combo Updater for the version you prefer from support.apple.com/downloads/.

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    I bought it from Other World Computer last week for $95. 3rd party, I suppose.

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    A radio station broadcasts on on the internet, but I can't receive it on my Mac Book Pro. The header on the blank page that appears says: "triton digital live player…." Does anyone know what I must download to make this work?

    A radio station broadcasts on on the internet, but I can't receive it on my Mac Book Pro. The header on the blank page that appears says: "triton digital live player…." Does anyone know what I must download to make this work?

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  • Does anyone know what to do when a apple mac book pro screen won't wake up from sleep?

    Does anyone know what to do when a apple mac book pro screen won't wake up from sleep? I have tried to restart it and it still won't come on.

    Try this, which is located in your macbook pros user manual.

  • I have purchased the last Creative Suite available on disk. It will load on my old Mac Book Pro.  I just bought a new Mac Book Pro and just realized there is no place to put a disk.  Is there any way to load the programs to my new computer?

    I have purchased the last Creative Suite available on disk. It will load on my old Mac Book Pro.  I just bought a new Mac Book Pro and just realized there is no place to put a disk.  Is there any way to load the programs to my new computer?

    Buy an external optical drive such as the Apple USB SuperDrive that is made specifically for that model.
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  • What software is pre loaded on mac book pro?

    what software is pre loaded on mac book pro?

    These are all of the following preinstalled apps on the new MacBook Pro models.
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    iMovie
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  • I have a Mac book pro with regular drive, I want to replace the drive with SSD, so can I do t for Mac book pro purchased in 2012 and which SSD is recommended. I am looking for 500 to 700GB SSD.

    I have a Mac book pro(13 inch non-retina, i7) with regular drive, I want to replace the drive with SSD, so can I do it for Mac book pro purchased in 2012 and which SSD is recommended.
    I am looking for 500 to 700GB SSD.
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    Upgrading your MacBook Pro with a Solid State Drive...
    ...call back with any questions.
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  • HT1277 Mail has gone crazy. Header's and messages are mixed up. New Mac Book Pro. Migrated files from Time machine running snow leopard. Reinstall or new computer needed?

    Mail has gone crazy. Header's and messages are mixed up. New Mac Book Pro. Migrated files from Time machine running snow leopard. Reinstall or new computer needed?

    Ok; I'm not sure what you're doing.    36 hours is rather long.  Seems like a new migration.  Not what I intended.
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  • Prompted to sing in iCloud and iMessages every time i turn on Mac Book Pro

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    You showed a kernel panic file from OS X, apprantly Log Me In is installed into OS X or running when you log in.
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  • I already have a apple ID for my iphone5. And recently I have purchased a new mac book pro.

    I already have a apple ID for my iphone5. And recently I have purchased a new mac book pro.
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    2: If using my existing apple ID, then will there be any issue at later stages?
    3: How will I be able to share the data between my existing iphone5 & new mac book?
    4: Or will it be better to create a new apple ID for my newly purchase mac book pro?
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    Use the existing Apple ID, so you can sync your data between your phone and your Mac.
    No.
    iCloud does the job for you. Both your iPhone and your Mac should have asked you to enable it during their first setup. See -> http://www.apple.com/icloud/setup/
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  • I get this error message when I try to back up my laptop:  Time machine could not complete the backup.  The backup disc image "/Volumes/Data/Lou Ann Buesing's Mac Book Pro. sparse bundle is already in use.  Anyone know how to fix it?

    I get this error message when I try to back up my laptop:
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    Reboot the TC.. Sometimes you need to reboot the whole network.
    This is what comes of Lion and then made worse in Mountain Lion of Apple not spending enough time to fix the bugs.
    Read C12 in pondini.
    http://pondini.org/TM/Troubleshooting.html
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  • Photoshop 5.1 does not open up after upgrading to Yosemite on a 2009 mac book pro

    Adobe Photoshop 5.1 does not work after installing upgrade Yosemite.  I have a mac book Pro - 2009

    Have seen CS3 (I have) mentioned as working with Maverick/Yosemite
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    CS6 apparently is still available if you want to pay the lump sum for an upgrade.

  • HT1338 is the garageband, iPhoto,iMovie update free, as I have purchase mac book pro last december, I am unable to update it says "To update this application, sign in to the account you used to purchase it

    is the garageband, iPhoto,iMovie update free, as I have purchase mac book pro last december, I am unable to update it from app store. When I try to do so it says "To update this application, sign in to the account you used to purchase it"
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    Should be the account you registered your mac with, and/or the account you used during the setup assistant.

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