When i turn on my macbook pro it has a black screen and just beeps quickly 3 times with a pause and then repeats.

when i turn my macbook pro it has a black screen and it beeps 3 times in succession with a pause and then repeats the beeping and so on.

If you replaced the Ram in your machine at any time, you may not have been aware of the fact that Apple computers have always been a little picky when it comes to 3rd party Ram.  Apple computers have always run very well on 2 different brands.
Memory for iMac 2GB, 4GB, 8GB, 16GB, & now 32GB - OWC Certified RAM for Apple iMac with Lifetime Warranty
This first link is from other world computing and none of us on these forums to my knowledge have heard of any bad ram from either Other World Computing
or Crucial Ram.
Crucial Ram
The only difference I am aware of is that Crucial offers a download and will tell you exactly what Ram your computer is capable of using and the prices that are available.
Resolving Kernel Panics
HOPE THIS HELPS IN SOME WAY
DON

Similar Messages

  • When i turn on my macbook pro it goes to white screen with picture of folder with ? on it help please

         can't log on to macbookpro goes to flashing file with ? in middle help please

    A flashing question mark or globe appears when you start your Mac
    Question (?) Mark, Blinking Folder, or Gray Screen at Startup
    These are related but not identical issues. Their causes are outlined in Intel-based Mac- Startup sequence and error codes, symbols. Solutions may be found in:
    A flashing question mark appears when you start your Mac
    Mac OS X- Gray screen appears during startup
    In most cases the problems may be caused by one or more of these:
    a. Problem with the computer's PRAM - See Resetting your Mac's PRAM and NVRAM.
    b. Boot drive's directory has been corrupted - Repair with Disk Utility.
    c. Critical system files are damaged or deleted - Reinstall OS X.
    d. The disk drive is physically non-functional - Replace the hard drive.
    Note that the information I have provided is what Apple recommends, If other users suggest different solutions than found here, then be sure what they recommend does not impact on your warranty, if any, or ability to get continuing Apple service.
    Please don't start removing drives or changing cables unless you know what you are doing and have exhausted other non-invasive alternatives outlined here. If you perform any work yourself that is unapproved by Apple, then you will void any warranty you may have and lose all further Apple Support.
    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.
    If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
    The main difference if you are using Lion or Mountain Lion is that you must first boot from the Recovery HD. Simply boot from the Recovery HD to perform the above.
    Reinstall Snow Leopard Without Erasing The drive
    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.
    If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
    2. Reinstall Snow Leopard
    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 Mac OS X 10.6.8 Update Combo v1.1.
    Reinstalling Lion/Mountain Lion Without Erasing The Drive
    Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
    Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
    When the recovery menu appears select Disk Utility. 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 main menu.
    Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Continue button.
    Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.

  • When I turn on my MacBook Pro I get a grey screen with a folder icon and a question mark. I can't the computer to boot up.

    What do I do when I power up the computer and get a grey screen with a folder icon and a question mark?

    vickyfromosseo wrote:
    What do I do when I power up the computer and get a grey screen with a folder icon and a question mark?
    Read this: A flashing question mark or globe appears when you start your Mac

  • When I turn on my Macbook pro retina display i get a black screen and i noticed that the machine gets very hot, any clue how to make it work?

    When I turn on my Macbook pro retina display, a black screen show up while I hear the normal start up sound.  I noticed that the machine gets very hot, any clue how to make it work?

    If the Mac is too hot to touch, take it in for service.
    Apple - Find Locations

  • Hi I do not want iTunes to open up automatically when I turn on my macbook pro.  I tried going to System Preferences Users and Groups Login Items and then I took iTunes off the list but it still opens up automatically when I turn on my laptop.

    Hi I do not want iTunes to open up automatically when I turn on my macbook pro.  I tried going to System Preferences>Users and Groups>Login Items and then I took iTunes off the list but it still opens up automatically when I turn on my laptop. What should I do?

    Hi r,
    Make sure you close iTunes before shutdown.  And you're quite welcome.

  • When I turn on my macbook pro is no apple logo, just a black screen

    when I turn on my macbook pro is no apple logo, just a blackscreen!
    what need i to do! sometimes it wont start up
    I used switchsresx for my macbookpro but i removed it becouse it was not working but now when i startup my macbook Pro it shows a black screen!

    Here's a link you might find helpful:
    http://support.apple.com/kb/ht1564
    Safe Boot disables several things, and you can look at the list and see if you can find the culprit. As Linc says, if you still have a problem, post a new topic so that it will get the attention it deserves.

  • When I turn on my Macbook Pro and sign in, the screen is blank, none of the icons appear, I can't click, open or do anything! Help!

    When I turn on my Macbook Pro and sign in, the screen is blank, none of the icons appear, I can't click, open or do anything! Help!

    You could try this; Mac OS X: Starting up in Safe Mode.It takes awhile to come up so patience is a virtue here.
    And here is What is Safe Mode.
    DALE

  • When i turn on my macbook pro why does a bunch of things pop up

    when i turn on my macbook pro why does a bunch of things pop up

    It's the Resume feature of Lion:
    Managing Mac OS X Lion's application resume feature.
    If you shutdown your computer you should get a dialog asking if you want applications to resume on the next startup. Simply uncheck the box to prevent that from occurring. Open General preferences and uncheck the option to Restore windows when quitting and re-opening apps. You can also install a third-party utility to control resume features on individual applications: RestoreMeNot or Application State Cleaner.

  • When i turn on my MacBook Pro, it makes the chime sound, and I hear it running but the screen is black. Just downloaded new OS.....need help.

    when I turn on my MacBook Pro, I hear the startup chime, and the fan running. The screen is black and there are no lights on the keyboard.     I tried resetting PRAM, but still will not start. Running OS X Mavericks 10.9.1 and recently download new OS. Serial number is C0****W47.  How do I bring my screen back?
    <Peronal Information Edited by Host>

    After a while I heared something about pressing the return key for english. But when I pressed the ruturn key, nothing happened.

  • When I turn on my MacBook Pro and when I am at the login screen, the background is white rather than steel gray. What is wrong and how can I fix it?

    When I turn on my MacBook Pro and when I am at the login screen, the background is white rather than steel gray. What is wrong and how can I fix it?

    It turns out that iCloud caused this issue. When I turned iCloud off my login screen was completely normal.

  • My early 2008 Macbook Pro is suffering from black screen after Yosemite update

    My early 2008 Macbook Pro is suffering from black screen after Yosemite update. It ran beta 5 great but failed on restart after beta 6 install. There is no cursor but I can hear the HDD spooling up. I have tried booting in safe mode, PRAM reset and SMC reset but nothing works. After the first 5 days of every now and then trying to start it, it started fine. I used the machine all day with no problems, it had rolled back the install and was back on beta 5. I decided to try the update again, the same thing happened and it has stayed black for over a week now. It wont work with a monitor either. Help!

    Hello Adam,
    I would try instead of installing the beta software, to install the official build of OS X Yosemite from the Mac App Store to see if that gets you passed the no video issue when updating the beta software. 
    How to install OS X Yosemite on your Mac
    http://support.apple.com/en-us/HT6412
    Regards,
    -Norm G.  

  • How can I shut off the automatic login when I turn on my MacBook Pro?

    Ever since I updated to Yosemite I have been forced to enter my password whenever I turn on my MacBook Pro. I went to System Preferences/Users & Groups and see that the automatic login option is set to off, but it is shaded and I can't use the dropdown menu, even though I've unlocked it.
    Is this a common issue? Am I just going to have to get used to signing in every time? I'm the only one who uses it, and it's a little annoying.
    I've tried searching for help in the discussions and also on google, but I'm not finding any answers.
    Help, please!

    Did you turn on FileVault when you upgraded to Yosemite? If it is on then a login password is required (sort of obviously). You can tell whether it is on by going to Apple Menu > System Preferences > Security & Privacy and click FileVault at the top and see if the words "Turn off FileVault" are in the button. I'm the only one who uses my Mac also, but the remote possibility of it being stolen makes it worth it to me to have FileVault turned on and a password required. OS X: About FileVault 2 - Apple Support

  • When I turn on my MacBook Pro a box prompts up and it disappears right away. How can I stop this from happening?

    I'm new in the Mac World. In November I bought a MacBook Pro. I love my MacBook, however, a couple of days ago when I turn on my MacBook and log in, a window or box prompts up for about one second and then dissapears. I'm afraid that may be a virus or trojan that may be running behind the screen. How do I fix this? Are there any applications that I can run to detect what is happening to my computer.
    Thank you for your help!!!

    It was very hard to see what the box says because the message displays for less than one second. However, I was able to record it with my iphone and pause it until I got a shot of the message. The box says the following:
    "Do you want the application “java” to accept incoming network connections?
    Clicking deny may limit the application’s behavior. This setting can be changed in the Firewall pane of Security preferences."
    I did make some changes. I will see if it works.
    Thank you!!!

  • How do I stop Photoshop from launching when I turn on my MacBook Pro?

    I subscribe to Adobe CC. Every time I turn on my MacBook Pro, Photoshop CC launches. I want this to stop. When I right click on the Photoshop app > Options > Open at Login is NOT checked. And in System Preferences > Users & Groups > Login Items >  Photoshop is not there. What can I do? I am sure it is a simple fix. Thanks!

    As I mentioned when I right click on the Photoshop app in the dock > Options > Open at Login is NOT checked. And in System Preferences > Users & Groups > Login Items >  Photoshop is not there in the list. I do not have any utilities installed that automatically launch applications and I do not mess with scripts or even know how to.
    I tried calling Adobe's poor outsourced customer service and was told there was a 2-5 minute wait, but after waiting 22 minutes, I had to hang up.

  • When I turn on or restart my Macbook Pro Retina 15", my entire screen flashes completely bright yellow for a few seconds and then it goes to the normal Welcome screen.  How do I fix this??

    Hi Everyone,
    This problem just started today.  When I turn on or restart my Macbook Pro Retina 15" (Mid 2012 version), my screen is light gray like normal, and then after a few seconds my entire screen flashes completely bright yellow for a few seconds, and then it goes to the normal Welcome screen (where I choose to login as myself or a guest user).  This suddenly started today and has not stopped since.  This keeps happening every single time I turn on or restart my computer.
    Yesterday I installed all the Mavericks and other updates that were available in the App Store, so I'm wondering if this is related to that since this never happened prior to my doing those updates yesterday.  When I first installed the new OS X Mavericks (10.9.3) update, it went through the whole installation process (took about 10 minutes), and then during the installation I got an error message saying that it couldn't verify my iTunes application that was on my laptop, and then my laptop finished installing the updates.  Then once my laptop restarted, the App Store "Updates" section said that I had to do the whole OS X Mavericks (10.9.3) and iTunes (Version 11.2) updates all over again.  So my laptop did the whole installation again (took about 10 minutes, but this time I didn't get that "iTunes error message" during the installation process). 
    Now, when I go to the App Store "Updates" section, it says the following under "Updates Installed in the Last 30 days":
    -Digital Camera RAW Compatibility Update (Version 5.05) installed May 15, 2014
    -OS X Update (Version 10.9.3) installed May 15, 2014
    -iTunes (Version 11.2) installed May 15, 2014
    -OS X Update (Version 10.9.3) installed May 15, 2014
    -iTunes (Version 11.2) installed May 15, 2014
    -Security Update 2014-002 (Version 1.0) installed April 22, 2014
    I'm wondering if this flashing bright yellow screen upon bootup is related to the fact that my laptop installed the OS X Update and the iTunes Update two times each?  Or is this new problem totally unrelated?  It's just that this problem started a day after these 2 updates were installed twice.
    My Macbook Pro Retina 15" (Mid 2012 version) is otherwise working fine at least as of now.  The only issue so far is this flashing bright yellow screen every time I turn on or restart my computer.
    If anyone could please help me fix this so that my bootup screen doesn't flash completely bright yellow anymore, I would be forever grateful! 
    Thank you so much for reading this and for any help you can provide. 
    hope everyone is well,
    Elaine

    Hey everyone in Apple world!
    I figured out how to fix the flashing yellow screen problem that I've been having on my MBP!  Yessssss!!!
    I found this super handy website with the golden answer: http://support.apple.com/kb/HT1379
    I followed the instructions on this page and here's what I did:
    Resetting NVRAM / PRAM
    Shut down your Mac.
    Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
    Turn on the computer.
    Press and hold the Command-Option-P-R keys before the gray screen appears.
    Hold the keys down until the computer restarts and you hear the startup sound for the second time.
    Release the keys.
    I went through the 6 steps above twice, just to make sure I got rid of whatever stuff was holding up my bootup process.  Since I did that, my MBP boots up just like normal.  No flashing yellow screen anymore!!   
    (Note that I arrived at this solution when I first saw this page: http://support.apple.com/kb/TS2570?viewlocale=en_US)
    Let me know if this works for you!
    Elaine

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