My mac book pro is not "starting" it makes beeping noise when i turn it on, prior to this for half  day it was turning off after an houror so.

my mac book pro is not "starting" it makes beeping noise when i turn it on, prior to this for half a day it was turning off after an hourr so.

It may very well be a RAM issue but possibly something else.  Look over this extensive troubleshooting document for a possible solution:
https://discussions.apple.com/docs/DOC-3353
Ciao.

Similar Messages

  • My mac book pro dos not start up and beeping

    Hi everyone
    I just opened my 1 year macbook pro and it did not start up as usual, although its beeping while the little white light at the bottom is flashing.
    Please tell me how can I fix it.
    Many thanks,
    Sean

    Intel-based Mac Power On Self Test RAM error beeps
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  • TS2570 My Mac Book Pro will not start up.  I ran the AHT and received the following error:

    My Mac Book Pro will not start up.  I ran the AHT and received the following error:  4SNS/1/40000000:Th0H-90.750.  Anyone know what this means?

    I have no idea how much it will cost to repair. I don't even know what the exact problem will prove to be. It may be quick if it isn't a motherboard problem. I just don't know. Take it in for a service diagnostic, then they can tell you what is involved.

  • My mac book pro will not start, i hear the fan sometimes but nothing else

    my mac book pro will not start, i hear the fan sometimes but nothing else

    What is the exact model of your Macbook Pro?

  • Mac Book Pro will not start on Battery Power

    Mac Book Pro will not start on Battery Power although battery at 98% need to connect charger. When started date and time incorrect, comes up as 1st Jan 2012.

    What is the exact model of your MBP?  The date change often is an indication of power loss to the MBP, such as disconnecting the battery.
    If the SMC reset does not solve the situation, post this from your MBP:
    Make certain that the power adapter is connected.
    Ciao.

  • Hi, well i just got my mac book pro, and it worked perfectly yesterday but then when i opened it today to go on FaceTime, my picture/video was dark and red ! how do i get it back to normal?

    hi, well i just got my mac book pro, and it worked perfectly yesterday but then when i opened it today to go on FaceTime, my picture/video was dark and red ! how do i get it back to normal? there is a green light next to the camera when im on photobooth/facetime,...

    Just do a restart.  It seems to clear it up.

  • My mac book pro does not start but has error message with a question mark on screen. took it in and was told probably the hard drive as could not reconize it so bought new one but still not connecting.what do i do

    My mac book pro does not connect but shows an error message with a question mark on the screen.I took it to a retailer that said it was not reconizing the hard drive.He said i needed a new hard drive but it may be something else as well but he was sure a new hard drive would fix it.So putting faith in someone who deals with them i purchased a new hard drive to find it was still not working although he said the computer did know reconize the hard drive and i may have to send it away to get it checked .After already paying 120 pounds for a new hard drive and they wanting another 80.00 pounds to diagnose it i am a little sceptical.
    That's why i am interested on anyone's help.

    Welcome to the Apple Support Communities
    I think that your Mac detects your hard disk, but the problem is that your new hard disk doesn't contain any operating system, so your Mac doesn't find any bootable partition and you see a question mark.
    If your Mac came with DVDs, insert the Mac OS X Install DVD and hold the C key while your Mac is starting. Then, just install Mac OS X. If the hard disk isn't prepared to install Mac OS X, you will have to erase it using "Mac OS Extended (Journaled)". See > http://pondini.org/OSX/DU1.html

  • MAC BOOK PRO WILL NOT START- COMPLETELY DEAD!

    I forgot to power down my mac book pro last night. I closed the lid & forgot to go back & turn it off completely. This morning it will not power up. The machine is completely dead.
    The power supply wasn't connected overnight so I assume the battery has completely drained. It's been charging for the last 2 hours (which would normally have fully charged it) but the light on the power cord is still showing green so I assume it's still charging, however there should be plenty of juice in the battery to start the computer but it still won't start.
    Any ideas how to get it started?

    A dead battery will take longer to start charging, but leave it on and eventually it will start to charge again.
    Once you get it charged, perform a SMC and PRAM reset
    https://discussions.apple.com/docs/DOC-3046

  • Help My mac book pro does not start

    i have a huge problem becauce i cannot start my mac book pro, i turn on and apear the gray screen with apple logo and round progresive bar, but just not have any change it cud be hours or days its the same, i already try to restore it by the comands (command+R)  or (shift+caps lock) when i turn on my computher but alwais same logo screen, please i need help maby im doing someting wrong

    Take each of these steps that you haven't already tried. Stop when the problem is resolved.
    Step 1
    The first step in dealing with a boot failure is to secure your data. If you want to preserve the contents of the startup drive, and you don't already have at least one current backup, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data that has changed since your last backup, you can skip this step.   
    There are several ways to back up a Mac that is unable to boot. You need an external hard drive to hold the backup data.
         a. Boot into the Recovery partition, or from a local Time Machine backup volume (option key at startup.) When the OS X Utilities screen appears, launch Disk Utility and follow the instructions in this support article, under “Instructions for backing up to an external hard disk via Disk Utility.”
    b. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, boot the non-working Mac in target disk mode. Use the working Mac to copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
    c. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.
    Step 2
    Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to boot, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can boot now, one of the devices you disconnected, or a combination of them, is causing the problem. Finding out which one is a process of elimination.
    If you've booted from an external storage device, make sure that your internal boot volume is selected in the Startup Disk pane of System Preferences.
    Step 3
    Boot in safe mode. Note: If FileVault is enabled on some models, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Post for further instructions.
    Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
    The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
    When you boot in safe mode, it's normal to see a dark gray progress bar on a light gray background. If the progress bar gets stuck for more than a few minutes, or if the system shuts down automatically while the progress bar is displayed, your boot volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 5.
    If you can boot and log in now, empty the Trash, and then open the Finder Info window on your boot volume ("Macintosh HD," unless you gave it a different name.) Check that you have at least 9 GB of available space, as shown in the window. If you don't, copy as many files as necessary to another volume (not another folder on the same volume) and delete the originals. Deletion isn't complete until you empty the Trash again. Do this until the available space is more than 9 GB. Then reboot as usual (i.e., not in safe mode.)
    If the boot process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
    Step 4
    Sometimes a boot failure can be resolved by resetting the NVRAM.
    Step 5
    Launch Disk Utility in Recovery mode (see Step 1.) Select your startup volume, then run Repair Disk. If any problems are found, repeat until clear. If Disk Utility reports that the volume can't be repaired, the drive has malfunctioned and should be replaced. You might choose to tolerate one such malfunction in the life of the drive. In that case, erase the volume and restore from a backup. If the same thing ever happens again, replace the drive immediately.
    This is one of the rare situations in which you should also run Repair Permissions, ignoring the false warnings it may produce. Look for the line "Permissions repair complete" at the end of the output. Then reboot as usual.
    Step 6
    Reinstall the OS. If your Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
    Step 7
    Repeat Step 6, but this time erase the boot volume in Disk Utility before installing. The system should automatically reboot into the Setup Assistant. Follow the prompts to transfer your data from a Time Machine or other backup.
    Step 8
    This step applies only to older Macs (not current models) that have a logic-board ("PRAM") battery. Both desktop and portable Macs used to have such a battery. The logic-board battery is separate from the main battery of a portable. A dead logic-board battery can cause a gray screen at boot. Typically the boot failure will be preceded by loss of the startup disk and system clock settings. See the user manual for replacement instructions. You may have to take the machine to a service provider to have the battery replaced.
    Step 9
    If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store to have the machine tested. If you can't get to an Apple Store, go to another authorized service provider.

  • My mac book pro is not starting what can i do?

    My mac book pro is staring but has a gray icon and does not boot up, what can i do?

    That's a esy fix, usually it's caused by a outdated or incompatible at boot kernel extension file installed by a third party program.
    You can hold the shift key down on a wired or built in keyboard while booting for "Safe Mode" to disable these bootup kernel extension files, then go around and update all your third party software then reboot.
    Another method is to hold option key down while booting (if on 10.6 with the disk in) and boot off the 10.6 disk, or into 10.7-10.8 Recovery HD partition and reinstall OS X over itself, reboot then Software Update until clear.
    That will clear out all and give a fresh OS X copy in the process, but doesn't touch your programs or files.
    Read more in detail here
    ..Step by Step to fix your Mac

  • Mac book pro will not start

    mac book pro 13 wont atart up all i get is a folder icon with a question mark in it any help ?

    Saying that it can't find the last boot volume and that you need to
    use control panel to set startup disk
    or repair/restore and that your boot drive volume has a bad directory
    try booting from OS X DVD (use c on startup or option key) and go to Utility menu and then Disk Utility.

  • Mac book pro wil not start

    My macbook pro will not start !

    ALS cik op De Knop duw Dan GAAT Het lichtje vooraan in Het Midden Aan but Het Scherm blijft zwart en HIJ maakt Configuratie op Lawaai.

  • Mac book pro will not start up.  Charging light is on, but no response from computer.  What happened?

    The Mac Book Pro was fine, and then just stopped working.  I connect the power source, and the light is on as if it is charging.  However, when I try to turn the laptop on, nothing happens.  There is no response whatsoever.  Any ideas what happened and what I need to do?

    Examine this support article for possible solutions:
    http://support.apple.com/kb/TS1367?viewlocale=en_US
    If no success, a trip to an Apple store genius bar is the best recourse.
    Ciao.

  • My mac book pro does not start properly. It goes past logo then grey screen I cannot access my

    MMy MacBook pro will not start up. It goes past the apple logo then only a grey screen, sometimes a blue one with vertical stripes. I have tried starting from a disc also by using different keys, but with the same result. At one point i heard three beeps then a pause repeated. Please help.

    See if you can run an Apple Hardware Test:
    http://support.apple.com/en-us/HT201257
    Note an error free AHT is not definitive.
    If addition to the possibility of a RAM problem, the vertical stripes on the blue screen is not a good sign.
    Ciao.

  • Mac Book Pro will not start up

    My 2008 MBP will not start up.  When i turn it on, it goes to a gray screen with the Apple Symbol and the wheel below it keeps spinning.  ANy suggestions?

    It may be just a graphic card or a display problem, but as the MacBook Pro has got the graphic card soldered onto the logic board, you will need a new logic board.
    The logic board is the most expensive part of the computer, and more on a MacBook Pro that has got near everything soldered to the logic board. Take the Mac to an Apple Store to get your Mac repaired.
    If it's the display, it will be expensive too, but less than a new logic board

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