How to get past blue screen at start up on MacPro?

I have a blue screen at start up and the MacPro won't boot up.
Before I attempt to hold down keys at start, pls let me know which one to hold down.

See if there is assistance here:
https://discussions.apple.com/docs/DOC-5282
Ciao.

Similar Messages

  • How to get past white screen after start up

    .

    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.

  • I can't get past white screen when starting up, any ideas?

    I Can't get past white screen when starting up, any ideas

    http://support.apple.com/kb/TS2570 Mac OS X: Gray screen appears during startup
    ===============
    When posting in Apple Communties/Forums/Message Boards.......It would help us to know which Mac model you have, which OS & version you're using, how much RAM, etc. You can have this info displayed on the bottom of every post by completing your system profile and filling in the information asked for.
    CLICKY CLICK---> https://discussions.apple.com/docs/DOC-3602
    CLICKY CLICK-----> Help us to help you on these forums

  • How to get past gray screen on MacBook?

    How to get past gray screen on MacBook?

    Here are some initial things to try.
    http://support.apple.com/kb/ts2570
    http://lifehacker.com/how-to-troubleshoot-the-four-most-common-oh-sh-t-mac-48708 0511

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    Hey, thanks for taking the time to reply.
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    Sun May  4 14:01:58 2014
    panic(cpu 1 caller 0xffffff80002dbe7e): Kernel trap at 0xffffff7f811e20a1, type 14=page fault, registers:
    CR0: 0x0000000080010033, CR2: 0x0000000000000000, CR3: 0x000000000e7fb000, CR4: 0x0000000000000660
    RAX: 0x0000000000000000, RBX: 0xffffff80654f3000, RCX: 0x00000000015d0000, RDX: 0xffffff800b21b7f0
    RSP: 0xffffff807a23b780, RBP: 0xffffff807a23b790, RSI: 0x0000000000007059, RDI: 0xffffff80654f3000
    R8:  0xffffff807a23b4a8, R9:  0x0000000000000000, R10: 0xffffff807a23b4a0, R11: 0x0000000000ffffff
    R12: 0xffffff80654f3000, R13: 0xffffff8000903760, R14: 0xffffff80654f3000, R15: 0xffffff80654f3000
    RFL: 0x0000000000010297, RIP: 0xffffff7f811e20a1, CS:  0x0000000000000008, SS:  0x0000000000000010
    Fault CR2: 0x0000000000000000, Error code: 0x0000000000000000, Fault CPU: 0x1
    Backtrace (CPU 1), Frame : Return Address
    0xffffff807a23b410 : 0xffffff8000222fa9
    0xffffff807a23b490 : 0xffffff80002dbe7e
    0xffffff807a23b660 : 0xffffff80002f3376
    0xffffff807a23b680 : 0xffffff7f811e20a1
    0xffffff807a23b790 : 0xffffff7f811d6b89
    0xffffff807a23b7c0 : 0xffffff7f811d6a05
    0xffffff807a23b820 : 0xffffff7f811d8b44
    0xffffff807a23b9b0 : 0xffffff7f80ff1b34
    0xffffff807a23ba30 : 0xffffff7f80fa5b35
    0xffffff807a23bb60 : 0xffffff7f80fa4b3f
    0xffffff807a23bbd0 : 0xffffff7f80ff2ba2
    0xffffff807a23bc10 : 0xffffff7f80f20522
    0xffffff807a23bca0 : 0xffffff7f80f187a3
    0xffffff807a23bce0 : 0xffffff7f80ff32f8
    0xffffff807a23bd30 : 0xffffff8000695733
    0xffffff807a23bd90 : 0xffffff80006caca5
    0xffffff807a23be00 : 0xffffff80002b60ab
    0xffffff807a23be50 : 0xffffff8000226bf1
    0xffffff807a23be80 : 0xffffff80002139f5
    0xffffff807a23bef0 : 0xffffff800021e043
    0xffffff807a23bf70 : 0xffffff80002c97bd
    0xffffff807a23bfb0 : 0xffffff80002f3b96
          Kernel Extensions in backtrace:
             com.apple.iokit.IOGraphicsFamily(2.4.1)[4421462D-2B1F-3540-8EEA-9DFCB0565E39]@0 xffffff7f80f0f000->0xffffff7f80f45fff
                dependency: com.apple.iokit.IOPCIFamily(2.9)[EDA75271-4E9D-34E7-A2C5-14F0C8817D37]@0xffffff 7f807fe000
             com.apple.iokit.IONDRVSupport(2.4.1)[999E29DA-D513-3544-89D1-9885B728A098]@0xff ffff7f80fa3000->0xffffff7f80fb0fff
                dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[4421462D-2B1F-3540-8EEA-9DFCB0565E39]@0 xffffff7f80f0f000
                dependency: com.apple.iokit.IOPCIFamily(2.9)[EDA75271-4E9D-34E7-A2C5-14F0C8817D37]@0xffffff 7f807fe000
             com.apple.nvidia.classic.NVDAResmanTesla(8.2.4)[80472F2E-D31D-32C4-88BA-2EB3D63 C159F]@0xffffff7f80ff0000->0xffffff7f81257fff
                dependency: com.apple.iokit.IOPCIFamily(2.9)[EDA75271-4E9D-34E7-A2C5-14F0C8817D37]@0xffffff 7f807fe000
                dependency: com.apple.iokit.IONDRVSupport(2.4.1)[999E29DA-D513-3544-89D1-9885B728A098]@0xff ffff7f80fa3000
                dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[4421462D-2B1F-3540-8EEA-9DFCB0565E39]@0 xffffff7f80f0f000
    BSD process name corresponding to current thread: WindowServer
    Boot args: -x
    Mac OS version:
    13C1021
    Kernel version:
    Darwin Kernel Version 13.1.0: Wed Apr  2 23:52:02 PDT 2014; root:xnu-2422.92.1~2/RELEASE_X86_64
    Kernel UUID: E9CF78E2-1E9F-3B6F-81A4-FEE6C6D0E4D5
    System model name: MacBookPro5,1 (Mac-F42D86C8)
    System uptime in nanoseconds: 86865650539
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    com.apple.driver.AppleHWSensor          1.9.5d0
    com.apple.driver.AGPM          100.14.15
    com.apple.Dont_Steal_Mac_OS_X          7.0.0
    com.apple.driver.AppleBacklight          170.3.5
    com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport          4.2.3f10
    com.apple.driver.AppleMuxControl          3.4.35
    com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0
    com.apple.driver.AppleLPC          1.7.0
    com.apple.driver.AppleMCCSControl          1.1.12
    com.apple.nvidia.NVDAStartup          8.2.4
    com.apple.filesystems.autofs          3.0
    com.apple.driver.AppleUSBTCButtons          240.2
    com.apple.driver.AppleUSBTCKeyEventDriver          240.2
    com.apple.driver.AppleUSBTCKeyboard          240.2
    com.apple.driver.AppleIRController          325.7
    com.apple.iokit.SCSITaskUserClient          3.6.6
    com.apple.driver.AppleFileSystemDriver          3.0.1
    com.apple.driver.XsanFilter          404
    com.apple.BootCache          35
    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
    com.apple.iokit.IOAHCIBlockStorage          2.5.1
    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
    com.apple.driver.AppleFWOHCI          4.9.9
    com.apple.driver.AppleUSBHub          666.4.0
    com.apple.driver.AirPort.Brcm4331          700.20.22
    com.apple.driver.AppleAHCIPort          3.0.0
    com.apple.driver.AppleSmartBatteryManager          161.0.0
    com.apple.driver.AppleRTC          2.0
    com.apple.driver.AppleUSBEHCI          660.4.0
    com.apple.driver.AppleUSBOHCI          656.4.1
    com.apple.nvenet          2.0.21
    com.apple.driver.AppleHPET          1.8
    com.apple.driver.AppleACPIButtons          2.0
    com.apple.driver.AppleSMBIOS          2.1
    com.apple.driver.AppleACPIEC          2.0
    com.apple.driver.AppleAPIC          1.7
    com.apple.driver.AppleIntelCPUPowerManagementClient          216.0.0
    com.apple.security.quarantine          3
    com.apple.nke.applicationfirewall          153
    com.apple.driver.AppleIntelCPUPowerManagement          216.0.0
    com.apple.iokit.IOSurface          91
    com.apple.iokit.IOBluetoothFamily          4.2.3f10
    com.apple.AppleGraphicsDeviceControl          3.4.35
    com.apple.nvidia.classic.NVDANV50HalTesla          8.2.4
    com.apple.nvidia.classic.NVDAResmanTesla          8.2.4
    com.apple.iokit.IOBluetoothHostControllerUSBTransport          4.2.3f10
    com.apple.driver.AppleBacklightExpert          1.0.4
    com.apple.iokit.IONDRVSupport          2.4.1
    com.apple.driver.AppleGraphicsControl          3.4.35
    com.apple.driver.AppleSMBusPCI          1.0.12d1
    com.apple.driver.AppleSMC          3.1.8
    com.apple.driver.IOPlatformPluginLegacy          1.0.0
    com.apple.driver.IOPlatformPluginFamily          5.7.0d10
    com.apple.driver.AppleSMBusController          1.0.11d1
    com.apple.iokit.IOGraphicsFamily          2.4.1
    com.apple.kext.triggers          1.0
    com.apple.driver.AppleUSBMultitouch          240.9
    com.apple.iokit.IOUSBHIDDriver          660.4.0
    com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.6.6
    com.apple.iokit.IOBDStorageFamily          1.7
    com.apple.iokit.IODVDStorageFamily          1.7.1
    com.apple.iokit.IOCDStorageFamily          1.7.1
    com.apple.driver.AppleUSBMergeNub          650.4.0
    com.apple.driver.AppleUSBComposite          656.4.1
    com.apple.iokit.IOAHCISerialATAPI          2.6.1
    com.apple.iokit.IOSCSIArchitectureModelFamily          3.6.6
    com.apple.iokit.IOFireWireFamily          4.5.5
    com.apple.driver.AppleEFINVRAM          2.0
    com.apple.iokit.IOUSBUserClient          660.4.2
    com.apple.driver.AppleEFIRuntime          2.0
    com.apple.iokit.IO80211Family          630.35
    com.apple.iokit.IOAHCIFamily          2.6.5
    com.apple.iokit.IOUSBFamily          675.4.0
    com.apple.iokit.IONetworkingFamily          3.2
    com.apple.driver.NVSMU          2.2.9
    com.apple.iokit.IOHIDFamily          2.0.0
    com.apple.iokit.IOSMBusFamily          1.1
    com.apple.security.TMSafetyNet          7
    com.apple.security.sandbox          278.11
    com.apple.kext.AppleMatch          1.0.0d1
    com.apple.iokit.IOReportFamily          23
    com.apple.driver.DiskImages          371.1
    com.apple.iokit.IOStorageFamily          1.9
    com.apple.driver.AppleKeyStore          2
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