Mac freezes, shows grey screen then starts back up

For the past two weeks I have had the issue of my iMac suddenly freezing for a few seconds and then it turns to a grey screen for a few more seconds before it starts back up on my user area.
All programs get shut down (which is annoying as I do graphic design so I'm usually on PS or AI and lose work I've done since last save). Programs which are set to start up automatically upon login do not start up. Thankfully firefox will start back up when I click it and continue from all the tabs I had open.
I cannot seem to find a source for this to be happening... The programs which are always running when this has happened previously are: Mac Mail, finder, Messages, Spotify, Wacom Desktop Center. This morning it happened when none of my adobe programs were running.
Has anyone had the same issue or knows what's up?
I tried to go to apple support but it said I need to pay £35 for someone to answer my question.
27" iMac
Late 2012
16GB
1TB storage with 431gb free
running OSX10.8.5

Hi,
Try ; Intel-based Macs: Resetting the System Management Controller (SMC)
and : About NVRAM and PRAM
to ensure the proper operation of the SMC.
and if still issues persist, try: OS X: What is Safe Boot, Safe Mode?
Cheers

Similar Messages

My old MBP (2005) often crashes, freezes or shows grey screen at start up. Also track pad often does not work. I have re fomatted the HD and reinstalled system but to no avail. Genius bar says possible faulty HD, but suspect logic board, any ides any body

My old 17" MBP (2005) often crashes, freezes or shows grey screen at start up. Also track pad often does not work. I have re fomatted the HD and reinstalled system but to no avail. Genius bar says possible faulty HD, but I suspect logic board. All checks out OK on the Apple Diagnostic bench. Can a Logic board go intermittant?? Any Ideas any body??

Ive repaired 1000s of laptops over the years (translate: diagnose and replace parts).
Its not that old, Ive owned 100s of laptops (most were free) ....some I still have are nearly 13 years old and still perfect, ....some extremely expensive ones died in under a year.
other than becoming obsolete at some point, there isnt really any "will spoil on" data like Milk for solid state computer parts, ....alas.
You can have a $5000 laptop die in 4 months, and a junker one keep kicking after 10 years.... Ive seen that firsthand countless times.
Common logic dictates that "very expensive = long life" in computers,..... but all the repair people will tell you just the opposite.
I know you have a gripe, I get that all too well honestly .

I-MAC has the grey screen on start up, then shuts down after trying to load (bar shows 30%).

Shutdown my I-mac and next morning the grey screen appears with a loading bar which gets to 30% and then i-MAC shutsdown. Went into Utilities and it shows my files etc. but the verify and the repair disk have not corrected the issue(s).
What else can I do before I take it to the apple support. I live in Brunei and past history suggests that the Apple Support will just erase everything on the drive and I will lose the lot. I just want the photos and my own CD loaded music.
Any suggestions would be welcome.

Look at this: http://support.apple.com/kb/ts2570

Mac frozen at grey screen at start up. OS will not load. Any Tips?

I Have attempted to recover. I have also checked disk integrity and safe mode start. Nothing will keep it from hanging during the boot up process. A grey screen displays after the status line gets halfway at boot

SilveyBerry,
1. Hold down the Power Button and both volume buttons at the same time for 15 seconds and then wait 1 minute. Then hold down the power button only until the red light flashes then release it and wait for the PB to reboot which will be about 4 minutes. Make sure you got all the buttons at the same time, it can be difficult to do.
2. When it reboots, tap the gear icon in the top right corner and scroll down to Security. Perform a Security Wipe of the PB. You will lose all files you have added to the PB. Since this is a new unit, you likely do not have any files on it.
3 When you get the Security Wipe done, tap the Battery icon, tap restart. Let me know when you are at this point because there is another procedure to carry out. I will have to find it and I will post it here.

Mac Freezes at Grey Screen.

So yesterday my iMac froze while using iTunes. I had to manually power it off. I turned it on again and it booted fine. I tried iTunes again and shortly after that it froze again. I manually shut it down again. I tried to turn it on once again and it won't load the desktop. It just stays at the grey screen with the apple and spinning thing. I am pretty sure I have to erase and install again, but I am not really sure on how to do it correctly especially since I can't even get to the desktop.

You most likely can do this:
How to Perform an Archive and Install
An Archive and Install will NOT erase your hard drive, but you must have sufficient free space for a second OS X installation which could be from 3-9 GBs depending upon the version of OS X and selected installation options. The free space requirement is over and above normal free space requirements which should be at least 6-10 GBs. Read all the linked references carefully before proceeding.
1. Be sure to use Disk Utility first to repair the disk before performing the Archive and Install.
Repairing the Hard Drive and Permissions
Boot from your OS X 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 Installer menu (Utilities menu for Tiger, Leopard or Snow Leopard.) 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. Now restart normally.
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. Do not proceed with an Archive and Install if DU reports errors it cannot fix. In that case use Disk Warrior and/or TechTool Pro to repair the hard drive. If neither can repair the drive, then you will have to erase the drive and reinstall from scratch.
3. Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When you reach the screen to select a destination drive click once on the destination drive then click on the Option button. Select the Archive and Install option. You have an option to preserve users and network preferences. Only select this option if you are sure you have no corrupted files in your user accounts. Otherwise leave this option unchecked. Click on the OK button and continue with the OS X Installation.
4. Upon completion of the Archive and Install you will have a Previous System Folder in the root directory. You should retain the PSF until you are sure you do not need to manually transfer any items from the PSF to your newly installed system.
5. After moving any items you want to keep from the PSF you should delete it. You can back it up if you prefer, but you must delete it from the hard drive.
6. You can now download a Combo Updater directly from Apple's download site to update your new system to the desired version as well as install any security or other updates. You can also do this using Software Update.

I have a Mac Air, I opened a web page and it died within a nano second, then I got the beachball for about 40 mins so I turned it off. Now I cant start it up again, I get the chime, the apple a grey screen then I get the pinwheel, it's still going, help

I have a Mac Air, and I opened a web page in Safari and it died before the page could load, then I got the spinning beach ball for about 40 minutes so I turned it off. Now When I turn it on I get the chime, a grey screen, then the apple, then the pin wheel -its been going now for an hour.
Any help greatly appreciated

There are several ways to back up a Mac that is unable to fully boot. You need an external hard drive to hold the backup data.
1. Boot into Recovery (command-R at startup; 10.7 or later), from a local Time Machine backup volume (option key at startup; 10.7.2 or later), or from your installation disc (C key at startup; 10.6.8 or earlier.) Launch Disk Utility and follow the instructions in the support article linked below, under “Instructions for backing up to an external hard disk via Disk Utility.”
How to back up and restore your files
2. 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 by holding down the key combination command-T at the startup chime. Connect the two Macs with a FireWire or Thunderbolt cable. The internal drive of the machine running in target mode will mount as an external drive on the other machine. Copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
How to use and troubleshoot FireWire target disk mode
3. 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.

I was watching something on my iPad then it suddenly turned off I put it in charge and it turned back on then showed the home screen then turns back off quickly so I can't restore it

I was watching something on my iPad then it suddenly turned off I put it in charge and it turned back on then showed the home screen then turns back off quickly so I can't restore it

Hi there iPad 3rd Generation,
You may find the troubleshooting steps in the article below helpful.
iOS: Not responding or does not turn on
http://support.apple.com/kb/ts3281
-Griff W.

Blank Grey Screen on start up cannot access MAC OSX frozen up

Blank grey screen on start up Cannot get into the Mac osx side, even if I do not hold down the option key it goes to the Windows side but key boad / mouse does not work. I want to get into the mac side so I can delete the windows partition. HELP PLEASE!!!!!!!!!!!!!!!

See Here > http://support.apple.com/kb/ts2570

Grey screen on start up

hey guys
i've got a big problem with my mac.. my mum dropped my laptop from the chair while it is opened and turned on.
It hung, so i did a cold reboot by pressing the power on button.. When it started up.. it just showed a grey screen then a folder with a question mark in it.
I have 3 partitions inside it. I took the harddisk out and put it in an external drive and plugged it into another mac. Surprisingly and thankfully 2 of my partitions are working. The partition (main) that contains the mac os x leopard software doesn't appear on my friend's macbookpro.
So i reinserted the harddisk and inserted the leopard dvd to enter disk utility.
My partition was initially named "Mac OS X" is now named disk0s2 and when i tried to verify or repair disk.. it said:
First Aid Failed
Disk Utility stopped repairing "disk0s2" because the following error was encountered:
Filesystem Verify or repair failed.
Under the information:::> Mount Point: Not Mounted
Any idea what i can do to retrieve the files?
External HDD. failed.
Repair Failed.
Should i download mac recovery programs? any recommendations?
Message was edited by: winzee

I pretty much agree with the other posters. There's a slight chance that file recovery software could recover some of your data, but you'd be betting money on that possibility with no assurance of success.
Here are some possibilities:
- Disk Warrior (http://www.alsoft.com/)
- Stellar Phoenix Macintosh Data Recovery (http://www.macintosh-data-recovery.com/)
- Boomerang Data Recovery Software (http://www.boomdrs.com/)
- Data Rescue II (http://www.prosofteng.com/products/data_rescue.php)

Grey Screen at start-up - Troubleshoot harddrive and/or logic board?

Hi everyone. Sorry for the lengthy post, but hopefully you can help me - I've spent a lot of time on the boards already, but hoped you could clarify some things.
The problem is my Powerbook will not get past the grey screen at start-up. It will not boot off the 10.5 install disk and I can't eject the install disk to run the hardware test disk. Removing 3rd party ram, resetting PRAM, NVRAM, attempting to boot in 'safe' mode haven't helped. The harddrive is softly clicking/searching.
So some questions:
1) Is it possible that an interrupted time machine backup will bork the drive to the point where it wont boot? (See back-story below). I wouldn't have thought so, but prove me wrong.
2) Should I be able to boot from the install disk if the harddrive is stuffed?
3) If it is hardware, it's either the logic board or the drive. Is there any way to determine what it is (eg: is it possible to do a remote hardware test?)
Edit: Just tried mounting the drive in target disk mode using an iBook, but it wouldn't mount. Powerbook displays a black screen.
Oh, and I should point out that this is well out of warranty and any fixes would have to be cheap : ). Basically I need to determine if it's the drive or the logic board, preferably without having to buy and install a new drive when it may not be the problem.
Any help or advice would be appreciated.
Cheers
- Ben
Here's the back story if it's any help; recently upgraded to 10.5, created a base install disk image of all installed and registered apps (in the event that my drive failed). Copied data etc from the previous system over. It ran fine for a few days. This morning I ran time machine for the first time, left the computer for a while, came back and the screen was black (as if it was just displaying black, as opposed to off). Thinking it was just a display issue (which I've seen before), I put the system to sleep (power button, then 's'), woke it up again; still black. So I forced a shut down (wouldn't allow me to do a normal shut down, because dialogue boxes must have been preventing it) and on boot I got the grey screen.
-------

Hi Ben W. I don't have a good answer for you, but based on your information and what you've done, I think I would try starting the machine after disconnecting the harddrive. That requires taking the top off first, for which instructions are on ifixit.com.
I can conjecture that a blown HD is preventing normal operation, perhaps sucking the power down, disrupting the optical drive, etc. This is purely conjecture, but costs you nothing but your time. If this turns out to be the case, I figure the optical drive should start responding again (hold C key during reboot, etc).

Macbook pro-Freezes with black screen at start up.

Macbook pro-Freezes with black screen at start up. I've tried inserting the Mac OS X install disc to run the hardware test(Restart and hold down D), But it still does nothing. Just the black screen. Now I can't get the disc out. I've tried holding down the track pad key upon start up but that doesn't work neither.
What do I do??? Please help.

Remove the battery to find your serial number in the battery bay. Then you can look your MBP up on EveryMac.com:
http://www.everymac.com/ultimate-mac-lookup/
That will give you all the information on your Mac.
This is assuming that you have the MBP with the removable battery and not the unibody. The unibody has different graphic chips.
Good luck!
Message was edited by: S.U.

My ipad 2 suddenly show red screen during start up and on ordinary screen show red colure fill the screen , I think it is hardware problem mostly screen. This problem didn't happen after fall or only accident ,what shall I do .

My ipad 2 suddenly show red screen during start up and on ordinary screen show red colure fill the screen , I think it is hardware problem mostly screen. This problem didn't happen after fall or only accident ,what shall I do ?

You could try a reset and see if that fixes it : press and hold both the sleep and home buttons for about 10 to 15 seconds (ignore the red slider), after which the Apple logo should appear - you won't lose any content, it's the iPad equivalent of a reboot.
If it doesn't then you could try restoring to your last backup and/or resetting back to factory defaults. But if it's a hardware issue then you will need to contact Apple.

Macbook Pro mid 2009 13 inch suddenly freezes and grey screen appears stating press key to restart

Macbook Pro mid 2009 13 inch suddenly freezes and grey screen appears stating press key to restart. Here is my recent crash report. Please help me.
Anonymous UUID:
714EBD8C-083D-E200-A9BD-6F925A8F8F14
Thu May 29 22:30:04 2014
panic(cpu 0 caller 0xffffff80026dbf5e): Kernel trap at 0xffffff80026d1197, type 14=page fault, registers:
CR0: 0x0000000080010033, CR2: 0xffffef8022f973c8, CR3: 0x0000000089778000, CR4: 0x0000000000000660
RAX: 0x000000000000001c, RBX: 0x00000000e00002c2, RCX: 0xffffff8002abb7d4, RDX: 0xffffef8022f973c0
RSP: 0xffffff800d2cb6a0, RBP: 0xffffff800d2cb6a0, RSI: 0x0000000000000001, RDI: 0xffffef8022f973c0
R8: 0x0000000000000001, R9: 0x0000000000000001, R10: 0xffffff8014ea65e8, R11: 0xffffff809b3160f0
R12: 0xffffef8022f973c0, R13: 0x0000000000000001, R14: 0xffffff800d2cb6ec, R15: 0x0000000000000001
RFL: 0x0000000000010202, RIP: 0xffffff80026d1197, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0xffffef8022f973c8, Error code: 0x0000000000000000, Fault CPU: 0x0
Backtrace (CPU 0), Frame : Return Address
0xffffff800d2cb330 : 0xffffff8002622fa9
0xffffff800d2cb3b0 : 0xffffff80026dbf5e
0xffffff800d2cb580 : 0xffffff80026f3456
0xffffff800d2cb5a0 : 0xffffff80026d1197
0xffffff800d2cb6a0 : 0xffffff80026afd0e
0xffffff800d2cb6d0 : 0xffffff8002abb751
0xffffff800d2cb710 : 0xffffff8002abb54f
0xffffff800d2cb760 : 0xffffff7f8413fd2f
0xffffff800d2cb7a0 : 0xffffff7f84188b21
0xffffff800d2cb7e0 : 0xffffff7f841708d2
0xffffff800d2cb850 : 0xffffff7f84170fc8
0xffffff800d2cb890 : 0xffffff7f8413dfea
0xffffff800d2cba10 : 0xffffff7f8416d940
0xffffff800d2cbad0 : 0xffffff7f8413cad9
0xffffff800d2cbb20 : 0xffffff8002acea56
0xffffff800d2cbb40 : 0xffffff8002ad0051
0xffffff800d2cbba0 : 0xffffff8002acdabf
0xffffff800d2cbcf0 : 0xffffff80026b66a8
0xffffff800d2cbe00 : 0xffffff8002626bf1
0xffffff800d2cbe30 : 0xffffff80026139f5
0xffffff800d2cbea0 : 0xffffff800261e043
0xffffff800d2cbf20 : 0xffffff80026c975d
0xffffff800d2cbfb0 : 0xffffff80026f3a28
Kernel Extensions in backtrace:
com.apple.GeForceTesla(8.2.4)[24ED915E-02F3-3A31-8502-6AA41FFCA420]@0xffffff7f84 12b000->0xffffff7f841f5fff
dependency: com.apple.iokit.IOPCIFamily(2.9)[244D4E48-78E6-3369-8D76-285C66EF9BF4]@0xffffff 7f82cbe000
dependency: com.apple.iokit.IONDRVSupport(2.4.1)[B93BBFC9-9ED5-3DDD-8CED-5EDA081BB997]@0xff ffff7f8324b000
dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[B889D3AB-CCC0-3FCD-A83E-D2E3E4CB537B]@0 xffffff7f83208000
dependency: com.apple.nvidia.classic.NVDAResmanTesla(8.2.4)[6EB3FF52-A4F6-3496-AE9C-D89B00F DE504]@0xffffff7f8325b000
BSD process name corresponding to current thread: Skype
Mac OS version:
13D65
Kernel version:
Darwin Kernel Version 13.2.0: Thu Apr 17 23:03:13 PDT 2014; root:xnu-2422.100.13~1/RELEASE_X86_64
Kernel UUID: ADD73AE6-88B0-32FB-A8BB-4F7C8BE4092E
Kernel slide:
0x0000000002400000
Kernel text base: 0xffffff8002600000
System model name: MacBookPro5,5 (Mac-F2268AC8)
System uptime in nanoseconds: 60200033152435
last loaded kext at 44797399467641: com.apple.filesystems.smbfs
2.0.2 (addr 0xffffff7f84b15000, size 335872)
last unloaded kext at 15796237223278: com.apple.macos.driver.AppleUSBEthernetHost
7.0 (addr 0xffffff7f84b15000, size 20480)
loaded kexts:
net.telestream.driver.TelestreamAudio
1.1.0
com.rim.driver.BlackBerryUSBDriverInt
0.0.97
com.apple.filesystems.smbfs
2.0.2
com.apple.filesystems.ntfs
3.11
com.apple.driver.AppleHWSensor
1.9.5d0
com.apple.driver.AGPM
100.14.15
com.apple.filesystems.autofs
3.0
com.apple.driver.AppleMikeyHIDDriver
124
com.apple.driver.AppleHDA
2.6.1f2
com.apple.driver.AppleMikeyDriver
2.6.1f2
com.apple.GeForceTesla
8.2.4
com.apple.driver.AppleUpstreamUserClient
3.5.13
com.apple.driver.AudioAUUC
1.60
com.apple.iokit.IOUserEthernet
1.0.0d1
com.apple.iokit.IOBluetoothSerialManager
4.2.4f1
com.apple.Dont_Steal_Mac_OS_X
7.0.0
com.apple.driver.AppleHWAccess
1
com.apple.driver.AppleBacklight
170.3.5
com.apple.driver.AppleMCCSControl
1.1.12
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport
4.2.4f1
com.apple.driver.AppleSMCLMU
2.0.4d1
com.apple.driver.ACPI_SMC_PlatformPlugin
1.0.0
com.apple.driver.AppleLPC
1.7.0
com.apple.driver.SMCMotionSensor
3.0.4d1
com.apple.driver.AppleUSBTCButtons
240.2
com.apple.driver.AppleUSBTCKeyboard
240.2
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless
1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib
1.0.0d1
com.apple.BootCache
35
com.apple.driver.AppleIRController
325.7
com.apple.driver.AppleUSBCardReader
3.4.1
com.apple.iokit.SCSITaskUserClient
3.6.6
com.apple.driver.XsanFilter
404
com.apple.iokit.IOAHCIBlockStorage
2.5.1
com.apple.driver.AirPort.Brcm4331
700.20.22
com.apple.driver.AppleFWOHCI
5.0.2
com.apple.driver.AppleUSBHub
666.4.0
com.apple.driver.AppleAHCIPort
3.0.0
com.apple.nvenet
2.0.21
com.apple.driver.AppleUSBOHCI
656.4.1
com.apple.driver.AppleUSBEHCI
660.4.0
com.apple.driver.AppleSmartBatteryManager
161.0.0
com.apple.driver.AppleRTC
2.0
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
217.92.1
com.apple.nke.applicationfirewall
153
com.apple.security.quarantine
3
com.apple.driver.AppleIntelCPUPowerManagement
217.92.1
com.apple.AppleGraphicsDeviceControl
3.5.26
com.apple.kext.triggers
1.0
com.apple.driver.DspFuncLib
2.6.1f2
com.apple.vecLib.kext
1.0.0
com.apple.driver.AppleHDAController
2.6.1f2
com.apple.iokit.IOHDAFamily
2.6.1f2
com.apple.nvidia.classic.NVDANV50HalTesla
8.2.4
com.apple.nvidia.classic.NVDAResmanTesla
8.2.4
com.apple.iokit.IOAudioFamily
1.9.7fc2
com.apple.kext.OSvKernDSPLib
1.14
com.apple.iokit.IOSurface
91.1
com.apple.iokit.IOSerialFamily
10.0.7
com.apple.iokit.IOBluetoothFamily
4.2.4f1
com.apple.driver.AppleBacklightExpert
1.0.4
com.apple.driver.AppleSMBusController
1.0.11d1
com.apple.iokit.IOBluetoothHostControllerUSBTransport
4.2.4f1
com.apple.iokit.IOFireWireIP
2.2.6
com.apple.driver.IOPlatformPluginLegacy
1.0.0
com.apple.driver.AppleSMBusPCI
1.0.12d1
com.apple.driver.IOPlatformPluginFamily
5.7.0d11
com.apple.iokit.IONDRVSupport
2.4.1
com.apple.iokit.IOGraphicsFamily
2.4.1
com.apple.driver.AppleSMC
3.1.8
com.apple.driver.AppleUSBMultitouch
240.9
com.apple.iokit.IOUSBHIDDriver
660.4.0
com.apple.driver.AppleUSBMergeNub
650.4.0
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.iokit.IOAHCISerialATAPI
2.6.1
com.apple.iokit.IO80211Family
630.35
com.apple.iokit.IOFireWireFamily
4.5.5
com.apple.iokit.IOUSBUserClient
660.4.2
com.apple.iokit.IOAHCIFamily
2.6.5
com.apple.iokit.IONetworkingFamily
3.2
com.apple.driver.NVSMU
2.2.9
com.apple.driver.AppleEFINVRAM
2.0
com.apple.driver.AppleEFIRuntime
2.0
com.apple.iokit.IOHIDFamily
2.0.0
com.apple.iokit.IOSMBusFamily
1.1
com.apple.security.sandbox
278.11
com.apple.kext.AppleMatch
1.0.0d1
com.apple.security.TMSafetyNet
7
com.apple.driver.AppleKeyStore
2
com.apple.driver.DiskImages
371.1
com.apple.iokit.IOReportFamily
23
com.apple.driver.AppleFDEKeyStore
28.30
com.apple.iokit.IOUSBMassStorageClass
3.6.0
com.apple.driver.AppleUSBComposite
656.4.1
com.apple.iokit.IOSCSIBlockCommandsDevice
3.6.6
com.apple.iokit.IOStorageFamily
1.9
com.apple.iokit.IOSCSIArchitectureModelFamily
3.6.6
com.apple.iokit.IOUSBFamily
677.4.0
com.apple.driver.AppleACPIPlatform
2.0
com.apple.iokit.IOPCIFamily
2.9
com.apple.iokit.IOACPIFamily
1.4
com.apple.kec.pthread
1
com.apple.kec.corecrypto
1.0
System Profile:
Model: MacBookPro5,5, BootROM MBP55.00AC.B03, 2 processors, Intel Core 2 Duo, 2.53 GHz, 6 GB, SMC 1.47f2
Graphics: NVIDIA GeForce 9400M, NVIDIA GeForce 9400M, PCI, 256 MB
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1333 MHz, 0x830B, 0x4E54344743363442384842304E532D434720
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333235533642465238432D48392020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8D), Broadcom BCM43xx 1.0 (5.106.98.100.22)
Bluetooth: Version 4.2.4f1 13674, 3 services, 15 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: TOSHIBA MK3255GSXF, 250.06 GB
Serial ATA Device: MATSHITADVD-R   UJ-868
USB Device: Built-in iSight
USB Device: Internal Memory Card Reader
USB Device: Apple Internal Keyboard / Trackpad
USB Device: IR Receiver
USB Device: Wireless Optical Mouse
USB Device: BRCM2046 Hub
USB Device: Bluetooth USB Host Controller
Thunderbolt Bus:
Model: MacBookPro5,5, BootROM MBP55.00AC.B03, 2 processors, Intel Core 2 Duo, 2.53 GHz, 6 GB, SMC 1.47f2
Graphics: NVIDIA GeForce 9400M, NVIDIA GeForce 9400M, PCI, 256 MB
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1333 MHz, 0x830B, 0x4E54344743363442384842304E532D434720
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333235533642465238432D48392020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8D), Broadcom BCM43xx 1.0 (5.106.98.100.22)
Bluetooth: Version 4.2.4f1 13674, 3 services, 15 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: TOSHIBA MK3255GSXF, 250.06 GB
Serial ATA Device: MATSHITADVD-R   UJ-868
USB Device: Built-in iSight
USB Device: Internal Memory Card Reader
USB Device: Apple Internal Keyboard / Trackpad
USB Device: IR Receiver
USB Device: Wireless Optical Mouse
USB Device: BRCM2046 Hub
USB Device: Bluetooth USB Host Controller
Thunderbolt Bus:

riyazfrombangalore,
your 13-inch Mid 2009 MacBook Pro requires 1066 MHz RAM, but you have 1333 MHz RAM installed. Try replacing the 1333 MHz RAM with 1066 MHz RAM — Macs can be picky about the RAM which they find acceptable.

I'm getting the grey screen during start up and can't boot the computer. I did a cmnd R but worried it would automatically wipe my hard drive and reinstall OS. Is there a risk at cmnd R will result in wiped HD without me actively making that choice?

I'm getting the grey screen during start up and can't boot the computer - MacBook Pro with lion.
I did a command r after doing some research but got nervous that it would automatically wipe my hard drive and reinstall OS.
I was nervous because it asked me for language for software use before any options were presented (such as repair via disk utility). It looked similar to an OS install.So I powered off....Is there a risk at command r will result in wiped HD without me actively making that choice?

Repair the Hard Drive and Permissions - Mavericks, Lion/Mountain Lion
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
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 then click on the Repair Permissions button. When the process is completed, then quit DU and return to the main menu. Select Restart from the Apple menu.
Reinstall Mountain Lion or Mavericks
OS X Mavericks- Reinstall OS X
OS X Mountain Lion- Reinstall OS X
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is
three times faster than wireless.

I updated Efi firmware, but force quit twitter to install. Now system won't come on, it just shows grey screen with the spinning wheel loading. I am running lion 10.7.3

I updated Efi firmware, but force quit twitter to install. Now system won't come on, it just shows grey screen with the spinning wheel loading. I am running lion 10.7.3.
Thank you

The following support article is somewhat outdated. Where it refers to booting from an installation disc, you should boot from your recovery partition (if running 10.7 or later) by holding down the key combination command-R at the chime.
Mac OS X: Gray screen appears during startup

Mac freezes, shows grey screen then starts back up

Similar Messages

Maybe you are looking for