Mac won't start up and shows grey screen

My mac won't start up this morning ? It has a full charge of battery and even plugged in it just shows the grey screen. Any help.

Please restart your Mac and hold the 'Option'-key to see your start-up discs. If you do not see any start-up discs it could be your hard disk cable that is faulty. This is a common problem with Macbooks, but I am not sure this issue has been fixed with the Retina models. I've had this problem with my 2012 Pro, and a new cable did the job. Very easy to do yourself!
You can also start Internet Recovery (need wifi or cable) and start up Disk Utilities to see if your hard disk shows up there.
Please let me know.

Similar Messages

My Mac won't start up and Im using DiscWarrior. When I restart the computer with "c" down, the screen goes black. Is this ok? Do I just wait it out?

my Mac won't start up and Im using DiscWarrior. When I restart the computer with "c" down, the screen goes black. Is this ok? Do I just wait it out?

Have you just tried repairing with Disk Utility?
Repair the Hard Drive and Permissions - 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.

I've recently update to Yosemite, ever since my Mac won't boot up from the grey screen

ive recently update to Yosemite, ever since my Mac won't boot up from the grey screen, I've checked on the utilities and disk can not be repaired. I'm gutted is it dead?.........how can I solve this......help please
<Re-Titled By Host>

Did you mean Command + Option + R for internet recovery?
The only key commands I know that involve P is a PRAM reset:
https://support.apple.com/kb/PH11243?viewlocale=en_US&locale=en_US
Or maybe I am missing or misunderstanding something?

My Mac won't start up just shows " You need to restart your computer"

After my itune failure, my mouse turned to the spin but nothing happened but it's so bothering so I restart my computer.
When it restart, my Mac just won't start up stuck in the apple logo with the spinner below then suddenly shows up "You need to restart you computer. Hold down the Power button for serveral seconds or press the restart button."
Do anyone know how to fix this?

Classic kernel panic. See
What is a kernel panic,
Technical Note TN2063: Understanding and Debugging Kernel Panics,
Mac OS X Kernel Panic FAQ,
Resolving Kernel Panics, and
Tutorial: Avoiding and eliminating Kernel panics for more details.

My imac won't start up past the grey screen, apple and spinning clock

Hi there. First time posting - usually either apple support website or previous threads solve the problem. Alas, not this time.
I have an intel imac - can't tell you much about the details as I can't get any info out of it. I installed snow leopard about a year ago - no issue since then other than occassionally the screen goes black but nothing major.
Yesterday, I backed up to my usual passport backup and then today, it froze. I couldn't turn it off or restart at all so resorted to the power button. Since then, I can turn it on, it goes to the grey screen (no blue screen) and I get the apple logo and the spinning clock/wheel. For hours and hours....
So, I tried one of the apple support pages and worked through - peripherals, safe boot, NVRAM, PRAM, tried to reboot with mac osx disc (the original not snow leopard) - nothing. Absolutely nothing changes - same old grey screen, apple logo and spinning clock/wheel.
HELP - do I try and reboot with the snow leopard disc? I don't know what to do next - I am no techie so half the threads don't even sound like English to me.
Thanks in advance, hope you geniuses out there can help me out.
abcvic

Thanks for the reply.
I had tried to reboot with the original disc but it never worked. The imac just spits out the disc and eventually, I am back at the grey screen, apple logo and wheel spinning. I tried it one more time following your reply. Same outcome.
My instal disc 1 had the instruction re hardware test which I have also tried with no success. I can't remember if it came with a disc 2 though I seem to have a couple - I also have a macbook and that seems to be still alive even if it is slow.
I tried to reboot with Snow Leopard disc - power on, chime then hold down C key. Same old - grey screen, apple logo and wheel spinning. Disc spat out eventually.
Any other suggestions welcomed or I am off to Apple tomorrow.

My mac won't start up and then freezes

My mac wont start up and then freezes when I try to run an OS X installation disc. How do I fix it?

MacBook Pro, Mac OS X (10.5.4), Im trying to use an OS X 10.4 disc
That may not be possible. Why are you using a Tiger disk?

IMac won't start up passed the grey screen

Last friday my iMac (late 2006, 24", 2.33 duo core Intel, OS 10.6.8) gave me the spinning beach ball.
Restarting resulted in: first the apple screen with the progress indicator, followed by grey screen..
That was it. It hangs at the grey screen.
I've been busy this weekend testing all kinds of ideas to get my imac to fully start up again.
I checked the RAM, it's fine.
I flushed NVRAM, wild guess, but nothing changed.
Starting up in safe mode doesn't work.
Starting up in recovery mode doesn't work.
On the upside, I was able to start my imac up in Target mode. Using the host computer and Disk Utlity I can see there's nothing wrong with the HD. All the data is still there!, so later today I'll make a copy of the complete HD, hoping/thinking that I won't copy whatever is wrong.
I had Disk Utility repair all the permissions.
I've used the host computer to reinstall the OS on my imac.
But on start up my beloved iMac still won't get passed the grey screen.
I'm thinking something goes wrong before my Mac even gets to the HD. Maybe it's the firmware, but I'm not really sure that firmware matters in this case. And I wouldn't know how to reinstall the latest version of firmware because my imac won't start up from it's disk drive
I'm thinking maybe something could be wrong with the graphic card's RAM, though on start up I can see the apple logo just fine.
I'm not able to start up from CD, I've tried that because I wanted to reinstall my OS (before I figured out how to do that in Target Mode) by putting the OS disk in my imac's own disk drive. Staring up with the C key still gets me the grey screen. Staring up with Option key shows no other option but the HD.
So is there anybody out there who has an idea that could help me further along?
Any help is greatly appreciated!
Frank

Hi Jan,
If you have another firewire Mac you can check if the HD of your Mac is OK by connecting them with a firewire cable and use target-mode. That way I found out my HD was just fine.
It also offers you the chance to run a diagnostic program to check if anything else is fine. I used TechTool to do that. But everything checked out fine.
In the end I decided the problem is probably hardware. Some electronic part that broke. Very frustrating that some small transistor or so is keeping me from using my otherwise fine iMac.
I contacted a repairshop that also works for the local Mac retailer. They told me my iMac was concidered 'classic' and therefor it wasn't economically not worth the trouble trying to repair it.
I gave up, took two weeks to mourn the loss of my beloved iMac, and bought a Mac mini.
FrankV
Judging by your name I'm guessing I could've anwered this in Dutch.

MBP won't start up past initial grey screen!!!

My MBP just stopped starting up today. When I turn it on, it goes to the normal grey screen with the apple. Then, when it switches to the blue screen, it just gets frozen, and won't do anything. I don't know what to do. Any suggestions????

DiskWarrior would probably fix it. Did you try to fsck it?
1. Reboot/Startup holding your Command-S key down.
2. At the command line type the following and hit 'Return.'
/sbin/fsck -fy
3. After it has check/repaired your disk, type 'reboot' and hit 'Return' again. Unit should bootup normally.
-Bmer
Mac Owners Support Group
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How can I have ext hard disks show on "About this Mac/Storage" that are ousted and show on screen

I have Mac 10.9.5, Intel. I was working in iMovie, when message came up and said I do not have enough space on my hard disk.. I have several hundred GB available. All my ext. HD's appear on my screen. In "About this mac/storage" only my HD and two of the four external drives show up. The two ext. drives that show on "about This Mac" are full. I have done a disk utility check on every drive and they are fine. Also, the whole machine is very slow. I have rebooted also.

Problem description:
MAC OS X YOSEMITE, 13.1 MODEL, INTEL CORE I5 8’GB MEMORY, WHEN I OPEN IMOVIE, I GET A MESSAGE THAT THERE IS NO SPACE AND TO CLOSE IMMEDIATELY OR I WILL LOSE WORK, IT WILL EVEN CLOSE ITSELF. I HVE OVER 700 GB ON MY HARD DISK
EtreCheck version: 2.0.4 (89)
Report generated October 18, 2014 at 1:23:07 PM EDT
Hardware Information: ℹ️
iMac (21.5-inch, Late 2012) (Verified)
iMac - model: iMac13,1
1 2.7 GHz Intel Core i5 CPU: 4-core
8 GB RAM Upgradeable
BANK 0/DIMM0
4 GB DDR3 1600 MHz ok
BANK 1/DIMM0
4 GB DDR3 1600 MHz ok
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en1: 802.11 a/b/g/n
Video Information: ℹ️
NVIDIA GeForce GT 640M - VRAM: 512 MB
iMac 1920 x 1080
System Software: ℹ️
OS X 10.10 (14A389) - Uptime: one day 3:20:30
Disk Information: ℹ️
APPLE HDD ST1000LM024 disk0 : (1 TB)
S.M.A.R.T. Status: Verified
EFI (disk0s1) <not mounted> : 210 MB
Macintosh HD (disk0s2) / [Startup]: 999.35 GB (672.03 GB free)
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
USB Information: ℹ️
G-TECH G-DRIVE 2 TB
S.M.A.R.T. Status: Verified
EFI (disk4s1) <not mounted> : 210 MB
G-DRIVE (disk4s2) /Volumes/G-DRIVE : 2 TB (406.60 GB free)
Apple Inc. FaceTime HD Camera (Built-in)
Western Digital My Book 500.11 GB
S.M.A.R.T. Status: Verified
book 1 (disk3s1) <not mounted> : 500.11 GB
Western Digital My Book 1 TB
S.M.A.R.T. Status: Verified
disk2s1 (disk2s1) <not mounted> : 32 KB
my book 3 (disk2s3) /Volumes/my book 3 : 1 TB (25 KB free)
Western Digital My Book 1 TB
S.M.A.R.T. Status: Verified
EFI (disk1s1) <not mounted> : 210 MB
book 2 (disk1s2) <not mounted> : 999.86 GB
Western Digital My Book 1234 3 TB
S.M.A.R.T. Status: Verified
EFI (disk5s1) <not mounted> : 210 MB
My Book for Mac (disk5s2) /Volumes/My Book for Mac : 3 TB (1 TB free)
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Thunderbolt Information: ℹ️
Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
Mac App Store and identified developers
Kernel Extensions: ℹ️
/Applications/Extras/WD +TURBO Installer.app
[not loaded] com.wdc.driver.1394HP (1.0.11 - SDK 10.4) Support
[not loaded] com.wdc.driver.1394_64HP (1.0.1 - SDK 10.6) Support
[not loaded] com.wdc.driver.USB-64HP (1.0.3) Support
[not loaded] com.wdc.driver.USBHP (1.0.14) Support
/System/Library/Extensions
[not loaded] com.silex.driver.sxuptp (1.5.1) Support
[not loaded] com.tomtom.driver.UsbEthernetGadget (1.0.0d1) Support
[not loaded] com.wdc.driver.1394.64.10.9 (1.0.1 - SDK 10.9) Support
[loaded] com.wdc.driver.USB.64.10.9 (1.0.1 - SDK 10.9) Support
Problem System Launch Agents: ℹ️
[failed] com.apple.CallHistoryPluginHelper.plist
[failed] com.apple.cmfsyncagent.plist
[failed] com.apple.security.cloudkeychainproxy.plist
[failed] com.apple.spindump_agent.plist
Problem System Launch Daemons: ℹ️
[failed] com.apple.ctkd.plist
[failed] com.apple.icloud.findmydeviced.plist
[failed] com.apple.ifdreader.plist
[failed] com.apple.nehelper.plist
[failed] com.apple.wdhelper.plist
[failed] com.apple.xpc.smd.plist
Launch Agents: ℹ️
[running] com.Affinegy.InstaLANa.plist Support
Launch Daemons: ℹ️
[loaded] com.adobe.fpsaud.plist Support
User Launch Agents: ℹ️
[loaded] com.adobe.ARM.[...].plist Support
[loaded] com.adobe.ARM.[...].plist Support
[loaded] com.genieo.completer.download.plist Support
[loaded] com.genieo.completer.ltvbit.plist Support
[running] com.genieo.completer.update.plist Support
[loaded] com.google.keystone.agent.plist Support
User Login Items: ℹ️
iTunesHelper UNKNOWN (missing value)
System Events Application (/System/Library/CoreServices/System Events.app)
EPSON Scanner Monitor UNKNOWN (missing value)
Belkin Router Monitor Application (/Applications/Belkin/Belkin Router Monitor.app)
Mail Application (/Applications/Mail.app)
Safari Application (/Applications/Safari.app)
AdobeResourceSynchronizer ApplicationHidden (/Applications/Adobe Reader.app/Contents/Support/AdobeResourceSynchronizer.app)
Dropbox Application (/Applications/Dropbox.app)
apple-scc-20140818-081903 UNKNOWN (missing value)
Internet Plug-ins: ℹ️
FlashPlayer-10.6: Version: 15.0.0.152 - SDK 10.6 Support
Default Browser: Version: 600 - SDK 10.10
AdobePDFViewerNPAPI: Version: 11.0.06 - SDK 10.6 Support
AdobePDFViewer: Version: 11.0.06 - SDK 10.6 Support
Flash Player: Version: 15.0.0.152 - SDK 10.6 Mismatch! Adobe recommends 15.0.0.189
QuickTime Plugin: Version: 7.7.3
Google Earth Web Plug-in: Version: 6.0 Support
Silverlight: Version: 5.1.20513.0 - SDK 10.6 Support
iPhotoPhotocast: Version: 7.0
User Internet Plug-ins: ℹ️
fbplugin_1_0_3: Version: (null) Support
3rd Party Preference Panes: ℹ️
Flash Player Support
Growl Support
Time Machine: ℹ️
Skip System Files: NO
Mobile backups: OFF
Auto backup: YES
Volumes being backed up:
book 2: Disk size: 999.86 GB Disk used: 999.86 GB
Destinations:
G-DRIVE [Local]
Total size: 2 TB
Total number of backups: 71
Oldest backup: 2014-01-15 09:49:47 +0000
Last backup: 2014-10-18 17:19:31 +0000
Size of backup disk: Too small
Backup size 2 TB < (Disk used 999.86 GB X 3)
Top Processes by CPU: ℹ️
      3% WindowServer
      1% AppleIDAuthAgent
      0% Google Chrome
      0% fontd
      0% AppleSpell
Top Processes by Memory: ℹ️
241 MB com.apple.WebKit.WebContent
146 MB iTunes
137 MB Mail
120 MB mds_stores
103 MB WindowServer
Virtual Memory Information: ℹ️

HT1379 My iMac won't start up and shows a grey screen with light blue bars Online instructions have been followed bur don't seem to work

Hello
Online instructions for rebooting don't seem to working
What next

Light blue bars is a new one.
Startup - Gray, Blue or White screen at boot, w/spinner/progress bar
Startup - Gray Screen
Startup Issues - Resolve
Startup Issues - Resolve (2)
If you live near an Apple Store, make a Genius Bar appointment to have the computer tested. Supposedly there is no charge for testing.
Genius Bar Reservation US

Mac won't start up, no chime, no screen, just whirring! Please help :(

I haven't used my mac for a two years or so and it's been sitting on top of my wardrobe since leaving college. Now that I have space for a better desk I set it up last night.
When I powered it up the power light came on followed with two loud beebing noises. There was no start up chime and just a blank screen, but the power light remains on and the "whirring" sound continues for as long as I keep it running.
I've tried resetting the PRAM - holding commandoption+rp, several times but with no luck.
I have also tried restarting from the original discs but with no luck.
I also tried to link my mac up to a monitor to see whether it was the monitor that is causing the problem. I linked it up to a LaCie CRT monitor but nothing happened when I started up the mac.
I would be extremely grateful if anyone had any suggestions or help on this matter.
I love my mac, it got me through college and I don't want it dead now.
Wendi
iMac DV (slot loading) 400 10GB Mac OS 9.2.x
iMac DV (slot loading) 400 10GB Mac OS 9.2.x OS 9.2
iMac DV (slot loading) 400 10GB Mac OS 9.2.x

The other thing you could do is reseat the RAM. A lot of times this is the case if the computer just starts up beeping. Flip the computer over and unlock the flip up access door on the bottom. Then after you have opened it remove the RAM sticks by pressing on the tan (usually that color) tabs on both sides of the RAM stick and pull the RAM all the way out. Wait a second and then put it back in making sure that the tabs click all the way in. They should be upright and fitted into the notch on the side of the RAM. If there are 2 sticks do it to both of them. See if that works for it. You will probably have to replace the battery also afterwards which is easy in that same access door you can pop it out and put the new one in if you have skinny enough fingers. The RAM trick should get it started though.

G4 Won't start. Stuck at Grey Screen with Spinning wheel

It won't make it past this screen.
I have a Dual G4 867Mhz with 2GB ram. (3) harddrives.
Any Help would be greatly appreciated.
Thanks
The last thing that happened was last night I left my computer on downloading some stuff. When I woke up my dad had unplugged the ethernet cable and It had locked up some programs with the spinning beachball. I proceeded by trying to shut the program with apple+q. It shut down the Finder window. I then was forced to just shut down the computer by holding down the power button. I didn't try starting up again at that time, but now about 3 hours later I tried to start up again, and it's stuck at this screen.

Install OS X on one of your disk drives. Or get a FW case and drive, then update to 10.3.9.
Buy a copy of Disk Warrior 4.
Ask Dad.

Computer wont start up and shows gray screen

My Macbook Pro shows a spinning (thinking) dial when it starts up but does not go any further than that. Can anyone give me tips on how to proceed?

Hi T,
Here are Apple's suggestions; please try them all:
http://support.apple.com/kb/TS2570

I have a PB G4 that won't start. It shows the gray apple screen, shows the blue screen, and then the screen goes black, and "sleep" light pulses.

I have a PB G4 that won't start. It shows the gray apple screen, shows the blue screen, and then goes black. The sleep light pulses. From there, I can't turn it off normally. I have tried restarting the PMU. And I have tried unplugging the ac adaptor and removing the battery. From there I have plugged only the ac adaptor in, and it will begin to start but do the same thing once it shows the blue screen.
I tried only using the battery (without plugging in the ac adaptor) and the same thing happens. I tried starting the computer while holding down CTRL, Option, P, and R, waiting to hear the start up chimes 3 times, and then holding Shift as it starts up. But I still get the black screen once I see the blue one, and the computer's sleep light pulses.
I need something very important from this computer. And was able to start it last night. I did not shut down the computer, and was going to take it to a friends to use his printer today. The computer was in sleep mode in the morning.
Thanks for any help!
Gina

What your describing could be a logic board or memory issue.
You did or did not hear 3 startup chimes? If you hear 3 chimes when you start it, that would indicate a memory problem. Try reseating the memory to see if that makes a difference. If you have 2 RAM cards, try one then the other in each slot. If you have 1 RAM card, move it to the other slot. Powerbooks can develop one bad slot.
You may need to pull the hard drive out of the Powerbook, put it into an external case, then read it from another mac.

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 .

Mac won't start up and shows grey screen

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