MacBook Pro Mid 2012 not starting up after Yosemite Update

I'm using a MacBook Pro mid 2012 model , enrolled into Yosemite Public Beta Program ...
After the official public launch , app store suggested that i rather update from beta 5 to beta 6 , as downloading extra 5 gig of OS data seemed unnecessary for me , I just updated from the app store.
Post the update , after shutting down my MacBook , I tried starting it up after 8 hours , it failed to respond to any of my prompts .
Keyboard not responding
Power Button not responding
Li-Po Battery indicator alone works ,
When plugged MagSafe , it indicates charging .
The Sleep Indicator (in the front - that of hard disk drive ) blinks occasionally.
Later, when i tried powering up with MagSafe , It booted luckily , after some 20 hours of work , i shut the system down ,
Again when i tried booting up , it failed .
The problem persists since 3 days.
I tried booting up in Safe Mode - No result
Tried Verbose Booting up - No result
Cleared NV RAM - No result
Cleared SMC as Apple instructed for Intel Based MacBooks - No result.
Removed Battery and kept aside for a while , After an hour tried powering up , It booted up , Went till Apple Logo , The loading bar was some 45%
Then it started to go down with a black screen ,
It never starts up again.
After regular intervals of removing and installing battery , it starts up to white screen and goes off.
I am really worried and desperate now.
I am not sure whether my HDD is dead or my Battery is dead or my Logic board is dead or my Yosemite Install was not right ?
After hours of online research , nothing seems to be helpful .
People at Apple Care (Premium ReSeller , India) are so irresponsible in attending the issue ,
They say its helpless without even doing some basic troubleshoot.
Where would it have went wrong and What am i supposed to do now ?
PLEASE HELP !!

darkrider92,
I have the same model MacBook Pro as the one that you got from your mom. Were you able to install the 10.6.8 update successfully onto the factory drive? Were you using the factory RAM when you tried to install the 10.6.8 update on the SSD?
Have you checked the Web site of the SSD’s manufacturer, to see if there’s a firmware update available for the SSD?
You can download the 10.6.8 update outside of Software Update from Apple here; in case you need to try to install this update several times, running it from your local disk would be more convenient than waiting for it to download again.

Similar Messages

MacBook Pro mid-2012 running very slowly after upgrade to Yosemite

Problem description:
MacBook Pro mid-2012 - installed Yosemite, and the system now crawls. Webpages have very delayed responses, can take 30+ seconds to react to typing or selection. I turned off FileVault, that did not appear to help. Emptied the trash, removed some obsolete fonts. Any help for what else to try would be much appreciated.
EtreCheck version: 2.0.11 (98)
Report generated November 30, 2014 at 4:10:51 PM CST
Hardware Information: ℹ️
MacBook Pro (13-inch, Mid 2012) (Verified)
MacBook Pro - model: MacBookPro9,2
1 2.9 GHz Intel Core i7 CPU: 2-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
Intel HD Graphics 4000 -
Color LCD 1280 x 800
DELL 1901FP 1280 x 1024 @ 60 Hz
System Software: ℹ️
OS X 10.10.1 (14B25) - Uptime: 16:36:35
Disk Information: ℹ️
APPLE HDD HTS547575A9E384 disk0 : (750.16 GB)
S.M.A.R.T. Status: Verified
EFI (disk0s1) <not mounted> : 210 MB
disk0s2 (disk0s2) <not mounted> : 749.30 GB
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
MATSHITADVD-R   UJ-8A8
USB Information: ℹ️
Western Digital My Book 640.14 GB
S.M.A.R.T. Status: Verified
My Book (disk3s1) /Volumes/My Book : 640.13 GB (2.29 GB free)
HP Officejet J6400 series
Apple, Inc. Keyboard Hub
Apple Inc. Apple Keyboard
Toshiba External USB 3.0 2 TB
S.M.A.R.T. Status: Verified
EFI (disk2s1) <not mounted> : 210 MB
Time Machine Backups (disk2s2) /Volumes/Time Machine Backups : 2.00 TB (544.67 GB free)
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. iPhone
Apple Inc. Apple Internal Keyboard / Trackpad
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Computer, Inc. IR Receiver
Thunderbolt Information: ℹ️
Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
Mac App Store and identified developers
Kernel Extensions: ℹ️
/Applications/Boom.app
[loaded] com.globaldelight.driver.BoomDevice (1.3 - SDK 10.9) Support
/Applications/Toast 10 Titanium/Toast Titanium.app
[not loaded] com.roxio.BluRaySupport (1.1.6) Support
[not loaded] com.roxio.TDIXController (1.7) Support
/Applications/VMware Fusion.app
[not loaded] com.vmware.kext.vmci (90.4.19) Support
[not loaded] com.vmware.kext.vmioplug.10.1.26 (10.1.26) Support
[not loaded] com.vmware.kext.vmnet (0143.58.62) Support
[not loaded] com.vmware.kext.vmx86 (0143.58.62) Support
[not loaded] com.vmware.kext.vsockets (90.4.24) Support
/System/Library/Extensions
[not loaded] com.SiliconImage.driver.Si3132r5 (1.5.16) Support
[not loaded] com.beceem.BeceemAppleWiMAXAdapter (5.2.56d16) Support
[not loaded] com.devguru.driver.DIFMCDFree (1.1.0) Support
[not loaded] com.devguru.driver.DIFMSerial (1.1.0) Support
[not loaded] com.fklt.driver (1.8.0) Support
[not loaded] com.novatelwireless.driver.3G (2.2.8) Support
[not loaded] com.novatelwireless.driver.DisableAutoInstall (1.2) Support
[not loaded] com.sierrawireless.driver.SierraDevSupport (2.0.6) Support
[not loaded] com.sierrawireless.driver.SierraFSCSupport (2.0.6) Support
[not loaded] com.wacom.kext.wacomtablet (6.1.5) Support
[loaded] zoom.us.ZoomAudioDevice (1.1 - SDK 10.8) Support
/System/Library/Extensions/NovatelWireless3G.kext/Contents/Plugins
[not loaded] com.novatelwireless.driver.3GData (2.2.8) Support
/Users/[redacted]/Downloads/Transmit.app
[not loaded] com.panic.TransmitDisk.transmitdiskfs (4.0.0 - SDK 10.6) Support
Startup Items: ℹ️
ProTec6: Path: /Library/StartupItems/ProTec6
SATARaid5Daemon: Path: /Library/StartupItems/SATARaid5Daemon
Startup items are obsolete and will not work in future versions of OS X
Problem System Launch Agents: ℹ️
[failed] com.apple.bird.plist
[failed] com.apple.CallHistoryPluginHelper.plist
[failed] com.apple.CallHistorySyncHelper.plist
[failed] com.apple.cloudd.plist
[failed] com.apple.cmfsyncagent.plist
[failed] com.apple.coreservices.appleid.authentication.plist
[failed] com.apple.EscrowSecurityAlert.plist
[failed] com.apple.icloud.fmfd.plist
[failed] com.apple.nsurlsessiond.plist
[failed] com.apple.recentsd.plist
[failed] com.apple.scopedbookmarkagent.xpc.plist
[failed] com.apple.spindump_agent.plist
[failed] com.apple.telephonyutilities.callservicesd.plist
[failed] com.apple.xpc.loginitemregisterd.plist
Problem System Launch Daemons: ℹ️
[failed] com.apple.awdd.plist
[failed] com.apple.ctkd.plist
[failed] com.apple.icloud.findmydeviced.plist
[failed] com.apple.ifdreader.plist
[failed] com.apple.installd.plist
[failed] com.apple.MobileFileIntegrity.plist
[failed] com.apple.nehelper.plist
[failed] com.apple.nsurlsessiond.plist
[failed] com.apple.periodic-daily.plist
[failed] com.apple.softwareupdated.plist
[failed] com.apple.tccd.system.plist
[failed] com.apple.wdhelper.plist
[failed] com.apple.xpc.smd.plist
Launch Agents: ℹ️
[invalid?] com.adobe.AAM.Updater-1.0.plist Support
[failed] com.adobe.CS5ServiceManager.plist Support
[loaded] com.google.keystone.agent.plist Support
[loaded] com.oracle.java.Java-Updater.plist Support
[running] com.wacom.wacomtablet.plist Support
[loaded] org.macosforge.xquartz.startx.plist Support
Launch Daemons: ℹ️
[loaded] com.adobe.fpsaud.plist Support
[invalid?] com.adobe.SwitchBoard.plist Support
[loaded] com.google.keystone.daemon.plist Support
[running] com.icyblaze.iDocumentHelper.plist Support
[loaded] com.microsoft.office.licensing.helper.plist Support
[loaded] com.oracle.java.Helper-Tool.plist Support
[loaded] com.oracle.java.JavaUpdateHelper.plist Support
[loaded] com.roamingclient.cell.mac.roamingclient.plist Support
[not loaded] com.sierrawireless.SierraReset.plist Support
[running] com.sierrawireless.SWoCMon.plist Support
[invalid?] com.sierrawireless.SWoCTool.plist Support
[loaded] org.macosforge.xquartz.privileged_startx.plist Support
User Launch Agents: ℹ️
[invalid?] com.adobe.AAM.Updater-1.0.plist Support
[invalid?] com.adobe.ARM.[...].plist Support
[invalid?] com.adobe.ARM.[...].plist Support
[invalid?] com.citrixonline.GoToMeeting.G2MUpdate.plist Support
[loaded] com.koingosw.MacCleanse4Helper.Reminder.plist Support
[loaded] com.koingosw.MacCleanse4Helper.TrashWatcher.plist Support
User Login Items: ℹ️
Garmin Express Service Application (/Applications/Garmin Express.app/Contents/Library/LoginItems/Garmin Express Service.app)
Boom Application (/Applications/Boom.app)
iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
VMware Fusion Helper UNKNOWN (missing value)
Reminders Application (/Applications/Reminders.app)
VMware Fusion Start Menu Application (/Applications/VMware Fusion.app/Contents/Library/VMware Fusion Start Menu.app)
Google Chrome ApplicationHidden (/Applications/Google Chrome.app)
Box Sync Application (/Applications/Box Sync.app)
Dropbox 3 Application (/Applications/Dropbox 3.app)
Internet Plug-ins: ℹ️
JavaAppletPlugin: Version: Java 7 Update 60 Check version
o1dbrowserplugin: Version: 5.38.6.0 - SDK 10.8 Support
WacomNetscape: Version: 1.1.0-5 Support
Default Browser: Version: 600 - SDK 10.10
Flip4Mac WMV Plugin: Version: 3.0.0.126   - SDK 10.8 Support
WacomSafari: Version: 1.1.0-5 Support
AdobeAAMDetect: Version: AdobeAAMDetect 1.0.0.0 - SDK 10.6 Support
FlashPlayer-10.6: Version: 15.0.0.239 - SDK 10.6 Support
AdobePDFViewerNPAPI: Version: 11.0.09 - SDK 10.6 Support
Silverlight: Version: 5.1.20125.0 - SDK 10.6 Support
Flash Player: Version: 15.0.0.239 - SDK 10.6 Support
iPhotoPhotocast: Version: 7.0
googletalkbrowserplugin: Version: 5.38.6.0 - SDK 10.8 Support
QuickTime Plugin: Version: 7.7.3
AdobePDFViewer: Version: 11.0.09 - SDK 10.6 Support
CANONiMAGEGATEWAYDL: Version: 3.1.0.2 Support
CouponPrinter-FireFox_v2: Version: Version 1.1.7 - SDK 10.5 Support
SharePointBrowserPlugin: Version: 14.4.6 - SDK 10.6 Support
DirectorShockwave: Version: 11.6.5r635 Support
User Internet Plug-ins: ℹ️
WebEx64: Version: 1.0 - SDK 10.6 Support
CitrixOnlineWebDeploymentPlugin: Version: 1.0.105 Support
Google Earth Web Plug-in: Version: 7.1 Support
ZoomUsPlugIn: Version: ZoomBundleVersionNumber - SDK 10.9 Support
Safari Extensions: ℹ️
Omnibar
Audio Plug-ins: ℹ️
DVCPROHDAudio: Version: 1.3.2
3rd Party Preference Panes: ℹ️
Flash Player Support
Flip4Mac WMV Support
Java Support
MacFUSE Support
NTFS-3G Support
Tuxera NTFS Support
Time Machine: ℹ️
Skip System Files: NO
Auto backup: YES
Volumes being backed up:
Destinations:
Time Machine Backups [Local]
Total size: 2.00 TB
Total number of backups: 64
Oldest backup: 2013-11-30 08:18:51 +0000
Last backup: 2014-11-30 05:20:09 +0000
Size of backup disk: Excellent
Backup size 2.00 TB > (Disk size 0 B X 3)
Top Processes by CPU: ℹ️
    66% backupd
    22% mtmfs
     9% Box Sync
     3% WindowServer
     3% iTunes
Top Processes by Memory: ℹ️
735 MB backupd
129 MB Google Chrome
86 MB mds_stores
77 MB iTunes
69 MB firefox
Virtual Memory Information: ℹ️
28 MB Free RAM
1.65 GB Active RAM
1.64 GB Inactive RAM
1.28 GB Wired RAM
22.18 GB Page-ins
204 MB Page-outs

My apologies - this post was duplicated inadvertently. Please use: MacBook Pro mid-2012 running very slowly after upgrade to Yosemite
Thanks!

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.

Macbook Pro 7.1 not booting up after Software update

Hello everyone,
I have a problem, but first some context?
I recently got my mom's old Macbook Pro(7.1) with Intel's 2.4 Ghz C2D and Nvidia 320M graphics. A small upgrade from my 2009 MBP(5.5) but is in much better shape than my old machine. In that unit(5.5) I used a 40 GB SSD as a boot drive and a 640 GB Platter drive for general storage, and removed the optical drive, as I did not use it very often.
Well, now I transplanted both drives into the 7.1 MBP, but the system will get stuck at the grey screen. I then proceeded to backup all my data, and wipe both drives multiple times and tried to installs on a clean system.
I replaced the aftermarket ram I had with the factory sticks, put the factory drive and the Super Drive back in. Loaded up Snow Leopard via DVD on an empty drive.
It boots and runs just fine. So I put in the SSD to try it out. It loads OSX Snow Leopard just fine again. I go do a software update to 10.6.8, and on reboot to finalize, I get stuck again at the grey screen. The progress wheel freezes, and I am stuck until I do a forced shut-down.
Safe mode gets me nowhere, AHT does not work, Verbose mode freezes after 10 seconds or so and I have also reset the SMC and the NV/PRAM multiple times.
I am at a loss. I have a nearly pristine MBP that for some odd reason will not work for me in the slightest, despite my best efforts at attempting to diagnose the problem.
Note that all componenents that I listed,(SSD, Larger HDD, Upgraded Ram etc.) All worked flawlessly in my previous MacBook Pro.
Does one hardware generation make that much of a difference for an OS and for upgrades that clearly work in other Apple devices?

darkrider92,
I have the same model MacBook Pro as the one that you got from your mom. Were you able to install the 10.6.8 update successfully onto the factory drive? Were you using the factory RAM when you tried to install the 10.6.8 update on the SSD?
Have you checked the Web site of the SSD’s manufacturer, to see if there’s a firmware update available for the SSD?
You can download the 10.6.8 update outside of Software Update from Apple here; in case you need to try to install this update several times, running it from your local disk would be more convenient than waiting for it to download again.

MacBook Pro: Blank Screen and Random Crashes After Yosemite Update

Hello All!
So I'm living with the regret of updating my MacBook Pro to Yosemite. My MacBook Pro is an early 2011 version, and ever since I updated it - I literally cannot turn off the computer because when I go to turn it on, the screen is completely black. Performing the flashlight trick, the computer eventually lights up, on average three minutes later. However, that's not the only issues I have been having. My computer constantly loses WiFi signal and is crashing every two hours or so. It's not even that I have a lot of programs running; I literally only have Chrome running... So I'm not sure what I should do now. Is it even because of the Yosemite update?! Help please?!

Nothing obvious here, but better get rid of that remnant of CleanMyMac2. Also check if all software with kernel extensions, launch agents and launch daemons is still necessary and up to date (if not uninstall or update).

ITunes not starting up after Yosemite update

Hi Community,
Just updated my MacBook (13", Aluminum, late 2008) to Yosemite.
Having done this iTunes is not starting up any more. Also downloading and a second time updating iTunes 12.01.26 didn't help.
Can anyone help me with this ?

ok THANKS so much!!
it now works!!
First I removed iTunes.app from my system using these instructions: http://www.tekrevue.com/tip/uninstall-itunes/
Next I opened the App Store and it showed me iTunes under "Updates".
I reinstalled iTunes via the App Store and now I can launch iTunes as expected.
Because I didn't delete the iTunes folder inside my user's folder, all my content remained.
thanks to you :
uwe eberhard

Recently forced to update Macbook Pro (Mid 2012) from Mountain Lion to Yosemite. Performance is awful. Is there any way to change back/downgrade?

(Sorry if this isn't the correct category)
I have always been a fan of Apple and almost always love Firmware updates. OS X 10.9 and 10.10, however, I do not like.
I recently spent a lot of time going through all the troubleshooting steps Apple Support makes you go through before I called them to get my problems fixed as quickly as possible (no point wasting both our time). I had encountered scepticism in the past that maybe my problems were because I was running 10.8 and so to prove that it was in fact a hardware problem, I updated. AppleCare finally agreed to replace my logic board (for a second time) which fixed the performance problems I was having. The process took hours and I ended up being right the entire time.
I originally had my own little reasons for not wanting to update but decided I would try Yosemite since I didn't really have much of a choice at this point. I have now given it a good month and have concluded that this OS version is completely useless to me and near unusable.
A small list of the more annoying problems:
Photoshop crashes and/or needs restarting constantly
my Wacom Tablet doesn't function properly (or at all
my computer lags when I open Dashboard or App Exposé
I get the spinning beach ball for a good five seconds at times almost exclusively when using a feature of my computer such as Finder, Pages, iTunes, etc.
computer feels like it is lacking in specs
Additionally, there are a dozen little things about the way Yosemite behaves and looks that I find hard to ignore. I WOULD ignore these things if my software worked properly.
Yes, I did try reinstalling programs and drivers; no it didn't help.
I paid for a computer running Mountain Lion because I knew I could do my art on it, play the games I wanted, and do word processing the way I liked. Is there any way at all (no matter how long or difficult a process) to downgrade back to 10.8? And specifically without voiding my warranty?
I really don't want to be forced back to buying Windows but I spent a lot of money on something that is now not functioning in a way I can use it ):
TL;DR
had 10.8. needed to update to 10.10 so AppleCare would believe that I had hardware problems. Hardware is now replaced and I need 10.8 back without voiding my warranty.

GrandMasterB wrote:
My problem is the laptop came with Mountain Lion on it and I spent 2.5 DAYS in recovery trying to redownload the OS to install.
snip
That took about an hour and after the recovery finally opened I was prompted with downloading "Lion" instead of "Mountain Lion" I proceeded. It installed overnight. Now my Macbook has Lion on it and the only way to get Mountain Lion back is in the App Store for $20....
This does not make much sense if the Laptop had Mountain Lion on it from new. Internet Recovery downloads the current version of the OS that the machine was built with, are you sure that you did not upgrade to ML from Lion?
If you did you can redownload Mountain Lion for no charge.

Macbook pro mid 2012 no retina performance drop after efi

Hi, mi macbook pro mid 2012 no retina after efi update the performance are too slow, thats is the same problem with retina, please fix it, in osx mountain lyon the aplications that used every daywith video is poor, in bootcamp with games is the same problem, the cpu clock drops from3.3 ghz to 1.2 ghz or more. Waiting for a mew efi update bescause my mac is the same that a macbook air

No Apple hasn't officially stated anything about this issue. After I updated to EFI Update 2.0 I noticed the issues and started doing my research and found people in the Macrumors forums having the same problems and eventually I was reading that users that didn't update yet weren't seeing the update in their updates meaning Apple pulled the update from the servers. Other users reported after calling Applecare that they were aware of the issue.

My MacBook pro mid 2012 doesn't seem to have a "save as" function, so I can't seem to save multiple page pdf's together after moving thumbnails into the sidebar. It only saves the first page. I can't figure out the rename function either. Help?

My MacBook pro mid 2012 doesn't seem to have a "save as" function, so I can't seem to save multiple page pdf's together after moving thumbnails into the sidebar. It only saves the first page.
I do have a 2008 version of Microsoft Office installed to save money, but that shouldn't affect things. I can't figure out the "rename" function either. Help?

Oh, and I also reset my NVRAM, my computer hasn't frozen again yet, so I'm not sure if it has made a difference.

HT204384 SD Card will not mount on Macbook Pro Mid 2012 (non-retina), tried everything

I am trying to use a PNY 4GB SD Card on my Macbook Pro Mid-2012 (non-retina), but I cannot get it to mount or for the Macbook to even see it's there. I read some people had success slightly pulling it out, pushing it in faster, cleaning the port, etc. which I have tried all of these, but to no avail.
Anybody have an idea?
Thanks,
-Justin B.

Had problems reading SD cards after a Mountain Lion update. Try this XQuartz solution that fixed this for me. I'm using a 13" MBP mid-2012. All you have to do is install this programme and re-insert your SD card.
XQuartz no longer comes with new Macbooks, only X11.
See this support page from Apple on where you can download XQuartz.
http://support.apple.com/kb/HT5293?viewlocale=en_US&locale=en_US
You can download Xquartz directly from here:
http://xquartz.macosforge.org/landing/
This should be the most up to date version. If not check for updates once you have downloaded it.
Simply re-insert your SD card and voila!

My iPad 3 is not charging on my macbook pro mid-2012. It was working yesterday and it is not working now, and I'm trying to transfer files between them. How do I charge my iPad with my macbook without having to be a completely new computer?

I am trying to transfer files between my ipad 3 and my macbook pro mid-2012 and they will just not connect. I connected them yesterday and it worked fine. And i can not air drop these files into my ipad it has to be done through itunes. And i can not afford to buy a new computer. How do i get these two to connect without having to buy a completely new computer?

Computer USB ports, regardless of the computer maker, have a relatively low power output and thus are not good chargers. They will charge but it takes a long time. You should be charging your iPad from wall power, or a more powerful source like an in-car charger.
Buying another computer will not change that.

My non retina macbook pro mid 2012 will read the display its connected to but does not display anything at all

Hi there,
I have a macbook pro mid 2012 non retina display and i tried using an external display for it. I hooked it up and the screen blacked out and turned back on like normal and the computer itself was reading that the display was there. The only problem is that on the display itself there is no image of the macbook being displayed. im using a thunderbolt to vga connector and all the connection check out the only problem is the display. the display works on my other macbook that i have just fine i dont understand why it wouldnt work on this new one. Keep in mind i have had this computer for only 5 days.
Thanks in Advance

Hi, cubingcouple.
Thank you for visiting Apple Support Communities.
I understand that your MacBook is not working with your external display. display shows a blank screen. Here is the best troubleshooting resource to go through when experiencing these symptoms.
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/HT201177
Cheers,
Jason H.

Macbook pro mid-2012 13" has very slow disk access

Until 3 days ago my macbook pro mid-2012 13" running OX 10.8.3 was running fine. Then, it showed very slow response anytime it had to access the hard disk. After doing the usual checks and disk first aid repairs to no avail, I booted from my external disk with an older copy of my hard disk and everything then worked as normal, except when I accessed the internal hard disk, then it crawled once again (spinning beach ball, took many seconds just to open a finder window and then several minutes to display the contents). I ran the Apple Hardware Tests and it said everything was fine, even though it tooks several minutes before the test would actually start. I also ran the program BlackMagic Speed Disk to find out if the disk was having transfer speed problems and it showed a respectible transfer rate (60MB/s), not great but not like the 0.3MB/s I was getting when I tried to back up the internal disk. I was using Carbon Copy Cloner to try to back up the internal disk but had to give up since at 0.3MB/s, it would take days to back up the 250GB on the disk. I found on the web that using "restore" in Disk Utility, I could do a disk copy without the file by file copy which allowed me to back up my disk in "only" 6 hours. Booting from my newly made copy on an external disk worked fine and ran at nearly normal speed (slightly slower since it was an external disk running through USB2). As a final attempt to prove this was a disk problem, I erased the internal disk and reinstalled OSX 10.8. I am still waiting for this install to finish, it has been 5 hours although the progress bar said it should be done in 20 minutes. This was fairly convincing evidence that it is not a software or settings problem. However, all my web searches could find no other case of a problem like mine. I presume I have a failed hard disk but as all the diagnostic programs say it is working fine, I was hesitating to bring it in without hard diagnostic evidence. If anyone knows what might be the problem, it would be much appreciated to hear from you.

It should not take 5 hours to install Mac OS X. There is something wrong with the disk. Try reformatting where you do a wipe of the drive (an select the option to write zeros which will remap bad sectors). Then try to install MAc OS X.
I got this information from here:
http://reviews.cnet.com/8301-13727_7-20064489-263.html
Back up your data.
Use Time Machine or a system cloning utility to create a full and restorable backup of your data. If you suspect bad blocks, then when cloning you might consider not using a "block-level" copy process, since this will likely run into problems.
Boot to the utilities DVD.
If you have a boot DVD for a tool like Drive Genius or another drive utility, then boot to that; if not, use your OS X installation DVD (once you select your language, open Disk Utility from the Utilities menu).
Format the drive.
Using your selected utility, format the drive and check for bad blocks. If you are using Disk Utility, click the Erase tab, click the Options button, and then select the option to write zeros to the disk (you do not need to do multipass erase options, as this will provide no additional benefit for managing bad blocks). Writing to zeros may take a couple of hours depending on the size of the drive, but when done the drive will have remapped any blocks that were not reliably read.
Restore the OS installation.
If you have used Time Machine to create your backup, boot to your OS X installation DVD (if you are not using Disk Utility) and use the option in the Utilities menu to restore from backup. Attach your Time Machine drive and then proceed with the restoration, selecting the newest backup as the one to restore to your system. If you have used a system cloning tool, then attach the cloned drive and boot off of it (hold the Option key at start-up to select it from the boot menu). When you are booted to the cloned drive, run your cloning utility to copy the installation back to the computer's main boot drive.An optional approach here is to perform a full reinstallation of the OS from your installation DVD, and then migrate your data, applications, and settings from either the clone or the Time Machine backups using Apple's Migration Assistant.

Macbook pro mid-2012 GPU-panic

Hi, my Macbook Pro mid-2012 has recently started rebooting sporadically. After some investigation I found out that it is caused by GPU Panic which happens EVERY TIME when discrete GPU (NVidia 650M) is enabled and its temperature goes over 64-65 degrees (Celsius, according to iStat).
It seems it started to happen after one of the OS updates.
Did you faced this issue? Is it software or hardware related? Are there any workarounds/fixes?
Now I am using gfxCardStatus to use Integrated GPU only, but it makes not possible using any 3D-games on this laptop.
Thanks,
Nikolay

Are you running any anti-virus or internet security software? Any cleaning, tune-up, "keeper," or optimization apps that did not come preinstalled?
Are you set up to do torrent downloading?
Are you using backup software other than Time Machine, like that which comes bundled with a external hard drive?
Are you using an online backup serviceother than iCloud (Carbonite; MS OneDrive; Google Drive)?
Those can run up the internal temps.

Macbook Pro mid 2012 15" (non-retina) graphics tearing

Hello everyone,
I would like to post my experiences using two identical macbook pros 2012 (non-retina, with nVidia GT650M 512MB) who presented the same graphics cards glitches and problems, and hopefully to obtain some information.
Exhibit 1: My own macbook pro
Bought from France, in November 2012. Used mainly for professional non-graphics programming, it's clean, no bloated software, and only necessary professional tools are installed. 16Gbytes of memory, by Crucial.
At some point during July, when the machine was relatively cold and I was watching a youtube video, this happened (see attached pics). The mouse was moving, and the computer was fully operational, but with this "glitchy graphics overlay". I logged out, and logged back in. Problem disappeared and appeared again at random times, 4 times during an hour. All those times, a log-out and log-in would fix the problem. After that, I could not reproduce it. Apple changed the motherboard, claiming that it could be a faulty nVidia card.
Exhibit 2: My brother's macbook pro
Bought from Greece, in february 2013. Same model as my own, same RAM, same specs. Used for professional video editing, no bloated software, mostly using Final Cut Pro X. He noticed various malfunctions with FCPX, like freezing when applying a visual effect, and graphics tearing when rendering (that's when the nVidia card kicks in, normally). Yesterday, same symptoms as my macbook pro appeared, graphics tearing, etc.
EDIT: videos of the problem:
http://www.youtube.com/watch?v=jGBijGMO9NE
http://www.youtube.com/watch?v=jnEXtVWgKKM
Both machines are in a completely different environment (I live in France, my brother in Greece), non-smoking areas, and have worked in completely different ways. Both with OS X 10.8.4.
That's two out of two. Given nVidia's background, I am starting to feel that my purchase is not so reliable as I originally thought, and I am thinking that this problem is more generic than originally seemed.
Does anyone have any relevant information on this matter? Could these problems be related to issues with nVidia drivers? Is there any information about unreliable nVidia graphics cards on 15 inch macbook pros mid-2012 (non-retina)?

Hi there,
I would recommend taking a look at the troubleshooting steps found in the article below.
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/ht1573
-Griff W.

MacBook Pro Mid 2012 not starting up after Yosemite Update

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