Mac Pro :: Unable To Boot / Kernel Panic At Boot And Graphics Card Failure
Mar 9, 2008
Yesterday my screen (30" Apple Cinema) started showing symptoms of graphics card failure, jagged lines across the screen. I rebooted my Mac Pro and it was gone. Then it happened again an hour later, this time the machine didn't boot, I get the Apple logo, and then it hangs up and the screen is shifted to left (I get apple logo on left side of the monitor instead of the middle) and jagged lines all over.
So the first thing I tested was using Target Disk Mode, it works. I can access my Mac Pro's internal HD's by TDM from my MacBook Pro. Then I tested single user mode, it does boot, I can't read what's written since the screen is shifted to left, but if I type (without seeing) reboot and hit enter, it reboots. So I assume the single user mode is working.
What else can I try to 100% make sure it's my graphics card that failed and everything else is ok with Mac Pro? I already ordered a graphics card replacement but I wouldn't like to be surprised if the Mac Pro still doesn't boot when the card arrives. It won't boot from Apple Startup DVD either. Same thing happens, gray logo then kernel panic with jagged lines all across the shifted screen.
View 21 Replies
ADVERTISEMENT
Oct 2, 2009
Yesterday my screen (30" Apple Cinema) started showing symptoms of graphics card failure, jagged lines across the screen. I rebooted my Mac Pro and it was gone. Then it happened again an hour later, this time the machine didn't boot, I get the Apple logo, and then it hangs up and the screen is shifted to left (I get apple logo on left side of the monitor instead of the middle) and jagged lines all over.
So the first thing I tested was using Target Disk Mode, it works. I can access my Mac Pro's internal HD's by TDM from my MacBook Pro. Then I tested single user mode, it does boot, I can't read what's written since the screen is shifted to left, but if I type (without seeing) reboot and hit enter, it reboots. So I assume the single user mode is working.
What else can I try to 100% make sure it's my graphics card that failed and everything else is ok with Mac Pro? I already ordered a graphics card replacement but I wouldn't like to be surprised if the Mac Pro still doesn't boot when the card arrives.
P.S. It won't boot from Apple Startup DVD either. Same thing happens, gray logo then kernel panic with jagged lines all across the shifted screen.
View 7 Replies
View Related
Apr 21, 2010
Yesterday I was helping someone getting to know their MacBook Pro (early 2008, Intel core 2 duo 2.4GHz, Mac OS X 10.5.2). I installed Perian and Flip4Mac and Firefox 3.6. I also checked for updates because she's on a very old version. I tried downloading the updates, but because we had a very bad internet connection I stopped the download quite early on and told her to do it at home. However after I left she tried to shut down the computer but it hanged. She manually shut it down using the power button. When she tried to turn it on again she got a kernel panic message saying she should reboot. This however didn't work.
Now I've tried all sorts of things. I've removed Perian and Flip4Mac manually. I did a disk verification (all was well) and a permissions verification and repair. I tried booting in safe mode (still won't boot) clearing the SMC and resetting PRAM, none of it worked. I just wanted to check here first before either taking it to an Apple store or reinstalling Mac OS X. I've read on forums about hardware failing (RAM mostly). No idea if that's the case. I tried a hardware test, but I don't have her DVDs and used my own with version 10.5.5. The Standard test said it was all ok, but the extended test seemed to hang. I could ask for her own DVDs which I will need anyway if I'm going to reinstall Mac OS X.
Some details of the kernel panic:
The error code is: 0x000000010
Apart from that it says the following:
Backtrace terminated-invalid frame pointer 0
Kernel loadable modules in backtrace (with dependencies):
com.apple.driver.AppleIntelCPUPowerManagement(76.2.0)@0x2e63c000->0x2e65afff
And later on it says: Mac OS version: Not yet set.
And of course it shows some more info with lots of hex codes, I can type them out for you if you like, but I read elsewhere that the error message is usually not very useful. Would you recommend going to an Apple store to see if the RAM is faulty? Or do a reinstall of Mac OS X?
View 2 Replies
View Related
Feb 15, 2009
I have an iMac that I bought in October 2007. All of a sudden, when I try to boot up my computer, I get a kernel panic. Can't get any further than the kernel panic even though I keep on re-booting.
View 4 Replies
View Related
Jul 21, 2009
I am a network adminstrator (for a windows network ) but personnally an Apple User. I am savy with linux and unix enough to get around etc, so my knowledge is broad and indepth.I have never had issues with my own Macs in the past 5 years, but my friends MacBook has an interesting issue.She told me that the computer was doing updates, and she didnt want to wait for it to finish and just shut it off in the middle of some OSX updates.
View 2 Replies
View Related
Nov 16, 2009
I moved over to an IMac from windows about 2 years ago and have never had any issues, until now. Whenever I boot my IMac I get a 'kernel panic' message (grey screen with 'you need to restart your computer in 4 languages). I cannot boot from my Mac HD, nor from a bootable superduper backup external HD, nor from my orginal SL or Leopard disk. All go into the kernel panic. I can however boot from my bootcamp Windows Vista partition. Tried booting into safe mode also does not work and gives the kernel panic screen. I have run both the standard and extended hardware tests and both have no errors. I booted in single user mode (that still works)and done a fcsk and unmount and both are without errors. Also done RAM flash. In single user modei can not find a PanicReporter directory or panic log. Cannot even install a fresh SL copy as my DVD wont boot either.
View 3 Replies
View Related
Dec 10, 2009
Recently my 2-year old iMac (20inch (2Ghz, 320GB, 4GB RAM, OSX Leopard) has been crashing every day. The way to temporally "fix" the kernel panic is to restart the machine and boot into the instal disc, and run the disk utility (repair permissions, then repair disk). If I do not run the disk utility daily, the computer will begin crashing again over and over. Below you'll find the the crash data (which is always the same):
Interval Since Last Panic Report: 0 sec
Panics Since Last Report: 1
Anonymous UUID: A60F4F7D-F369-40E4-96F1-F2810273F105
BSD process name corresponding to current thread: kextd
Mac OS version:
9L31a
Kernel version:
Darwin Kernel Version 9.8.0: Wed Jul 15 16:55:01 PDT 2009; root:xnu-1228.15.4~1/RELEASE_I386
System model name: iMac7,1 (Mac-F4238CC8)
System uptime in nanoseconds: 15150601001
unloaded kexts: (none)
I honesty don't know what to do to stop the crashing (other than runing disk utility every day). This is never happened before now.
View 4 Replies
View Related
Apr 23, 2012
Ever since I've got this iMac on the office, I've got the occasional kernel panics. At first they seemed to redeem themselfs during runtime, but for a while now, they seem to pop up at boot. And I mean, even not getting the Apple logo and it already freezes. I seem to be having this problem only in a frequency of say... once in two months or so? Â
Today I got it again and it even occured two times in a row, third time the system booted up. I would like to know whats up, I figure this must be a hardware issue since the system doesn't even load up. I'm a bit worried about sending this machine for it's warranty, since I won't have a machine for like 3 weeks until it gets back...
Here's the kernel panic:Â Â
Interval Since Last Panic Report:Â 274968 sec
Panics Since Last Report:Â Â Â Â Â Â Â Â Â 2
Anonymous UUID:Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 26D2C9E5-2CDA-4386-AEEC-A21012A8C927Â Â
Tue Apr 24 08:06:35 2012
[code].....
Info:
iMac (27-inch Mid 2010), Mac OS X (10.7.3)
View 1 Replies
View Related
Jun 30, 2012
I got a friend and they are owner of an old MacBook pro aluminum 15 inch with intel core 2 duo.But now the problem. It doesn't boot anymore and you will see this:And then The circkel thing (I don't know the name in English haha) stops and I see the message that I have to re-boot the mac again. I tried serveral things. I tried to boot up the OSX cd but it doesn't work. Safe mode doesn't work. Nothing works. Does anybody know what the problem is?
Info:
MacBook
Pro, Mac OS X (10.7.2)
View 5 Replies
View Related
Apr 20, 2012
What can I do when my computer doesn't boot and it appears a message "panic kernel"?
Info:
iMac (21.5-inch Mid 2011), Mac OS X (10.7)
View 5 Replies
View Related
Sep 24, 2009
I've got a Powermac G5 desktop. I recently purchased a used keyboard for it off of Ebay. The computer was working fine with just a mouse. Shortly after the keyboard was plugged in, I got a kernel panic, and had to restart. I restarted, and immediately got a message saying "you need to restart your computer", and followed by another kernel panic.
Now, I get a kernel panic and "restart your computer" message, even if the keyboard is unplugged.
I was planning to do a clean install of OS X anyway, and figured that since the computer is completely useless at this point, now would be a pretty good time to go ahead and do it. So I tried to boot from the install CD by inserting the CD and holding down the 'C' key. No result -- it doesn't show me the "boot menu", and instead proceeds as usual, to it's "Restart your computer" message and subsequent kernel panic.
So I then tried rebooting and holding down the "Option" key, and managed to get to the boot menu. I selected "Mac OS X Install Disc 1" and clicked the "--->" button ... kernel panic again.
I'm at a complete loss for what to do next. Any help with this would be much appreciated. All I want to do is reinstall OS X.
How can there be a kernel panic from the boot CD? Apple didn't make it where it tries to use the kernel from disk during install did they?
I'm coming from a Linux background, and am not at all familiar with OS X, so forgive me if I've left information out that I should have included. Please let me know if this is the case, and I'll do what I can to provide it for you.
View 3 Replies
View Related
Nov 10, 2010
my name is SPC Sanders. I am a forward observer currently deployed to Afghanistan. I've owned a Macbook Pro for a couple of years.
About three weeks ago, I made the stupid mistake of attempting to run iOSX so I could dual boot with Windows 7 (all stuff I acquired while I was home on midtour leave.) The install seemed to be ok, however, I noticed immediately I could not make any changes to settings as my administrator password was no longer working. (Administrator is my only account on this laptop.)
At fear of losing my operability, I simply did not power down for that whole time. However, I recently moved bases, and alas, the time came to power down.
Upon bootup, I get a constant spinning wheel. I left this on for a couple of hours just to be sure, then realized it was a lost cause. I tried booting in safe mode, and I got some kernel panic. It says a bunch of stuff about debugger calling the panic, bla bla bla, but the thing that caught my eze was Mac OS version not set yet.
After booting in safe mode, getting that error, and powering off, my laptop will boot into a grezish blueish lightblueish (alternating) type of screen, which sometimes has the spinning wheel, sometimes not. Again, nothing.
I understand I will probably need my OS disc to fix this, but I didn't bring it with me. Am I SOL?
View 7 Replies
View Related
Dec 5, 2009
Mac G5 ppc OSX10.4.11
Starting up from any boot disk will give me a kernel panic forcing me to hard restart.
Background:
After many freezes I ran disk utility and I get:
Checking Catalog file.
Invalid index key
The volume Macintosh HD needs to be repaired.
Error: The underlying task reported failure on exit
1 HFS volume checked
Volume needs repair
So I use my wife's Imac startup disk to boot it in order to repair but I get the dreadfull death screen (I know how to press the C) I'm thinking maybe it's because her disk if for her Intel proc so I go and buy a copy of disk warrior 4, and same problem.
View 4 Replies
View Related
Mar 20, 2010
Stupidly installed this: [URL] wanting better performance from my Nvidia 8600M GT 512Mb. Was asked to restart after install & wouldn't boot (only getting the grey then blue screen in 10.6.2) Am now unable to boot up in anything other than Safemode. While installing update is gives the option to revert, tried this in safe mode but it ends in a fail. If it can revert then somewhere is a backup of the original driver yeah? Where is it & can restore it manually/rename it as the original? Tried to use TimeMachine but won't boot for me in Safemode.
View 2 Replies
View Related
May 13, 2012
Macbook Pro won't boot. Symptoms preceding failure included failure to open Firefox. When trying to cold boot I can get as far as the start-up sound, the Apple logo, and the spinning whieel (spins for a bit but not for very long) and then major failure. Not running Liom.
Info:
imac 10.1, Mac OS X (10.6.2), also have macbook pro running os 10.5
View 2 Replies
View Related
Mar 19, 2010
I installed USB Overdrive (a program), I clicked on restart and my iMac never got up. When I start it, the HDD and fans do work. But there is no boot sound, and when I change sound levels, I cannot hear it. I think, it never makes it to OSX. It does not load the OS. I dont think it is Graphics card (HD2600) failure.
When I try to reset PRAM, nothing happens. Usually I must hear it restart again with loud boot sound but it never happens. Also my keyboard does not seem to work, as the CAPSLOCK button does not light up, when pressed. I changed RAM to different moduls, still the same. I checked the iMac RAM on a different computer, it works. Maybe USB Overdrive killed the USB slots? As my USB keyboard does not seem to work
View 1 Replies
View Related
Jan 13, 2010
Installed windows 7 today (geniune copy) to play the Star Trek Online open beta, managed to download and install it, but when I go to play it, it crashes. Went to performance information and tools and under graphics it says: Total Memory Not Detected and everything is 0MB apart from display adapter which says 6.1.7600.16385 and monitor resolution.
I have a 24" iMac 3.06Ghz with 8800 graphic card. Few weeks ago I had windows 7 installed for dragon age, ran like a charm, but I got rid of partition (dont ask why)
yes I have installed the bootcamp drivers!
View 5 Replies
View Related
Oct 15, 2010
I have read a million different posts, forums and most places people wouldn't want to go. This Mac is being very stubborn.
I have tried booting to safe mode, running the install disk, tried to load the utility on the install disk even tried a copy of diskwarrior (but I am not sure if it was a bootable copy).
In almost every instance the machine tries to load the cd and then spits it out and I get the restart screen. A few times I get the install to load but then it takes me to a screen that says something like �startup� run or install from these device after reboot, or something to that effect.
I even tried the command, option p r. If I just hit option with no disk it will list the mac hd. The machine is about 5 years old and is running osx 10.4.1?
This isn�t my machine so I can�t answer many questions about the OS. I was given a Snow Leopard 10.5 disk that appears to have been open.
View 3 Replies
View Related
Jul 27, 2009
Fri Jul 24 11:26:18 2009
panic(cpu 0 caller 0x001AB0FE): Kernel trap at 0x003f8db3, type 14=page fault, registers:
CR0: 0x8001003b, CR2: 0x0c800af3, CR3: 0x01894000, CR4: 0x00000660
EAX: 0x064005b4, EBX: 0x04228c60, ECX: 0x0544e000, EDX: 0x004c3ca0
CR2: 0x0c800af3, EBP: 0x30db3d08, ESI: 0x04228c60, EDI: 0x060b1d90
EFL: 0x00010206, EIP: 0x003f8db3, CS: 0x00000008, DS: 0x30db0010
Error code: 0x00000000
Backtrace (CPU 0), Frame : Return Address (4 potential args on stack)
0x30db3b08 : 0x12b4c6 (0x45ec20 0x30db3b3c 0x13355c 0x0)
0x30db3b58 : 0x1ab0fe (0x468ecc 0x3f8db3 0xe 0x468678)
0x30db3c38 : 0x1a1703 (0x30db3c50 0x23958139 0x30db3d08 0x3f8db3)
0x30db3c48 : 0x3f8db3 (0xe 0x48 0x30db0010 0x41b0010)
0x30db3d08 : 0x40d8e9 (0x4228c60 0x64005b4 0x30db3d58 0x4228c60)
0x30db3d28 : 0x443494 (0x4228c60 0x64005b4 0x0 0x19f1e4)
0x30db3d78 : 0x18a0a1 (0x4228c60 0x64005b4 0x60b1dac 0x60b1dc0)
0x30db3db8 : 0x12d4d6 (0x640058c 0x60b1d90 0x0 0x0)
0x30db3df8 : 0x1264fa (0x6400500 0x0 0x38 0x30db3ee4)
0x30db3f08 : 0x198fa3 (0x30db3f44 0x0 0x0 0x0)
0x30db3fc8 : 0x1a1cea (0x4e45280 0x0 0x10 0x4e47d40)
No mapping exists for frame pointer
Backtrace terminated-invalid frame pointer 0xb00806c8
BSD process name corresponding to current thread: coreaudiod
Mac OS version:
9J61
Kernel version:
Darwin Kernel Version 9.7.0: Tue Mar 31 22:52:17 PDT 2009; root:xnu-1228.12.14~1/RELEASE_I386
System model name: MacBook5,1 (Mac-F42D89C8)
System uptime in nanoseconds: 11461291451307
unloaded kexts:
com.apple.driver.InternalModemSupport2.4.0 - last unloaded 156697539418
loaded kexts:
com.pctools.iantivirus.kfs1.0.1
com.apple.driver.AppleHIDKeyboard1.0.8b1 - last loaded 85755306859
com.apple.driver.AppleHWSensor1.9d0
com.apple.driver.AppleBluetoothHIDMouse1.2.3f1
com.apple.driver.InternalModemSupport2.4.0
com.apple.iokit.IOBluetoothSerialManager2.1.6f8
com.apple.filesystems.autofs2.0.2
com.apple.driver.AppleHDAPlatformDriver1.6.8a3
com.apple.driver.AppleUSBTCButtons1.7.4f1
com.apple.driver.AppleUSBMultitouch189.32
com.apple.driver.AppleUSBTCKeyEventDriver1.7.4f1
com.apple.driver.AppleUSBTCKeyboard1.7.4f1
com.apple.driver.AppleIRController110
com.apple.driver.AGPM100.6.5
com.apple.driver.AppleHDA1.6.8a3
com.apple.driver.AppleMikeyHIDDriver1.0.6
com.apple.driver.AppleUpstreamUserClient2.7.5
com.apple.driver.AppleMikeyDriver1.6.8a3
com.apple.driver.AppleHDAController1.6.8a3
com.apple.driver.AppleGraphicsControl2.8.11
com.apple.driver.AppleTyMCEDriver1.0.0d28
com.apple.Dont_Steal_Mac_OS_X6.0.3
com.apple.driver.AudioIPCDriver1.0.6
com.apple.nvidia.nv50hal5.4.4
com.apple.kext.AppleSMCLMU1.4.3d2
com.apple.GeForce5.4.4
com.apple.driver.ACPI_SMC_PlatformPlugin3.4.0d10
com.apple.driver.NVSMU1.1.7
com.apple.driver.AppleSMBusPCI1.0.1d1
com.apple.driver.AppleLPC1.2.12
com.apple.driver.AppleBacklight1.6.0
com.apple.driver.SMCMotionSensor2.1.1d2
com.apple.driver.BroadcomUSBBluetoothHCIController2.1.6f8
com.apple.driver.AppleUSBMergeNub3.4.3
com.apple.iokit.IOSCSIMultimediaCommandsDevice2.0.9
com.apple.iokit.SCSITaskUserClient2.0.9
com.apple.driver.XsanFilter2.7.91
com.apple.iokit.IOAHCISerialATAPI1.1.1
com.apple.iokit.IOAHCIBlockStorage1.2.1
com.apple.driver.AppleFileSystemDriver1.1.0
com.apple.driver.AppleAHCIPort1.6.0
com.apple.driver.AppleUSBHub3.4.0
com.apple.iokit.IOUSBUserClient3.3.1
com.apple.driver.AirPortBrcm43xx363.35.0
com.apple.nvenet1.0.48
com.apple.driver.AppleUSBEHCI3.4.3
com.apple.driver.AppleUSBOHCI3.3.5
com.apple.driver.AppleEFINVRAM1.2.0
com.apple.driver.AppleSmartBatteryManager158.10.0
com.apple.driver.AppleRTC1.2.3
com.apple.driver.AppleHPET1.4
com.apple.driver.AppleACPIPCI1.2.4
com.apple.driver.AppleACPIButtons1.2.4
com.apple.driver.AppleSMBIOS1.4
com.apple.driver.AppleACPIEC1.2.4
com.apple.driver.AppleAPIC1.4
com.apple.security.seatbelt107.12
com.apple.nke.applicationfirewall1.6.77
com.apple.security.TMSafetyNet3
com.apple.driver.AppleIntelCPUPowerManagement76.0.0
com.apple.driver.DiskImages199
com.apple.BootCache30.4
com.apple.driver.AppleHIDMouse1.2.3f1
com.apple.driver.IOBluetoothHIDDriver2.1.6f8
com.apple.iokit.IOSerialFamily9.4
com.apple.driver.DspFuncLib1.6.8a3
com.apple.driver.AppleSMBusController1.0.1d1
com.apple.iokit.IOHDAFamily1.6.8a3
com.apple.iokit.IOAudioFamily1.6.9fc3
com.apple.kext.OSvKernDSPLib1.1
com.apple.NVDAResman5.4.4
com.apple.driver.IOPlatformPluginFamily3.4.0d10
com.apple.iokit.IONDRVSupport1.7.3
com.apple.iokit.IOGraphicsFamily1.7.3
com.apple.driver.AppleSMC2.2.1d2
com.apple.driver.AppleUSBBluetoothHCIController2.1.6f8
com.apple.iokit.IOBluetoothFamily2.1.6f8
com.apple.iokit.IOUSBHIDDriver3.2.2
com.apple.driver.AppleUSBComposite3.2.0
com.apple.iokit.IOSCSIBlockCommandsDevice2.0.9
com.apple.iokit.IOBDStorageFamily1.5
com.apple.iokit.IODVDStorageFamily1.5
com.apple.iokit.IOCDStorageFamily1.5
com.apple.iokit.IOSCSIArchitectureModelFamily2.0.9
com.apple.iokit.IOAHCIFamily1.5.0
com.apple.iokit.IO80211Family216.1
com.apple.iokit.IONetworkingFamily1.6.1
com.apple.iokit.IOUSBFamily3.4.3
com.apple.driver.AppleEFIRuntime1.2.0
com.apple.iokit.IOSMBusFamily1.1
com.apple.iokit.IOStorageFamily1.5.6
com.apple.iokit.IOHIDFamily1.5.5
com.apple.driver.AppleACPIPlatform1.2.4
com.apple.iokit.IOPCIFamily2.6
com.apple.iokit.IOACPIFamily1.2.0
View 8 Replies
View Related
Jun 24, 2010
i started up my Mac the other day and this
Panic(cpu 0 caller 0x0043913F): �Unable to find driver for this platform : �ACPI�.
�@/Source Cache/xnu/xnu-1228.15.4/iokit/Kernel/IOPlatformExpert.cpp:1407
Debugger called: <panic>
Backtrace (CPU 0), Frame : Return Address ( 4 potential args on stack)
0x41643dd8 : 0x12b4c6 (0x45f91c 0x41643e0c 0x13355c 0x0)
0x41643e28 : 0x43913f (0x4a6228 0x4e47710 0x41643e58 0x4eb4580)
0x41643e48 : 0x417068 (0x4eadd00 0x4eadd80 0x1 0x3f1478)
0x41643ea8 : 0x41890b (0x4eadd80 0x4eadd00 0x4eb4600 0x0)
0x41643f28: 0x41816f (0x4eadd80 0x4eb4680 0x8 0xffffffff)
0x41643f28: 0x419803 (0x4eadd80 0x0 0x1a40b5 0x4ea98b8)
Backtrace terminated-invalid frame pointer 0
BSD process name corresponding to current thread: Unknown
Mac OS version:
Note yet set
Kernel version:
Darwin Kernel Version 9.8.0: Wed Jul 15 16:55:01 PDT 2009; root :xnu-1228.15.4~1/RELEASE_I386
View 5 Replies
View Related
Jan 17, 2008
I'm having problems with my powerbook freezing up and needing to be restarted. It's been concluded that when you apply pressure left of the trackpad it freezes with a kernel panic error.
Does anyone know if this can be fixed without a new logicboard? What causes the kernel panic error? Is it allways a hardware problem??
View 1 Replies
View Related
Aug 3, 2006
So I installed osx 10.4 server on a Power Mac G4 (white/blue)
Went throught the setup screens and did a complete reformat / install.
Just boots to the loader screen. (Where the mac face shows, followed by a question mark) and just cycles over and over.
I can put the DVD in at this point and restart the install.. I did go in and check the disk permissions and disk status and both passed.
View 2 Replies
View Related
May 29, 2012
a friend recently gave me a g5 power mac that had some issues, and the failure was described as intermittant. The machine supposedly would work properly when booted and start freezing up after time, but if turned on the next day it would work properly for some time. I assumed it was an overheating issue, but apperently there is more to the picture. I have tried booting the machine quite a few times and the display always reads no signal. The machine sounds as if it were booting normally, but there is not output. At first I assumed it was my display cable, which was a DVI-D single link, however the DVI-D dual link cable leads to the same result. Is it nessicary to have a DVI-I cable? None of the error LEDs light up on the motherboard. After doing some hunting I haven't found anyone with the same issue, but I am wondering if I should assume the graphics card is dead. What steps do I need to take to isolate a graphics card failure in a power mac g5?
View 3 Replies
View Related
Dec 11, 2008
The string of problems I've encountered started a few days ago. I normally let my imac go to sleep by itself but, on this occasion I told it to sleep via the apple menu. When I awoke the imac the screen was frozen. No mouse movement, no clock movement, nothing. At this point I turned the power off and back on again. It didn't get past the white screen (before the gray with apple logo). I then tried resetting the PRAM, booting in safe mode, and booting from my os disc. Nothing worked.
After several tens of tries it magically booted. It stayed active long enough for me to back up all my data (transferring at least 100GB), reformat the hdd, reinstall leapord, transfer data back, and use it until I let it sleep again.
View 2 Replies
View Related
May 22, 2012
why i have to unplug the power cable from the back of my imac after every power failure at my home to get the imac to boot up. I've tried resetting the surge protecter and unplugging there. However, the only option is to unplug the cord from the back of the monitor/imac before it will boot up.Â
Info:
iMac, Mac OS X (10.7.4)
View 6 Replies
View Related
Jun 15, 2012
Just got my new Macbook Pro Retina. Migrated my applications and data from my Macbook Air. Everything worked great. Apple Update advised that new updates were available. I accepted and ran the updates. Now it gets a kernal panic at boot. Can boot into Safe Mode however. I used Command R to reinstall OSX but that did not correct my problem. Same kernal panic persists.
View 1 Replies
View Related
Dec 2, 2008
I just recently started to experience some very unusual behavior on an older PowerBook G4, and I was wondering if anyone has experienced this before, as I can't seem to find any documented info on this.Basically, out of the blue, the user began to experience issues waking from sleep, while using the laptop closed with external monitor, USB keyboard and mouse. Although a powercord was always connected, the machine seemed to be powering off.For a while, hitting the power button would boot things up again, properly, but not anymore. I have since disconnected all peripherials. Now, when pressing the power button, the machine will beep 3 times and then repeat itself every so often. The sleep led will blink three times, go solid, then repeat. Sometime the harddrive tries to spin, sometimetimes not
View 1 Replies
View Related
Jun 21, 2010
I know this is a fairly common subject matter but I have tried just about everything suggested but with no success. detailed below are my findings, I was wondering if anyone better qualified than me could suggest a diagnosis?
What does it do?
I hear the fans and hard drive and see the white/grey boot screen with the apple logo and spinning cog. The cog will spin for anything from 5 - 30 seconds before freezing. Some disk activity will continue for a short time afterwards before everything grinds to a halt?
View 4 Replies
View Related
Nov 26, 2009
I tried to install snow leopard on my 3 mos. old macbook pro and received a failure message with the invalid node structure, rebuilding catalog B-tree message.
Not sure what to do, I tried booting up from the leopard install disk and it took about 15 minutes to boot up and everything is wonky, doesn't work right.
View 1 Replies
View Related
Nov 7, 2006
when my PowerBook (15", bought new in Aug 2004) wakes from sleep, the harddrive makes a dreaded tapping/clicking sound. It's very prominent and is not your standard HDD "chatter."Often, Finder will hang and I'm forced to power-cycle the machine. Most of the time, it boots without incident.Lately, however, there have been incidents. Tonight, when I got home, it froze. I tried to power-cycle it, but got nothing. I plugged it in.
View 3 Replies
View Related
