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I have been up and down search engines trying to figure out how to fix this problem I recently encountered on my iMac.
The problem happend as followed:
I have a 32gb partition on windows vista on my imacs hard drive. Windows wanted me to do an update as usual, and i did. When it was in the third and final stage of configuring the update, the computer froze and I had to restart the computer.
Once i turned on the mac, there was scattered "stuck" pixels all over the screen, some were flashing blue.
I tried to enter windows through the option key at start up but it just brings me to a black screen.
When i try to boot in OSX it loads for an abnormal amount of time then brings me to the multilingual error message. I restarted several times reaching the same error, with the same "stuck" pixels.
I retested the PRAM, heard the two chimes.
THis time, the "stuck" pixels were in a new pattern, vertical lines down the screen, about 8 across every 2 inches.
After resetting the PRAM it still brings me to the black screen in vista and kernel panic message in OSX.
Then...
I entered single user mode, and it found some errors using /sbin/fsck -fy
I ran the command a couple of times to ensure all errors were fixed and the "volume appears to be ok" appeared consistently.
I then used "shutdown -h now" and turned the mac back on.
The pixels were still on the screen and still brought me to the kernel panic screen, as well as the black screen in vista.
I gave up and left my imac off for about 5 hours.
I came back with new hope to try and fix the computer.
I removed all first party ram, two 1 gb sticks, then reinserted.
I turned on the mac and everything was fine.
For some reason the fans in the imac were on full power blowing really fast.
There was no more stuck pixels on the screen and it booted, very slowly, to OSX.
As soon as I entered I used the disk util and repaired permissions. There seemed to be many errors in the flash plugin folder. maybe about 30 of them.
I restarted the imac, and everything was fine, everything was back to normal speed.
Once the imac went into screen saver mode for about 15 min, the screen froze and the flurry screen saver looked distorted. I restarted the imac.
Once i restarted the imac the same "stuck pixels" were back.
I tried using all previous methods, all volumes appear ok in single user mode but I continue to receive the kernel panic message along with the pixels.
I can not start from the snow leopard dvd, because i get the kernel message.
I can not boot into safe mode, because of the kernel message.
I can not use a live linux CD because it takes me to a black screen.
Although I did notice one thing.
Once I use the /sbin/fsck -fy command follwed by the exit command, i receive a string of messages, checking the normal functions.
All appear ok but there is a message mentioning the NTFS partition log check not being clear, then it says unable to mount volume cant (read/write)
I am assuming the vista update somehow damaged something but i am unsure because I was able to boot normally into OSX twice after I received the symptoms the first time.
Does anyone have any idea on how to fix this?
THank you for your time reading this very long post
Intel iMac early 2008 24' Mac OS X (10.6.2)
The problem happend as followed:
I have a 32gb partition on windows vista on my imacs hard drive. Windows wanted me to do an update as usual, and i did. When it was in the third and final stage of configuring the update, the computer froze and I had to restart the computer.
Once i turned on the mac, there was scattered "stuck" pixels all over the screen, some were flashing blue.
I tried to enter windows through the option key at start up but it just brings me to a black screen.
When i try to boot in OSX it loads for an abnormal amount of time then brings me to the multilingual error message. I restarted several times reaching the same error, with the same "stuck" pixels.
I retested the PRAM, heard the two chimes.
THis time, the "stuck" pixels were in a new pattern, vertical lines down the screen, about 8 across every 2 inches.
After resetting the PRAM it still brings me to the black screen in vista and kernel panic message in OSX.
Then...
I entered single user mode, and it found some errors using /sbin/fsck -fy
I ran the command a couple of times to ensure all errors were fixed and the "volume appears to be ok" appeared consistently.
I then used "shutdown -h now" and turned the mac back on.
The pixels were still on the screen and still brought me to the kernel panic screen, as well as the black screen in vista.
I gave up and left my imac off for about 5 hours.
I came back with new hope to try and fix the computer.
I removed all first party ram, two 1 gb sticks, then reinserted.
I turned on the mac and everything was fine.
For some reason the fans in the imac were on full power blowing really fast.
There was no more stuck pixels on the screen and it booted, very slowly, to OSX.
As soon as I entered I used the disk util and repaired permissions. There seemed to be many errors in the flash plugin folder. maybe about 30 of them.
I restarted the imac, and everything was fine, everything was back to normal speed.
Once the imac went into screen saver mode for about 15 min, the screen froze and the flurry screen saver looked distorted. I restarted the imac.
Once i restarted the imac the same "stuck pixels" were back.
I tried using all previous methods, all volumes appear ok in single user mode but I continue to receive the kernel panic message along with the pixels.
I can not start from the snow leopard dvd, because i get the kernel message.
I can not boot into safe mode, because of the kernel message.
I can not use a live linux CD because it takes me to a black screen.
Although I did notice one thing.
Once I use the /sbin/fsck -fy command follwed by the exit command, i receive a string of messages, checking the normal functions.
All appear ok but there is a message mentioning the NTFS partition log check not being clear, then it says unable to mount volume cant (read/write)
I am assuming the vista update somehow damaged something but i am unsure because I was able to boot normally into OSX twice after I received the symptoms the first time.
Does anyone have any idea on how to fix this?
THank you for your time reading this very long post
Intel iMac early 2008 24' Mac OS X (10.6.2)