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현재 버전 게시자: Tad Browning ,

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White Screen issues. Tried everything, even this forum!

텍스트:

== OK, iMac Late 2009 - White Screen Problem ==
 
'''Caution: Lengthy notes - (Skip toward bottom to read current situation and refer back to what I have tried)'''
 
Have a buddy that gave me his iMac and asked that I fix it for him.
 
Symptoms were that it would not start, gray screen, Apple and a Bar.
 
Tried all of the known answers:
 
* Tried Option in Target disk mode from a second iMac, nothing
* Started in D: nothing
* Reset the PRAM, OPT-CMD-P-R, got second tone
* Tried all USB ports to verify that keyboard was working
* Removed the screen, blew out the computer, then pulled and reseated the RAM
* Target disk mode - no, bar and Apple
* C - white screen only
* D - Hard Drive clicking, Hardware test came up, no trouble found
 
I suspect the HD may be full at this point. Hard drive seemed to stop making noise after trying to boot, still did not start
 
* Tried starting from CD, nothing, bar and apple present
* Target mode again, nothing
* Option key on startup, HD and CD showed, tried starting with CD, locked up
 
Did the same process but tried starting from HD, locked up
 
* Reset PRAM - didn't work
* Pulled the Hard Drive out of the iMac and installed it into a slot on my Mac Pro
* 8 Partitions showing on the completely full hard disk! Ran disk utilities but it wouldn't work. Ran Drive Genius and got an error on all of them.
* Ran Disk Utilities First Aid again and it appeared to work this time
* Tried starting in Safe Mode (Shift/start) - nothing
* CMD-S, single user mode, yes it came up, didn't know what to do at this point
* Cmd-SHIFT-V, safe mode plus verbose mode, nothing
 
Created a restore image of OS X 10.6 Snow leopard on a thumb drive, Option start and got nothing
 
* CMD -S again entered fsck -fy a dozen times, no luck
* Tried resetting the PRAM again, nothing
* Tried deleting multiple APS in Single user mode, no work!
* Reset SMC
 
Tried some of the above steps multiple times. After this point I stopped keeping notes.
 
Took the machine apart, installed a new hard drive and tried installing a new OS, would not work.
 
Took out the CD, Hard Drive, power supply, mother board, lower right cooling fan, blew out a lot of dust around the vents and installed a new PRAM battery (button)
 
Was able to hook up my 2007 iMac and start the 2009 iMac (problem) in Target mode. After a couple of tries was able to get the OS installed on the problem machine from my 2007 iMac. Still would not start on its own.
 
I was able to start the problem Mac using Option start with my 2009 Mac in Target disk mode. My iMac screen now showed up on the problem iMac! Still would not start on its own
 
I was also able to start up my iMac using the Option startup with the problem iMac in Target disk mode. Ran disk utilities and verified disk was ok,
 
'''CURRENT SITUATION'''
 
OS on the iMac is installed and it works on a separate iMac using Target disk mode on the problem iMac and starting with Option on the 2009 iMac
 
On startup the problem iMac still displays a white screen and doesn't start.
 
If my mother board wasn't working, I would not have been able to start the computer from another computer in Target Disk Mode
 
If My graphics card wasn't working, I shouldn't see the Target Disk Mode icon?
 
The HD has been verified on a 2007 iMac and a 2009 Mac Pro and it has a fresh install of OS X 10.5 Leopard
 
'''I am out of ideas.... Can anyone help me here???'''

기기:

iMac Intel 21.5" EMC 2308

현황:

open

승인된 답변:

316628

편집자: Dan ,

제목:

iMac(late 2009)WhiteWhite Screen issues. Tried everything, even this forum!
iMac(late 2009)WhiteWhite Screen issues. Tried everything, even this forum!

텍스트:

== okOK, iMac -LateLate 2009 - White Screen Problem ==
== okOK, iMac -LateLate 2009 - White Screen Problem ==
 
'''Caution: Lengthy notes - (Skip toward bottom to read current situation and refer back to what I have tried)'''
 
Have a buddy that gave me his iMac and asked that I fix it for him.
 
Symptoms were that it would not start, gray screen, Apple and a Bar.
 
Tried all of the known answers:
* Tried Option in Target disk mode from a second iMac, nothing
* Started in D: nothing
* Reset the PRAM, OPT-CMD-P-R, got second tone
* Tried all USB ports to verify that keyboard was working
* Removed the screen, blew out the computer, then pulled and reseated the RAM
* Target disk mode - no, bar and Apple
* C - white screen only
* D - Hard Drive clicking, Hardware test came up, no trouble found
 
Tried Option in Target disk mode from a second iMac, nothingI suspect the HD may be full at this point. Hard drive seemed to stop making noise after trying to boot, still did not start
Tried Option in Target disk mode from a second iMac, nothingI suspect the HD may be full at this point. Hard drive seemed to stop making noise after trying to boot, still did not start
 
started in D: nothing

Reset the PRAM, OPT-CMD-P-R, got second tone

Tried all USB ports to verify that keyboard was working

Removed the screen, blew out the computer, then pulled and reseated the RAM

Target disk mode - no, bar and Apple

C - white screen only

D - Hard Drive clicking, Hardware test came up, no trouble found

suspected that the HD may be full at this point. Hard drive seemed to stop making noise after trying to boot, still did not start

Tried
* Tried starting from CD, nothing, bar and apple present

Target

* Target
mode again, nothing

Option

* Option
key on startup, HD and CD showed, tried starting with CD, locked up
started in D: nothing

Reset the PRAM, OPT-CMD-P-R, got second tone

Tried all USB ports to verify that keyboard was working

Removed the screen, blew out the computer, then pulled and reseated the RAM

Target disk mode - no, bar and Apple

C - white screen only

D - Hard Drive clicking, Hardware test came up, no trouble found

suspected that the HD may be full at this point. Hard drive seemed to stop making noise after trying to boot, still did not start

Tried
* Tried starting from CD, nothing, bar and apple present

Target

* Target
mode again, nothing

Option

* Option
key on startup, HD and CD showed, tried starting with CD, locked up
 
Did the same process but tried starting from HD, locked up

Reset
* Reset PRAM - didn't work

Pulled

* Pulled
the Hard Drive out of the iMac and installed it into a slot on my Mac Pro

8 partitions

* 8 Partitions
showing on the completely full hard disk, randisk! Ran disk utilities but it wouldwouldn't work. Ran Drive Genius and got an error on all of them

Ran first aid
them.
* Ran Disk Utilities First Aid
again and it appeared to work

tried
this time
* Tried
starting in Safe Mode(Shift/startMode (Shift/start) - nothing

CMD-S

* CMD-S
, single user mode, yes it came up, didn't know what to do at this point

Cmd-SHIFT-V

* Cmd-SHIFT-V
, safe mode plus verbose mode, nothing

Reset
* Reset PRAM - didn't work

Pulled

* Pulled
the Hard Drive out of the iMac and installed it into a slot on my Mac Pro

8 partitions

* 8 Partitions
showing on the completely full hard disk, randisk! Ran disk utilities but it wouldwouldn't work. Ran Drive Genius and got an error on all of them

Ran first aid
them.
* Ran Disk Utilities First Aid
again and it appeared to work

tried
this time
* Tried
starting in Safe Mode(Shift/startMode (Shift/start) - nothing

CMD-S

* CMD-S
, single user mode, yes it came up, didn't know what to do at this point

Cmd-SHIFT-V

* Cmd-SHIFT-V
, safe mode plus verbose mode, nothing
 
Created a restore image of OS X 10.6 Snow leopard on a thumb drive, Option start and got nothing
* CMD -S again entered fsck -fy a dozen times, no luck
* Tried resetting the PRAM again, nothing
* Tried deleting multiple APS in Single user mode, no work!
* Reset SMC
 
CMD -S again entered fsck -fy a dozen times, no luck

Tried resetting the PRAM again, nothing

Tried deleting multiple APS in Single user mode, no work!

Reset SMC

tried the
Tried some of the above steps multiple times

after
times. After this point I stopped keeping notes.

Took the machine apart, installed a new hard drive and tried installing a new OS, no work
CMD -S again entered fsck -fy a dozen times, no luck

Tried resetting the PRAM again, nothing

Tried deleting multiple APS in Single user mode, no work!

Reset SMC

tried the
Tried some of the above steps multiple times

after
times. After this point I stopped keeping notes.

Took the machine apart, installed a new hard drive and tried installing a new OS, no work
 
Took out the CD, Hard Drive, power supply, mother board, lower right cooling fan, blew outmachine apart, installed a lot of dust around the ventsnew hard drive and installedtried installing a new PRAM battery(button)OS, would not work.
Took out the CD, Hard Drive, power supply, mother board, lower right cooling fan, blew outmachine apart, installed a lot of dust around the ventsnew hard drive and installedtried installing a new PRAM battery(button)OS, would not work.
 
Was able to hook up my 2007 iMac and start the 2009 iMac(problem) in Target mode. AfterTook out the CD, Hard Drive, power supply, mother board, lower right cooling fan, blew out a couplelot of tries was able to getdust around the OSvents and installed on the problem machine from my 2007 iMac. Still would not start on its own.a new PRAM battery (button)
Was able to hook up my 2007 iMac and start the 2009 iMac(problem) in Target mode. AfterTook out the CD, Hard Drive, power supply, mother board, lower right cooling fan, blew out a couplelot of tries was able to getdust around the OSvents and installed on the problem machine from my 2007 iMac. Still would not start on its own.a new PRAM battery (button)
 
I wasWas able to hook up my 2007 iMac and start the problem mac using Option start with my 2009 MaciMac (problem) in Target disk mode. My iMac screen now showed upAfter a couple of tries was able to get the OS installed on the problem iMacmachine from my 2007 iMac. Still would not start on its own.
I wasWas able to hook up my 2007 iMac and start the problem mac using Option start with my 2009 MaciMac (problem) in Target disk mode. My iMac screen now showed upAfter a couple of tries was able to get the OS installed on the problem iMacmachine from my 2007 iMac. Still would not start on its own.
 
StillI was able to start the problem Mac using Option start with my 2009 Mac in Target disk mode. My iMac screen now showed up on the problem iMac! Still would not start on its own
StillI was able to start the problem Mac using Option start with my 2009 Mac in Target disk mode. My iMac screen now showed up on the problem iMac! Still would not start on its own
 
I was also able to start up my iMac using the Option startup with the problem iMac in Target disk mode. Ran disk utilities and verified disk was ok,
 
'''CURRENT SITUATION'''
 
OS on the iMac is installed and it works on a separate iMac using Target disk mode on the problem iMac and starting with Option on the 2009 iMac
 
On startup the problem iMac still displays a white screen and doesn't start.
 
If my mother board wasn't working, I would not have been able to start the computer from another computer in Target Disk Mode
 
If My graphics card wasn't working, I shouldn't see the Target Disk Mode icon?
 
The HD has been verified on a 2007 iMac and a 2009 Mac Pro and it has a fresh install of OS X 10.5 Leopard
 
'''I am out of answers....anyone that couldideas.... Can anyone help meme here???'''
'''I am out of answers....anyone that couldideas.... Can anyone help meme here???'''

기기:

iMac Intel 21.5" EMC 2308

현황:

open

편집자: Tad Browning ,

제목:

WhiteiMac(late 2009)White Screen issues...triedissues. Tried everything, even this forum!
WhiteiMac(late 2009)White Screen issues...triedissues. Tried everything, even this forum!

텍스트:

== ok, iMac -Late 2009 - White Screen Problem ==

'''Caution: Lengthy notes - (Skip toward bottom to read current situation and refer back to what I have tried)'''

Have a buddy that gave me his iMac and asked that I fix it for him.

Symptoms were that it would not start, gray screen, Apple and a Bar.

Tried all of the known answers:

Tried Option in Target disk mode from a second iMac, nothing

started in D: nothing

Reset the PRAM, OPT-CMD-P-R, got second tone

Tried all USB ports to verify that keyboard was working

Removed the screen, blew out the computer,  then pulled and reseated the RAM

Target disk mode - no, bar and Apple

C - white screen only

D - Hard Drive clicking, Hardware test came up, no trouble found

suspected that the HD may be full at this point. Hard drive seemed to stop making noise after trying to boot, still did not start

Tried starting from CD, nothing, bar and apple present

Target mode again, nothing

Option key on startup, HD and CD showed, tried starting with CD, locked up

Did the same process but tried starting from HD, locked up

Reset PRAM - didn't work

Pulled the Hard Drive out of the iMac and installed it into a slot on my Mac Pro

8 partitions showing on the completely full hard disk, ran disk utilities but it would work. Ran Drive Genius and got an error on all of them

Ran first aid again and it appeared to work

tried starting in Safe Mode(Shift/start) - nothing

CMD-S, single user mode, yes it came up, didn't know what to do at this point

Cmd-SHIFT-V, safe mode plus verbose mode, nothing

Created a restore image of OS X 10.6 Snow leopard on a thumb drive, Option start and got nothing

CMD -S again entered fsck -fy a dozen times, no luck

Tried resetting the PRAM again, nothing

Tried deleting multiple APS in Single user mode, no work!

Reset SMC

tried the some of the above steps multiple times

after this point I stopped keeping notes.

Took the machine apart, installed a new hard drive and tried installing a new OS, no work

Took out the CD, Hard Drive, power supply, mother board, lower right cooling fan, blew out a lot of dust around the vents and installed a new PRAM battery(button)

Was able to hook up my 2007 iMac and start the 2009 iMac(problem) in Target mode. After a couple of tries was able to get the OS installed on the problem machine from my 2007 iMac. Still would not start on its own.

I was able to start the problem mac using Option start with my 2009 Mac in Target disk mode. My iMac screen now showed up on the problem iMac

Still would not start on its own

I was also able to start up my iMac using the Option startup with the problem iMac in Target disk mode. Ran disk utilities and verified disk was ok,

'''CURRENT SITUATION'''

OS on the iMac is installed and it works on a separate iMac using Target disk mode on the problem iMac and starting with Option on the 2009 iMac

On startup the problem iMac still displays a white screen and doesn't start.

If my mother board wasn't working, I would not have been able to start the computer from another computer in Target Disk Mode

If My graphics card wasn't working, I shouldn't see the Target Disk Mode icon?

The HD has been verified on a 2007 iMac and a 2009 Mac Pro and it has a fresh install of OS X 10.5 Leopard

'''I am out of answers....anyone that could help me???'''

기기:

iMac Intel 21.5" EMC 2308

현황:

open

원문 게시자: Tad Browning ,

제목:

White Screen issues...tried everything, even this forum!

텍스트:

== ok, iMac -Late 2009 - White Screen Problem ==

'''Caution: Lengthy notes - (Skip toward bottom to read current situation and refer back to what I have tried)'''

Have a buddy that gave me his iMac and asked that I fix it for him.

Symptoms were that it would not start, gray screen, Apple and a Bar.

Tried all of the known answers:

Tried Option in Target disk mode from a second iMac, nothing

started in D: nothing

Reset the PRAM, OPT-CMD-P-R, got second tone

Tried all USB ports to verify that keyboard was working

Removed the screen, blew out the computer,  then pulled and reseated the RAM

Target disk mode - no, bar and Apple

C - white screen only

D - Hard Drive clicking, Hardware test came up, no trouble found

suspected that the HD may be full at this point. Hard drive seemed to stop making noise after trying to boot, still did not start

Tried starting from CD, nothing, bar and apple present

Target mode again, nothing

Option key on startup, HD and CD showed, tried starting with CD, locked up

Did the same process but tried starting from HD, locked up

Reset PRAM - didn't work

Pulled the Hard Drive out of the iMac and installed it into a slot on my Mac Pro

8 partitions showing on the completely full hard disk, ran disk utilities but it would work. Ran Drive Genius and got an error on all of them

Ran first aid again and it appeared to work

tried starting in Safe Mode(Shift/start) - nothing

CMD-S, single user mode, yes it came up, didn't know what to do at this point

Cmd-SHIFT-V, safe mode plus verbose mode, nothing

Created a restore image of OS X 10.6 Snow leopard on a thumb drive, Option start and got nothing

CMD -S again entered fsck -fy a dozen times, no luck

Tried resetting the PRAM again, nothing

Tried deleting multiple APS in Single user mode, no work!

Reset SMC

tried the some of the above steps multiple times

after this point I stopped keeping notes.

Took the machine apart, installed a new hard drive and tried installing a new OS, no work

Took out the CD, Hard Drive, power supply, mother board, lower right cooling fan, blew out a lot of dust around the vents and installed a new PRAM battery(button)

Was able to hook up my 2007 iMac and start the 2009 iMac(problem) in Target mode. After a couple of tries was able to get the OS installed on the problem machine from my 2007 iMac. Still would not start on its own.

I was able to start the problem mac using Option start with my 2009 Mac in Target disk mode. My iMac screen now showed up on the problem iMac

Still would not start on its own

I was also able to start up my iMac using the Option startup with the problem iMac in Target disk mode. Ran disk utilities and verified disk was ok,

'''CURRENT SITUATION'''

OS on the iMac is installed and it works on a separate iMac using Target disk mode on the problem iMac and starting with Option on the 2009 iMac

On startup the problem iMac still displays a white screen and doesn't start.

If my mother board wasn't working, I would not have been able to start the computer from another computer in Target Disk Mode

If My graphics card wasn't working, I shouldn't see the Target Disk Mode icon?

The HD has been verified on a 2007 iMac and a 2009 Mac Pro and it has a fresh install of OS X 10.5 Leopard

'''I am out of answers....anyone that could help me???'''

기기:

iMac Intel 21.5" EMC 2308

현황:

open