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현재 버전 게시자: Sam Goldheart ,

제목:

Can't boot on hard drive or CD/DVD - grey/gray screen of death

본문:

A few weeks ago my PowerPC G5 Dual Processor Early 2005 running Leopard OS X froze while the screen saver was running. I hard-powered-off the computer --> held down power button for ~10 seconds. When I tried to start up again, I got the "gray/grey screen of death" with the Apple logo. The screen hung there and then fans starting ramping up to full speed with no sign off boot up. I know others have posted similar issues, but I wanted to start a new thread.
A few weeks ago my PowerPC G5 Dual Processor Early 2005 running Leopard OS X froze while the screen saver was running. I hard-powered-off the computer --> held down power button for ~10 seconds. When I tried to start up again, I got the "gray/grey screen of death" with the Apple logo. The screen hung there and then fans starting ramping up to full speed with no sign off boot up. I know others have posted similar issues, but I wanted to start a new thread.
 
'''Basic Specs:'''
 
PowerPC G5 Dual 2.5 Hz (?) Processors
 
4 Gb memory (recently upgraded form 2 to 4) ***
 
Bought in early 2005 (I think)
 
Here's a summary of what I've tried:
 
'''DOES NOT WORK'''
 
- booting up holding down C (for drive) --> straight to kill screen
 
- booting up from original discs for G5 (from both C mode and Option mode)
 
- booting up from 10.5 Leopard disc (from both C mode and Option mode)
 
- booting up holding down Option-Comman-P-R --> straight to kill screen
 
'''DOES WORK'''
 
- connecting to secondary computer using target mode (holding down T) - I can see both of my hard drives
 
- booting up holding down Option - I can select either my main drive (secondary is not present there but there is no OS on it) or CD/DVD in slot
 
- booting from Apple Hardware Test (AHT) disk from Option menu
 
-- I ran disk checks, had errors. I ran Disk Warrior from secondary computer in target mode and repaired the drive, running the AHT test again shows no errors
 
- ran disk repair from secondary computer to fix errors (using disk utility and disc warrior)
 
'''OTHER THINGS I'VE DONE'''
 
- replaced backup battery on motherboard that was weak at only ~70 mV with fresher battery at ~3.6V
 
- held down PMU (not SMU) reset button for 30 seconds
 
- (main fans were cleaned a few weeks before issue)
 
- two weeks before issue I installed more memory (from 2 Gb to 4 Gb with two new 1 Gb cards)
 
- backed up data - so I can delete drives if needed
 
'''THOUGHTS'''
 
- I'm concerned that under CPU it shows 158950.77 GHz - shouldn't it be showing two CPU?
 
- the drives look healthy when looking at them in target mode
 
- issue is occurring between power up and drive selection (since CD/DVD is also not viewable)
 
- maybe the new memory caused local over heating to the motherboard?
 
- I may be able to replace the heat sink, but the spare computer I have access to has different looking hardware. It's probably a different model of the G5. My computer has one metal case cover and the extra one has a split case cover.
 
'''NEXT STEP'''
 
- I need to back up secondary drive fully first
 
- pull out new memory sticks
 
- pull out all memory except originals
 
- pull out secondary drive
 
'''LAST RESORT'''
 
- buy external case for drives and cry about how no one will buy my dead desktop
 
-------
 
Because this is a long description, I will post updates in the comments and a final comment here:
 
(Coming Soon)

기기:

Power Mac G5 Dual Processor EarlyLate 2005
Power Mac G5 Dual Processor EarlyLate 2005

현황:

open

승인된 답변:

67237

편집 작업: originalmachead and oldturkey03 (투표 내용) ,

제목:

Can't boot on hard drive or CD/DVD - grey/gray screen of death

본문:

A few weeks ago my PowerPC G5 Dual Processor running Leopard OS X froze while the screen saver was running. I hard-powered-off  the computer --> held down power button for ~10 seconds. When I tried to start up again, I got the "gray/grey screen of death" with the Apple logo. The screen hung there and then fans starting ramping up to full speed with no sign off boot up. I know others have posted similar issues, but I wanted to start a new thread.

'''Basic Specs:'''

PowerPC G5 Dual 2.5 Hz (?) Processors

4 Gb memory (recently upgraded form 2 to 4) ***

Bought in early 2005 (I think)

Here's a summary of what I've tried:

'''DOES NOT WORK'''

- booting up holding down C (for drive) --> straight to kill screen

- booting up from original discs for G5 (from both C mode and Option mode)

- booting up from 10.5 Leopard disc (from both C mode and Option mode)

- booting up holding down Option-Comman-P-R --> straight to kill screen

'''DOES WORK'''

- connecting to secondary computer using target mode (holding down T) - I can see both of my hard drives

- booting up holding down Option - I can select either my main drive (secondary is not present there but there is no OS on it) or CD/DVD in slot

- booting from Apple Hardware Test (AHT) disk from Option menu

-- I ran disk checks, had errors. I ran Disk Warrior from secondary computer in target mode and repaired the drive, running the AHT test again shows no errors

- ran disk repair from secondary computer to fix errors (using disk utility and disc warrior)

'''OTHER THINGS I'VE DONE'''

- replaced backup battery on motherboard that was weak at only ~70 mV with fresher battery at ~3.6V

- held down PMU (not SMU) reset button for 30 seconds

- (main fans were cleaned a few weeks before issue)

- two weeks before issue I installed more memory (from 2 Gb to 4 Gb with two new 1 Gb cards)

- backed up data - so I can delete drives if needed

'''THOUGHTS'''

- I'm concerned that under CPU it shows 158950.77 GHz - shouldn't it be showing two CPU?

- the drives look healthy when looking at them in target mode

- issue is occurring between power up and drive selection (since CD/DVD is also not viewable)

- maybe the new memory caused local over heating to the motherboard?

- I may be able to replace the heat sink, but the spare computer I have access to has different looking hardware. It's probably a different model of the G5. My computer has one metal case cover and the extra one has a split case cover.

'''NEXT STEP'''

- I need to back up secondary drive fully first

- pull out new memory sticks

- pull out all memory except originals

- pull out secondary drive

'''LAST RESORT'''

- buy external case for drives and cry about how no one will buy my dead desktop

-------

Because this is a long description, I will post updates in the comments and a final comment here:

(Coming Soon)

기기:

Power Mac G5 Dual Processor Early 2005

현황:

open

승인된 답변:

67237

편집 작업: redacted ,

제목:

Can't boot on hard drive or CD/DVD - grey/gray screen of death

본문:

A few weeks ago my PowerPC G5 Dual Processor running Leopard OS X froze while the screen saver was running. I hard-powered-off the computer --> held down power button for ~10 seconds. When I tried to start up again, I got the "gray/grey screen of death" with the Apple logo. The screen hung there and then fans starting ramping up to full speed with no sign off boot up. I know others have posted similar issues, but I wanted to start a new thread.
 
Basic Specs:'''Basic Specs:'''
Basic Specs:'''Basic Specs:'''
 
PowerPC G5 Dual 2.5 Hz (?) Processors
 
4 Gb memory (recently upgraded form 2 to 4) ***
 
Bought in early 2005 (I think)
 
Here's a summary of what I've tried:
 
'''DOES NOT WORK'''
 
- booting up holding down C (for drive) --> straight to kill screen
 
- booting up from original discs for G5 (from both C mode and Option mode)
 
- booting up from 10.5 Leopard disc (from both C mode and Option mode)
 
- booting up holding down Option-Comman-P-R --> straight to kill screen
 
'''DOES WORK'''
 
- connecting to secondary computer using target mode (holding down T) - I can see both of my hard drives
 
- booting up holding down Option - I can select either my main drive (secondary is not present there but there is no OS on it) or CD/DVD in slot
 
- booting from Apple Hardware Test (AHT) disk from Option menu
 
-- I ran disk checks, had errors. I ran Disk Warrior from secondary computer in target mode and repaired the drive, running the AHT test again shows no errors
 
- ran disk repair from secondary computer to fix errors (using disk utility and disc warrior)
 
'''OTHER THINGS I'VE DONE'''
 
- replaced backup battery on motherboard that was weak at only ~70 mV with fresher battery at ~3.6V
 
- held down PMU (not SMU) reset button for 30 seconds
 
- (main fans were cleaned a few weeks before issue)
 
- two weeks before issue I installed more memory (from 2 Gb to 4 Gb with two new 1 Gb cards)
 
- backed up data - so I can delete drives if needed
 
'''THOUGHTS'''
 
- I'm concerned that under CPU it shows 158950.77 GHz - shouldn't it be showing two CPU?
 
- the drives look healthy when looking at them in target mode
 
- issue is occurring between power up and drive selection (since CD/DVD is also not viewable)
 
- maybe the new memory caused local over heating to the motherboard?
 
- I may be able to replace the heat sink, but the spare computer I have access to has different looking hardware. It's probably a different model of the G5. My computer has one metal case cover and the extra one has a split case cover.
 
'''NEXT STEP'''
 
- I need to back up secondary drive fully first
 
- pull out new memory sticks
 
- pull out all memory except originals
 
- pull out secondary drive
 
'''LAST RESORT'''
 
- buy external case for drives and cry about how no one will buy my dead desktop
 
-------
 
Because this is a long description, I will post updates in the comments and a final comment here:
 
(Coming Soon)

기기:

Power Mac G5 Dual Processor Early 2005

현황:

open

원문 게시자: redacted ,

제목:

Can't boot on hard drive or CD/DVD - grey/gray screen of death

본문:

A few weeks ago my PowerPC G5 Dual Processor running Leopard OS X froze while the screen saver was running. I hard-powered-off  the computer --> held down power button for ~10 seconds. When I tried to start up again, I got the "gray/grey screen of death" with the Apple logo. The screen hung there and then fans starting ramping up to full speed with no sign off boot up. I know others have posted similar issues, but I wanted to start a new thread.

Basic Specs:

PowerPC G5 Dual 2.5 Hz (?) Processors

4 Gb memory (recently upgraded form 2 to 4) ***

Bought in early 2005 (I think)

Here's a summary of what I've tried:

'''DOES NOT WORK'''

- booting up holding down C (for drive) --> straight to kill screen

- booting up from original discs for G5 (from both C mode and Option mode)

- booting up from 10.5 Leopard disc (from both C mode and Option mode)

- booting up holding down Option-Comman-P-R --> straight to kill screen

'''DOES WORK'''

- connecting to secondary computer using target mode (holding down T) - I can see both of my hard drives

- booting up holding down Option - I can select either my main drive (secondary is not present there but there is no OS on it) or CD/DVD in slot

- booting from Apple Hardware Test (AHT) disk from Option menu

-- I ran disk checks, had errors. I ran Disk Warrior from secondary computer in target mode and repaired the drive, running the AHT test again shows no errors

- ran disk repair from secondary computer to fix errors (using disk utility and disc warrior)

'''OTHER THINGS I'VE DONE'''

- replaced backup battery on motherboard that was weak at only ~70 mV with fresher battery at ~3.6V

- held down PMU (not SMU) reset button for 30 seconds

- (main fans were cleaned a few weeks before issue)

- two weeks before issue I installed more memory (from 2 Gb to 4 Gb with two new 1 Gb cards)

- backed up data - so I can delete drives if needed

'''THOUGHTS'''

- I'm concerned that under CPU it shows 158950.77 GHz - shouldn't it be showing two CPU?

- the drives look healthy when looking at them in target mode

- issue is occurring between power up and drive selection (since CD/DVD is also not viewable)

- maybe the new memory caused local over heating to the motherboard?

- I may be able to replace the heat sink, but the spare computer I have access to has different looking hardware. It's probably a different model of the G5. My computer has one metal case cover and the extra one has a split case cover.

'''NEXT STEP'''

- I need to back up secondary drive fully first

- pull out new memory sticks

- pull out all memory except originals

- pull out secondary drive

'''LAST RESORT'''

- buy external case for drives and cry about how no one will buy my dead desktop

-------

Because this is a long description, I will post updates in the comments and a final comment here:

(Coming Soon)

기기:

Power Mac G5 Dual Processor Early 2005

현황:

open