bolidde

Q: Power Mac G5 pomme grise et ventilateurs à fond

Bonjour,

 

J'ai un Power Mac G5 d'octobre 2004, 2 x 2Gh.

 

Quand je l'allume il reste sur écran pomme grise et après quelques minutes les ventilos se mettent à tourner

comme des fous.

J'ai essayer

- mode verbose marche pas

- mode single user marche pas

- vider la pram

- il ne veut pas démarrer sur le cd d'origine

- il démarre sur le cd hardware test matériel OK

- j'ai changer la pile de la carte graphique

- tester les barettes mémoires

 

Voilà, es-ce que quelqu'un à une idée à me proposer ?

 

D'avance merci !

bolidde

Mac Pro, Mac OS X (10.4.11)

Posted on Apr 7, 2014 4:27 AM

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Q: Power Mac G5 pomme grise et ventilateurs à fond

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  • Helpful answers

  • by rccharles,

    rccharles rccharles Apr 7, 2014 10:50 AM in response to bolidde
    Level 6 (8,486 points)
    Classic Mac OS
    Apr 7, 2014 10:50 AM in response to bolidde

    I do not know why the fans are running like crazy nor do I know why you could not boot with your orginal cd.

     

    What did hardware test indicate?  How were the fans when you run the hardware test?

     

    Sometimes if volumes don't appear in Startup Manager (what you get when you hold down the Option key at startup), you need to reset the Mac's PRAM, NVRAM, and Open Firmware. Shut down the Mac, then power it up, and before the screen lights up, quickly hold down the Command, Option, P, and R keys, until the Mac has chimed twice more after the powerup chime.

     

    Then, before the screen lights up, hold down Command-Option-O-F until the Open Firmware screen appears. Then enter these lines, pressing Return after each one:

     

    reset-nvram

    set-defaults

    reset-all

     

    "The reset-all command should restart your Mac. If so, you have successfully reset the Open Firmware settings."

    http://support.apple.com/kb/TS1812?viewlocale=en_US

     

    Should the fail...

    Try taking the battery out for 10 minutes.  Put battery back in.  Cross fingers. Power the machine back on.

     

    How to eject a cd from the internal cd drive:

    eject cd

     

    List of devices:

    devalias

     

    List of variables:

    printenv

     

     

    google translate:

     

    I have a Power Mac G5 October 2004, 2 x 2GH.

    When I turn it on it stays on gray Apple screen and after a few minutes the ventilos start to turn
    like crazy.

    I try

    - Verbose mode does not work
    - Single user mode not working
    - Empty pram
    - It does not start on the original cd
    - It starts on the cd hardware test equipment OK
    - I change the battery of the graphics card
    - Test memory barrettes

    Here, es anyone an idea to offer me?


    In advance thank you!

    bolidde
  • by bolidde,

    bolidde bolidde Apr 8, 2014 12:30 AM in response to bolidde
    Level 1 (0 points)
    Apr 8, 2014 12:30 AM in response to bolidde

    Rccharles thank you!

     

     

    I'll try it all tonight, and you want to know!

     

     

    cordially

  • by bolidde,

    bolidde bolidde Apr 8, 2014 4:05 AM in response to rccharles
    Level 1 (0 points)
    Apr 8, 2014 4:05 AM in response to rccharles

    When I boot with key option I see volumes

    Macintosh HD

    My clone disk

    and the installation cd osx

    But not start on any of these discs

  • by rccharles,

    rccharles rccharles Apr 8, 2014 1:38 PM in response to bolidde
    Level 6 (8,486 points)
    Classic Mac OS
    Apr 8, 2014 1:38 PM in response to bolidde

    This is a mystery to me. 

     

    When you run diagnostics, what does that say?  Did you run the memory testing?

     

    You sure you have the correct install disc for your machine? 

     

    Did open firmware start up and did commands like

    printenv

    work?

     

    You could pull out memory sticks and see if it was a memory problem?

  • by bolidde,

    bolidde bolidde Apr 10, 2014 7:01 AM in response to rccharles
    Level 1 (0 points)
    Apr 10, 2014 7:01 AM in response to rccharles

    The hardware test indicates that there is no hardware problems.

    Unable to control the memory test option P and R

  • by rccharles,

    rccharles rccharles Apr 10, 2014 10:15 AM in response to bolidde
    Level 6 (8,486 points)
    Classic Mac OS
    Apr 10, 2014 10:15 AM in response to bolidde

    Unable to control the memory test option P and R

     

    What do you mean by this? 

     

    You could try a linux ppc distribution like Debian or Fedora.  At least you could see that the cd booted.

     

    Could try an external firewire drive. Could try target disk mode.

     

    Robert

  • by bolidde,

    bolidde bolidde Apr 11, 2014 4:19 AM in response to rccharles
    Level 1 (0 points)
    Apr 11, 2014 4:19 AM in response to rccharles

    Hello Robert,

     

    I can not do the test because I do not know ppc linux distribution and I do not have a firewire external drive. Target modes, verbose, single user do not work or I go the wrong way: (

     

    It's weird that it starts on test drive and not on the OSX disk hardware

     

    And I think it is unfortunate that this G5 will finish at the bottom of the cellar unfortunately

    for me.

     

    In any case, thank you for your help.

     

    Vincent

  • by BDAqua,

    BDAqua BDAqua Apr 12, 2014 12:21 PM in response to bolidde
    Level 10 (123,603 points)
    Apr 12, 2014 12:21 PM in response to bolidde

    Hi Vincent, Robert asked for ideas here.

     

    Only thing I can think of is to disconnect the Hard Drive & see if Single User then boots up, or if it can then boot from the Install Disc.