hardware testing without the apple cd

Discussion in 'Mac Basics and Help' started by QCassidy352, Oct 11, 2005.

  1. QCassidy352 macrumors G3

    QCassidy352

    Joined:
    Mar 20, 2003
    Location:
    Bay Area
    #1
    I have a computer that is having hardware problems that I would like to diagnose, but I don't have the hardware test cd that came with the computer because I'm not the original owner. Is there any other way to run a similar kind of test on hardware components?
     
  2. MacsRgr8 macrumors 604

    MacsRgr8

    Joined:
    Sep 8, 2002
    Location:
    The Netherlands
    #2
    Can't help you fully, but if I get into diagnosing hardware problems I do the following:

    Remove all 3rd party hardware devices (PCI cards, ext. FireWire and USB stuff) etc. Also remove 3rd party RAM...
    (Re)Boot the Mac in OpenFirmware (press and hold < COMMAND >, < OPTION >, < O >, < F >).
    Type:
    - reset-nvram < ENTER >
    - set-defaults < ENTER >
    - reset-all < ENTER > (will now reboot automatically)

    Start with < SHIFT > pressed (safe-boot)

    Download and use Rember (GUI - memtest), and do the full test (will take some time, depends on how much RAM is installed).

    Also, (Re)Boot in "verbose mode" (Boot while pressing and holding < COMMAND >, < V >), and try to notice any out-of-the-ordinary messages...

    Maybe some external FW Disk with a known-good Mac OS X boot system could help you out too?

    Sorry, I don't have any links to "real" hardware test CD's, but this type of diagnoses usually helps me isolate the problem.

    Other advise (if physically possible):
    - swap the Boot disk (check to see if no problems occur in another comparible Mac)
    - Insert a new HD, and install a brand new Mac OS X
    - Avoid using ADC. Sometimes using only DVI (or VGA) instead of ADC on the grfx card can eliminate problems
    - Boot into Target Disk Mode (Re)Boot while pressing and holding < T >.
    If this does work, but normal boot does not, you can at least backup the drive (connect to another Mac using a FireWire cable), and check to see that OF still is alive, and so is the disk.
    - Grab a beer, and call it a day.

    Good luck, m8.
     
  3. iEdd macrumors 68000

    iEdd

    Joined:
    Aug 8, 2005
    Location:
    Australia
  4. MacsRgr8 macrumors 604

    MacsRgr8

    Joined:
    Sep 8, 2002
    Location:
    The Netherlands
    #4
    Good idea, but you have to buy it
     
  5. bousozoku Moderator emeritus

    Joined:
    Jun 25, 2002
    Location:
    Gone but not forgotten.
    #5
    It's worth it. It does much more than just hardward diagnostics.
     
  6. QCassidy352 thread starter macrumors G3

    QCassidy352

    Joined:
    Mar 20, 2003
    Location:
    Bay Area

Share This Page