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Upgrading from Tiger to Leopard — mistake?

1557 Views 13 Replies Latest reply: Nov 15, 2012 1:13 AM by Neville Hillyer RSS
mynameismyname Level 1 Level 1 (5 points)
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Oct 29, 2012 3:25 PM

I own a PowerPC G5 Dual 2 GHz (late 2005, last desktop model made before switching to the Intel chip), with 5GB RAM, which is my bread n butter, being a graphic designer.  Few months ago I decided to upgrade from Tiger 10.4.11 to Leopard 10.5.8. 


I enjoyed the few extra features Leopard was offering, but soon after I started having issues which seem to get worse and worse, programs quitting, Mac quits with what looks like Kernel Panic (but I'm told it is not really KP), always after a restart (20 minutes to a couple hours later), with red LED #7 glowing, all kinds of issues that make me suspect my Mac is signaling to me it is ready to retire.... 


I'm wondering, was upgrading to Leopard a mistake? Do others here have similar experience? Should I downgrade back to Tiger?


Thanks so much...

Mac OS X (10.5.8), 5 GB Ram
  • Klaus1 Level 8 Level 8 (43,490 points)
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    Oct 29, 2012 4:39 PM (in response to mynameismyname)

    No way could Leopard have caused that!


    When I upgraded from Tiger 10.4.11 to Leopard I was pleasantly surprised that it was even better than 10.4.11.


    You really need to get it checked before it expires on you!

  • BDAqua Level 10 Level 10 (114,825 points)
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    Oct 29, 2012 4:40 PM (in response to mynameismyname)

    I've gone back to 10.4.11 on my Quad G5, & quite enjoy the improvements.

  • Limnos Level 8 Level 8 (36,685 points)
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    Oct 30, 2012 5:53 AM (in response to mynameismyname)

    Realize that reverting to Tiger may not be simple.  Some things may have been irrevocably updated to newer versions.  Reverting usually involves wiping the internal drive, re-installing the system and then applications, then copying data files back on.  If you're lucky you made clone backup from just before you installed Leopard and haven't changed much since then and can just turn back the clock.

  • Neville Hillyer Level 4 Level 4 (1,845 points)
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    Oct 30, 2012 7:30 AM (in response to mynameismyname)

    I have used Leopard on my 733 MHz G4s for several years without any serious difficulties.


    There are no hardware incompatibilities.


    It could be a portion of RAM which Tiger rarely used.


    Unless you have a full backup of your Tiger install taken just before the upgrade it will be tedious going back.


    You could spend weeks looking for the cause of your problem, which in my experience, is often the result of taking the 'easy' upgrade option rather than a full backup, erase disk and full install.


    This my advice (I am not expecting all those here to agree with this):


    1 - Backup the whole disk to an external disk with Carbon Copy Cloner - default options are probably OK for this


    2 - Use Leopard installer DVD to erase the internal disk - splitting into 2 or more volumes can be useful - eg Tiger on one and Leopard on the other


    3 - Install Leopard without importing any data or settings (except perhaps network preferences) during the install process


    4 - Use Software update repeatedly until up to date


    5 - Copy data (not system preferences or applications) from backup


    6 - Reinstall third party software as required but check all for Leopard compatibility first


    7 - Install AppleJack (it has a RAM check option) and use about once a month with the following command:

    applejack AUTO shutdown


    8 - The above command will repair the disk and permissions and clear caches - you should see AppleJack ReadMe for use of its RAM check


    Good luck.

  • Texas Mac Man Level 8 Level 8 (44,340 points)
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    Oct 30, 2012 9:23 AM (in response to mynameismyname)

    To eliminate RAM being the problem, Look at this link: Testing RAM @ Then download & use Memtest & Ramber.


    Do you have an Apple Hardware Test disc (the AHT is on the Install/Restore DVD that came with your Mac)? Running the Apple Hardware Test in Loop Mode is an excellent troubleshooting step for finding intermittent hardware problems. It is especially useful when troubleshooting intermittent kernel panics. If Loop Mode is supported by the version of the Apple Hardware Test you are using, you run the Extended Test in Loop Mode by pressing Control-L before starting the test. Looping On should appear in the right window. Then click the Extended Test button.The test will run continuously until a problem is found. If a problem is found, the test will cease to loop, indicating the problem it found. If the test fails, be sure to write down the exact message associated with the failure.In some cases, RAM problems did not show up until nearly 40 loops, so give it a good run.


     Cheers, Tom

  • Neville Hillyer Level 4 Level 4 (1,845 points)
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    Oct 30, 2012 9:39 AM (in response to Texas Mac Man)

    The loop test sounds an excellent way to find intermittent RAM glitches especially if they are temperature dependent. I would certainly do this first if possible.


    I think it is worth checking that all the RAM is identical (especially CL numbers) and meets Apple's requirements for this Mac. Some Macs are happy with generic RAM (eg PC 100) but some need RAM to Apple's special timing requirements. CL problems rarely cause malfunctions but do result in lost speed.

  • Neville Hillyer Level 4 Level 4 (1,845 points)

    Don't know - let it run several hours - perhaps overnight.

  • paulpen Level 1 Level 1 (30 points)
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    Nov 14, 2012 10:57 PM (in response to mynameismyname)

    All versions of OSX have serious issues, especially on PowerPC. Apple secretly gave up on the PPC long before they actually discontinued it. If you want a really good, stable, reliable OS, use Windows XP on a Pentium 4. I used to totally be a Mac person, but since Apple stopped producing real Macs in 2006, i.e. dropped their "Think different" slogan and started making PC clones (i.e. things w/ an Intel chip), I've gotten disgusted with Apple.


    Btw, as i write this on my G4, my incredibly stable P4 running WinXP SP 3 is downloading videos and running an exhaustive phylogenetic analysis--all while its second hard drive sleeps peacefully. IMPOSSIBLE in any version of OSX.  Thanks, Apple.

    PowerMac, Mac OS X (10.4.11), G4; G5; Dual-Core iMac.
  • Neville Hillyer Level 4 Level 4 (1,845 points)
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    Nov 15, 2012 1:13 AM (in response to paulpen)

    I have very few problem with either Leopard or Tiger on my 733 MHz G4s. Clearly these G4s are not as fast as my quad 3 GHz Intel based Ubuntu box but they are adequate for most of my modest requirements. I still use the G4s more than my Intel box but I will eventually move away from expensive hardware and OSs I have to pay for.


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