Power Mac G4 FW800 system hangs every 30 to 45 mins.

Hi everyone,
I have a power mac G4 dual 1.25 FW800 machine running OSX 10.4.11. I have installed both Digital Performer 5.13 and Logic Pro 8.02 on this machine. I have also installed a PCI USB card by Allergo. This card is used mainly for all the iloks & dongles for my softwares.
When i launch Digital Performer, an error msg saying that 'Midi system has crashed, please quit any application running midi' appears. DP went into normal application after i have click 'OK'. But 30 to 45 mins thru the operation, the whole system crashed with no kernel msg. I have to do a forced shut down. I did all the checks with disk utility as well as Tech Tool Pro and they found no error (even when it was an abnormal shut down).
At first i thought it was the problem with the 'Midi system'. But the system also hangs when i'm in other applications like iTunes etc.
It really bugs me about what is going on with the machine as no other has the same problem as mine when i try to search for answers in the discussion forum.
Hope that someone can help me solve this problem.
Thank you vey much.

Hi-
Welcome to Discussions!
It really bugs me about what is going on with the machine as no other has the same problem as mine when i try to search for answers in the discussion forum.
Are you sure? How about heat? What are your CPU temperatures?
Freezes within that time frame, with the applications that you mention, and with no logs (kernel message?) sound an awful lot like overheating CPUs.

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    I also have an install disc for OS X 10.4.7 - for a friend's iMac (G5)
    When holding down "C" key at startup with the OS X 10.4.7 in the drive I get a kernel panic
    When holding down "option" key at startup, the computer shows the bootable choices as the OS X 10.4.7 in the drive AND the internal HD
    When I choose the OS X 10.4.7 in the drive I get a kernel panic
    When I choose the internal HD the startup hangs at the gray screen I mentioned above
    At this point, I don't know what else to do.  I believe the computer is still good because I can see everything on it when I put it into target disk mode; it just refuses to make it through the startup/login process.  I have read discussion threads that suggest re-installing the OS using another computer - but I don't know how to do that.  I also wondered if there was a way to tell the computer to re-install the software using the original CDs - but from the command line (in single-user mode)?
    Someone - PLEASE HELP!

    Sorry, SU Single User Mode, OF Open Firmware as these 2 where mentioned before.
    As a test, let's try disconnecting the HD & see if it booys to any mode without it attached.
    It could be the User's files or login messed up, if you want to try something a little more desperate...
    Reset OS X Password Without an OS X CD...
    http://theappleblog.com/2008/06/22/reset-os-x-password-without-an-os-x-cd/
    It'll boot like a newly setup Mac, but all your stuff should still be there once filling out the stuff.
    Except you could just use Target mode and move or rename that file.

  • Power mac G4 - Startup hangs at gray screen

    Hello all,
    I have a Power mac G4 - mirrored drive door model.  512mb of RAM; 833mghz - about 50+ gigabytes of storage remaining.
    I recently starting using this mac again, here is what happened:
    Power mac G4 was running 10.2.1 - had never been updated; it also was capable of running classic os9 (even though I never used it)
    Started using machine again a few weeks ago; let "software update" install 10.2.8 update - everything worked fine
    Put computer into target disk mode to transfer files to my new macbook pro (13") - using firewire connection
    While trying to connect (migration assistant) - window froze will calculating the amount of space that the "user" on the power mac totalled - power mac appeared to be frozen
    Did a hard reset / power down of the power mac G4
    Upon restart, power mac G4 goes through all start up functions up to gray screen with apple logo (with spinning wheel) and then goes to a darker gray screen (without the logo) and spinning wheel
    Dark gray screen with spinning wheel hangs indefinitely - I've let it stay there for hours on end hoping it will resolve but it doesn't
    Here's what I have done so far:
    Placed power mac G4 into target disk mode again in conjunction with macbook proI can see all the files on the power mac G4 (and have already copied them to the macbook pro) - so I don't think the hard drive is damaged
    Disconnected all non-apple peripheral devices - only had a card installed in the back - but took that out - issue persisted (did not replace card in back)
    Removed one non-apple RAM stick - issue persisted
    Replaced non-apple RAM stick and removed apple RAM stick - issue persisted
    Reset PRAM
    Started computer in single-user modeused fsck and tried to have system check/fix issue; no matter how many times I re-run the command to repair it never comes back with a message saying no issues found - instead it keeps returning with a message saying that the issue was repaired "system modified"
    Started computer in verbose modestartup seems to hang when this appears:
    "/System/Library/CoreServices/loginwindow.app/Contents/MacOs/loginwindow: (ipc/send) invalid destination""LayState: cannot map display interlocks."
    "/System/Library/CoreServices/loginwindow.app/Contents/MacOs/loginwindow: kCGErrorFailure: CGSNewConnection""Cannot connect to server"
    "/System/Library/CoreServices/loginwindow.app/Contents/MacOs/loginwindow: kCGErrorInvalidConnection""Connection called with invalid connection"
    Tried re-installing with system discsThe only discs I received with the power mac G4 when I purchased are orange and say "SSW version 8.6" on it" ("iMac Software Restore" and "iMac Software Install")
    Computer does not respond when holding down "C" key at startup with either disc in the drive
    When holding down "option" key at startup, the computer shows the bootable choices as ONLY the internal HD - not either of the CDs I mentioned above; I wonder if it no longer recognizes the original CDs because I updated to 10.2.8 from 10.2.1 before the issue?I also have an install disc for OS X 10.4.7 - for a friend's iMac (G5)
    When holding down "C" key at startup with the OS X 10.4.7 in the drive I get a kernel panic
    When holding down "option" key at startup, the computer shows the bootable choices as the OS X 10.4.7 in the drive AND the internal HD
    When I choose the OS X 10.4.7 in the drive I get a kernel panic
    When I choose the internal HD the startup hangs at the gray screen I mentioned above
    At this point, I don't know what else to do.  I believe the computer is still good because I can see everything on it when I put it into target disk mode; it just refuses to make it through the startup/login process.  I have read discussion threads that suggest re-installing the OS using another computer - but I don't know how to do that.  I also wondered if there was a way to tell the computer to re-install the software using the original CDs - but from the command line (in single-user mode)?
    Someone - PLEASE HELP!

    Sorry, SU Single User Mode, OF Open Firmware as these 2 where mentioned before.
    As a test, let's try disconnecting the HD & see if it booys to any mode without it attached.
    It could be the User's files or login messed up, if you want to try something a little more desperate...
    Reset OS X Password Without an OS X CD...
    http://theappleblog.com/2008/06/22/reset-os-x-password-without-an-os-x-cd/
    It'll boot like a newly setup Mac, but all your stuff should still be there once filling out the stuff.
    Except you could just use Target mode and move or rename that file.

  • Mac server hangs every few days. where to look for cause?

    I have a Mac server that hangs every few days and requires a hard reboot.
    It is run headless so we have no screen feed back of what is happening when it hangs.
    It is possible that just the network communications fail. But it is in software because a reboot restores the situation everytime.
    I could use some advice on where to look for possible causes: which logs, or dumps that are produced by the system.
    Thanks

    These instructions must be carried out as an administrator.
    Launch the Console application.
    Step 1
    For this step, the title of the Console window should be All Messages. If it isn't, select
              SYSTEM LOG QUERIES ▹ All Messages
    from the log list on the left. If you don't see that list, select
              View ▹ Show Log List
    from the menu bar at the top of the screen.
    In the top right corner of the Console window, there's a search box labeled Filter. Initially the words "String Matching" are shown in that box. Enter "BOOT_TIME" (without the quotes.)
    Each message in the log begins with the date and time when it was entered. Note the timestamps of the BOOT_TIME log messages, which refer to the times when the system was started. Now clear the search box and scroll back in the log to the last boot time when you had the problem. Select the messages logged before the boot, during the time something abnormal was happening. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
    For example, if the system was unresponsive or was failing to shut down for three minutes before you forced a restart, post the messages timestamped within three minutes before the boot time, not after. Please include the BOOT_TIME message at the end of the log extract—not at the beginning.
    If there are long runs of repeated messages, please post only one example of each. Don’t post many repetitions of the same message.
    ☞ When posting a log extract, be selective. A few dozen lines are almost always more than enough.
    ☞ Some private information, such as your name, may appear in the log. Anonymize before posting.
    Please don't indiscriminately dump thousands of lines from the log into this discussion.
    Please don't post screenshots of log messages—post the text.
    Step 2
    In the Console window, select
              DIAGNOSTIC AND USAGE INFORMATION ▹ System Diagnostic Reports
    (not Diagnostic and Usage Messages) from the log list on the left. If you don't see that list, select
              View ▹ Show Log List
    from the menu bar.
    There is a disclosure triangle to the left of the list item. If the triangle is pointing to the right, click it so that it points down. You'll see a list of reports. A crash report has a name that begins with the name of the crashed process and ends in ".crash". A panic report has a name that begins with "Kernel" and ends in ".panic". A shutdown stall report has a name that ends in ".shutdownstall". Select the most recent of each, if any. The contents of the report will appear on the right. Use copy and paste to post the entire contents—the text, not a screenshot. It's possible that none of these reports exists.
    I know the report is long, maybe several hundred lines. Please post all of it anyway.
    ☞ If you don't see any reports listed, but you know there was a crash or panic, you may have chosen Diagnostic and Usage Messages from the log list. Choose DIAGNOSTIC AND USAGE INFORMATION instead.
    In the interest of privacy, I suggest that, before posting, you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header of the report, if it’s present (it may not be.)
    ☞ Please don’t post other kinds of diagnostic report—they're very long and rarely helpful.

  • I am using Xcode 5  on Mac Book with configuration Memory  5 GB 1067 MHz DDR3  and Processor  2.4 GHz Intel Core 2 Duo. It is getting hanged every time  whenever i work on Storyboard.  As my storyboard consists of 25 scenes. Please help I m suffering.

    I am using Xcode 5  on Mac Book with configuration Memory  5 GB 1067 MHz DDR3  and Processor  2.4 GHz Intel Core 2 Duo. It  hangs every time  whenever i work on Storyboard and even on clicking on any of the controller it takes time to open.  As my storyboard consists of 25 scenes. I searched a lot but did not get any results . I have upgraded my xcode to xcode 5.0.2  which is bug free as compare to xcode 5. Please help I m struggling with this problem a lot.

    iTunes for Mac
    http://support.apple.com/en-us/HT201693
    http://www.apple.com/itunes/download/
    Was it installed before? Does it show up in Software Update?
    Do other updates show up there (realizing that Lion is not getting all the updates anymore as it is no longer being supported).
    Apple Downloads
    - Always a place to manual download.
    MacBook Pro
    Mac OS X Lion System Communities

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