Question about Apple Mac Pro Desktop Computer Workstation (Early 2009) (Z0G100026) Mac Desktop

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Spinning rainbow wheel and crunching

The spinning wheel and crunching will last for long periods of time which is annoying. This only happens while on the internet. When it does stop crunching it will start again shortly after it stops. What is going on?

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  • satin85718
    satin85718 Oct 30, 2012

    Since my Mac Pro is 6 yrs old I am going to put all that I have on an external hard drive. By the comments of wonderful people whom I don't know and they don't know me but are willing to help me, thank you. I will hire someone to come out an put in a new hard drive. Thank you folks for all your help!

  • satin85718
    satin85718 Nov 15, 2012

    To the folks that gave suggestions to my problem .......... I had a tech install a new hard drive and upped the RAM. Problem is solved. Thank you so very much.



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Spining colored wheel is an indication of either damaged OSX or bad hard drive. Save your data and reinstall the OSX to check if it is just the Mac OSX problem.
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Posted on Apr 16, 2013

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The "beachball" and sounds do typically mean that your drive is failing. Your plan to back up is the right choice.

You should be able to replace the hard drive yourself. Opening the case and replacing the drive is exceedingly simple on the mac pro.

Posted on Nov 13, 2012

  • satin85718
    satin85718 Nov 13, 2012

    Thanks, Michael! I have a new hard drive and bumped up the RAM. Also upgraded from Leopard to Snow Leopard. Looks like no update for my Samsung printer. It was a cheap mono and will replace it. Thanks again!



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Posted on Jan 02, 2017

Macs R We
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SOURCE: imac periodically freezes. No recourse but to shut

This behavior is usually symptomatic of an internal drive that is failing or has failed. The pinwheel appears when the drive is unable to deliver a certain block that the CPU needs to proceed. In our shop, we would boot from a Drive Genius CD and run the Scan test on every block on the internal drive. If blocks show up as bad, the best course is to replace the drive. If no blocks show up as bad, we would run DiskWarrior on the file system to clear up any volume inconsistencies, which can also give rise to this symptom. If neither of these solves the problem, we could back up the user files to an external drive, reformat the internal drive using "erase writing zeroes," reinstall the system from scratch, then replace the user files.

Posted on Nov 28, 2009

  • 739 Answers

SOURCE: At login I get the rainbow wheel; i eventually get

This seems to happening a lot at the moment!
From experience it can be a number of things, the worst being a failing hard-drive These imacs are now at least 6 years old and unfortunately HDs don't last forever anymore.
Try starting up from your install Cd and run the disk first-aid found in the utilities menu. Does it fix anything? does the Mac now start up properly. Also while you are in the utility, look to see how much free space is left on the HD. You should have at least 10% of the HD's total capacity free. if not then the system has to work overtime and that invariably invokes the beach-ball.
If the utilities found nothing wrong and you do have plenty of free space then the next thing is to do an "Archive & Install"
This will reinstall the system software which may have become corrupted. The down side is that you will have to run all the updates that you already had done all over again.
You have got everything backed up haven't you?

Posted on May 04, 2010

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