Fix Slow iMac Annoyed By Spinning Beachball & Long Boot Time

My wonderful iMac 8,1 (2008) is a “long life” machine able to last more than 10 years, but it has an annoying weakness : the frequent spinning “Beachball” (known as the infamous “SBBOD” : Spinning Beach Ball Of Death) which slows down or freezes the computer.

Fret not ! Below is a very simple trick to fix the problem.

Note: to get the “Force Quit Application” Screen: press (<Command> + <Option> + <Esc>) 3 keys simultaneously.

Additional Info: If the above trick doesn’t fix the turning beachball problem, most likely you also face another related problem : slow booting at startup.

This can be fixed below: using command line tool “fsck” to repair the hard disk:

1. Restart iMac

2. Press and hold both <Command> <S> keys until see a black screen with white letters. Then release the keys.

3. Wait till the prompt “root #” at the end of white letters scrolling down the screen (take about few mins): type

/sbin/fsck -fy

If the repair sucessfully, the screen should be shown with last message:

** The volume Macintosh HD was repaired successfully **

then at <root #> prompt, type :


Hit RETURN key. The iMac should now boot up at normal speed. Congrats !

If the repair fails: (example below)

then repeat “fsck” tool 1 or 2 times until repair successfully.

Health-Check: Disk Utility’s “First Aid”

Other Tip to kill Spinning Beachball: Update dyld (need sudo Admin password)

iMac (2008) still usable today (2018) :

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