Sometimes, not always, upon restarting my Macbook (late-2006), the chime is repeated four more times after the initial chime. It then starts up normally.
MacBook – does the MacBook sometimes ring the startup chime four more times after the initial chime
macbook prostartup
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Best Answer
Does it happen in quick succession to where you could say the the unit chimes 5 times at start up? Or does the system reboot between each chime?
If they happen in quick success I would suspect a RAM Module issue. If it is so that the system reboots each time I would lean more towards an issue with the MLB's boot ROM. Late 2006 MBP parts are getting scarce since a Apple computer can only be serviced for 5 years from DOP. Hopefully that will give you a bit of information.
Another (distant) possibility is that the OS is corrupted after trying to do a software update. That one is a bit tricker to find but best tip is to run a complete backup of the unit, re-install the OS from the DVDs that shipped with the unit and the reapply all available updates (making sure the unit is attached to power the entire time).