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Loud Sound MacBook won't turn on

Every few days I go to turn on my new MacBook and it won't turn on and then it makes this loud noise. Kind of like the noise from LOST when the computer is ticking down. Any one know why this happens???????

MacBook, Mac OS X (10.5.2)

Posted on Mar 10, 2008 10:08 AM

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3 replies

Mar 10, 2008 11:04 AM in response to Sharp1211

Every few days I go to turn on my new MacBook and it won't turn on and then it makes this loud noise.


Welcome to Discussions, Sharp1211!

It isn't clear what you mean. Just how "new" is your MacBook?

Is your question about the loud sound? Or is it about the fact that you can not use your MacBook due to the fact it will not "turn on" as you put it? If it will not power on, you should return it to the seller.

If your question is about the "loud sound" - do you realize that all Macs have a "startup chime," or are you referring to some additional "loud sound?" If there is some additional loud sound, does that occur before or after the startup chime?

FWIW, the startup chime is a good thing - a diagnostic telling you that your Mac's internal components are capable of starting up.

Message was edited by: myhighway

Mar 10, 2008 2:40 PM in response to myhighway

well the computer will work but I'll go to turn it on and its not the start up chime I've had a mac for a few years and this is a new laptop but its like a loud piercing noise. I hit the power button and it makes the loud noise and it will keep beeping every few seconds until I hold down the power button and it turns off. I then can hit the power button and the computer starts right up. This will happen every few days or at least once a week I thought maybe its telling me the battery is running low but its not so I'm stumped.

Mar 11, 2008 8:58 AM in response to Sharp1211

If it made that noise after purchase, it should have been returned. Now it probably needs warranty service, except for a single possibility - please continue reading:)

You haven't mentioned any results from running the Apple Hardware Test, nor have you indicated any report in System Profiler's "Diagnostics" so I'm not sure how anyone can help without more detailed information.

However, I can make an educated guess that you have an older model MacBook, perhaps the 2.16GHz model that was produced prior to November (you can tell by the serial number, or by the processor speed), and you have downloaded the EFI firmware update but not installed it because you continually shut down your machine when it tries to install the firmware update. Unlike software updates, firmware updates do not install as part of the downloading process.

Information from the main MacBook Support page:
About firmware updates for Intel-based Macs

You can check your Boot ROM Version reported in the Hardware Overview of System Profiler against the version (probably MB21.00A5.B07) that should be showing after the firmware update has installed.

Firmware updates for Intel-based Macs

Message was edited by: myhighway

Loud Sound MacBook won't turn on

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