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モデルA1369、1.6、1.7または1.8 GHzプロセッサー、64、128、または256GBフラッシュドライブ

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chime sound comes after about a min.

Hi

I am facing a problem with my macbook air 2010 13".

The problem is the chime sound comes after like a min for pressing the power button.

I have opened the back lid and i see as soon as i press the power button the fan starts spinning.

Fan stops and starts automatically 2 times when it starts spinning the 3rd time it boots with a chime sound.

Also if the mac-book air goes to sleep it dosen't wakes up. the only way to start it back is do a SMC reset.

I have updated the EFI firmware also but not gain.

Any body has any clue what could it be.

I repair macbooks, this is the 1st time i came across this kind of a problem.

Thanks in advance.

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What OS are you running? Lots of wake from sleep issues with Mavericks.

You could have a failing boot drive. It's not listed in this sequence but as part of the startup sequence the drive permissions and Master Boot Directory is checked.... If it's self-correcting errors that may be why the chime is late.

I do not know if booting in verbose mode will show you where the time consuming process is... but it might.

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I am using Mavericks.

But i guess after getting a chime sound or in other words after the POST is done on a mac it will search for your MBR.

The issue is before it search for drive or MBR as the post is getting delayed.

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If this delay began after the change to Mavericks It could be corrupt boot ROM (supposed to be self-correcting) or maybe EFI related. I'd go to Apple Discussions and see if anyone over there has an Answer.

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Varun Gargi さん、ありがとうございました!
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