HELP! Mac will not start unless I hold the on button for 10 seconds!

[majordude]

I have a MBP and it started going nuts the other day.

If it is running and I reboot it (from insides OSX) it will reboot.

If I power off and try to turn it on by pressing the button it comes on for a second (at best) and goes right back off. The only way it will boot is if I press AND HOLD the on button until it beeeeeeps and then it will boot up (rather slowly). Once it is on it appears to work fine.

Any thoughts?

 

[ctshu2002]

I have a similar problem, and the Apple disucssions boards are loaded with some of the same problems. If you MBP won't turn on when you first press the on button, try plugging it in sometimes fixes the problem.

The need to press and held the button, even when plugged in, I have found was due to the power button itself. My power button is actually slightly indented to the left and raised to the right, and now no longer slightly inset to the right speaker. My #6 key is also tilted and either sticks or doesn't work.

Combined with the sudden shutdown issues, I think it's time for the Genius bar for repairs, but my nearest one is 45 minutes plus with the highway construction and road shifting.

MBP 2.1 C2D 2.3GHz OS X 10.5.4

 

[toolbox]

YOu could try PRAM and SMC resets?

 

[majordude]

...try plugging it in sometimes fixes the problem.

It IS plugged in!

You could try PRAM and SMC resets?

How do I do that?

 

[toolbox]

To reset the PRAM

Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.

To reset the SMC ( INTEL ONLY)

Resetting the SMC can resolve some computer issues such as not starting up, not displaying video, sleep issues, fan noise issues, and so forth. If your computer still exhibits these types of issues after you've restarted the computer, try resetting the SMC. To reset the SMC on an iMac (Early 2006), iMac (Mid 2006), iMac (Late 2006), or Mac mini (Early 2006):

From the Apple menu, choose Shut Down (or if the computer is not responding, hold the power button until it turns off).
Unplug all cables from the computer, including the power cord and any display cables.
Wait at least 15 seconds.
Plug the power cord back in, making sure the power button is not being pressed at the time. Then reconnect your keyboard and mouse to the computer.
Press the power button on the back to start up your computer.
The iMac (Early 2006) and later models do not have a button on the main logic board for resetting the SMC, which eliminates the need to remove the computer's cover to reset it (as required for some earlier models).

 

[jaikob]

In his case, he would need to remove the power cable and battery for 15 seconds.

 

[majordude]

In his case, he would need to remove the power cable and battery for 15 seconds.

Hey! I think it worked! Started up without problems once I removed the battery and power for a minute or so. Strange.

 

[SnowLeopard2008]

I think you just had a slight little mishap with the SMC chip on the logic board. Try the SMC and PRAM resets as those are standard and more permanent than removing batteries.

 

[majordude]

I think you just had a slight little mishap with the SMC chip on the logic board. Try the SMC and PRAM resets as those are standard and more permanent than removing batteries.

I thought that what I did WAS an SMC reset!

 

[SnowLeopard2008]

did it fix the problem or ... ?

 

[wchua24]

thanks for sharing . it had work for me..thanks again..

 

[majordude]

did it fix the problem or ... ?

Looks like it did... but I remain wary unless it works for a week or so.