Startup Sequence
The Intel-based MacBook Pro starts up very much like the previous professional Macintosh notebook computers. If power is available to the system from the battery and/or AC power adapter, pushing the power button will boot the system and begin the boot process.
- The screen will stay dark. The sleep LED will glow solid. This will last a few seconds.
- As the system boots, a power-on self test (POST) will be performed. See POST Error Codes listed later for failure results.
- If the system is not muted, you will hear a boot beep. The backlight will turn on and the sleep LED will turn off.
- The screen will turn gray. The Apple logo will appear and then the turning gear will appear.
- The desktop pattern will show up, as well as the menu bar start populating.
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