Apple Macbook Pro Aluminum 13-Inch Black Laptop Keyb Technical Guide - Page 25

Starting Up in Safe Mode A Safe Boot is a special way to start Mac OS X when troubleshooting. To start up into Safe Mode (Safe Boot), 1. Make sure the computer is shut down. 2. Press the power button. 3. Immediately after you hear the startup tone, press and hold the Shift key. Note: The Shift key should be held as soon as possible after the startup tone but not before. 4. Release the Shift key when you see the screen with the gray Apple and progress indicator (looks like a spinning gear). During startup, "Safe Boot" appears on the Mac OS X startup screen. To leave Safe Mode, restart the computer normally, without holding down any keys during startup. For more information: http://www.apple.com/support HT1564-What is Safe Boot, Safe Mode? TS1884-Safe Boot take longer than normal startup Apple Service Diagnostics Run Apple Service Diagnostics to determine if any of the thermal sensors are malfunctioning. Replace any failing sensors. See chart below for correlation between error code and part. Name TC0D TC0P Th1H TN0D Th0H Ts0P TB0T TB1T TB2T TB3T Location Logic board Logic board Logic board Logic board Heatsink Trackpad flex cable Battery Battery Battery Battery 2010-06-15 MacBook (13-inch, Aluminum, Late 2008) General Troubleshooting - Apple Service Diagnostics 25