Apple Macbook Pro Aluminum 13-Inch Black Laptop Keyb Technical Guide - Page 32

2010-06-15 3. Reseat customer memory Yes and/or swap in known- good memory to isolate bad memory and replace defective parts. No 4. Hold the Alt (Option) key Yes during startup and verify there is a bootable hard drive shown in Startup Manager. Choose customer hard drive. Does No start up from this drive work? 5. Insert product OS install disc Yes in optical drive. Install disc is bootable and should be present in Startup Manager. Can system start up from OS No install disc? 6. Boot from a known-good Yes bootable copy of product OS on a USB drive or network server to start up and verify internal mass storage devices are available using System No Profiler and Disk Utility. 7. Troubleshoot optical drive Yes and optical drive cable with cable reseat and known- good part substitutions. Is there a defective optical drive component to replace? No Customer memory defective X02 and replaced. Continue to verify startup process. Go to step 4 Should known-good memory M07 fail in one or more slots, replace logic board. System starting up from customer hard drive. Startup issue resolved Customer hard drive not present or does not start up from this drive. Continue to find bootable device. Go to step 5 Starts up from optical drive customer hard drive not yet bootable, go to step 8 Computer has no internal bootable devices. Test external startup devices, go to step 6 System started up from external device and reports data regarding internal SATA devices. Go to step 7 No startup devices available. M02 Replace logic board Cable reseat solved issue. Continue to verify hard drive issues, go to step 8 Defective optical drive cable X03 found and replaced. Continue to verify hard drive issues, go to step 8 Defective optical drive found J03 and replaced. Continue to verify hard drive issues, go to step 8 Replace logic board M19 MacBook (13-inch, Aluminum, Late 2008) Symptom Charts - Startup and Power Issues 32