132 Chapter 4Power On IssueIf the system doesn’t power on, perform the following actions one at a time to correct the problem. Do notreplace non-defective FRUs:Computer Shuts down IntermittentlyIf the system powers off at intervals, perform the following actions one at a time to correct the problem.1. Check the power cable is properly connected to the computer and the electrical outlet.2. Remove any extension cables between the computer and the outlet.3. Remove any surge protectors between the computer and the electrical outlet. Plug the computer directlyinto a known good electrical outlet.4. Remove all external and non-essential hardware connected to the computer that are not necessary toboot the computer to the failure point.5. Remove any recently installed software.6. If the Issue is still not resolved, see “Online Support Information” on page 241.Start Check AC/Battery Power on Swap AC /Battery to try OK NG Check Daughter/B & FFC Whether OK OK Swap Daughter/B Re - plug PWR FFC OK NG Swap M/B Start Check AC/Battery Power on Swap AC /Battery to try OK NG Check Daughter/B & FFC Whether OK OK Swap Daughter/B Re - plug PWR FFC OK NG Swap M/B Start
