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Troubleshooting Symptom Charts/Power - 7
Computer runs when
plugged into wall
outlet but not on
battery power
1 Reset power manager (shift-Fn-Ctrl-Pwr button).
2 Check battery shims (refer to Additional Procedures
chapter.)
3 Reseat battery to make sure battery is mating with contacts
on I/O logic board.
4 Try battery in opposite expansion bay.
5 Try known-good, firmly seated, charged battery. Repeat once.
6 Try known-good power adapter.
7 Replace charge card.
8 Replace PMU board.
9 Replace power supply card.
10 Replace I/O logic board.