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Power Supply
If the power-on indicator is not on but the power supply fan
is not turning, check the power cord for continuity and
correct installation.
If the power cord is not the problem, either the power
supply is defective, or another component is defective
causing the power supply to cut off. To verify the power
supply is operating correctly, do the following:
1. Power-off the computer and disconnect the
SelectaDock Docking System power cord.
2. Remove all internal devices, external devices, and the
computer from the SelectaDock Docking System.
3. Undock the Base Model.
4. Remove the half-height bay frame (see “1050
Half-Height Bay Frame” on page 39).
5. Remove connectors 1, 2, 3, 4, and 5 from
the each device, tray, or card.
1
2
3
4
5
6. Short-circuit 1 and 3, 2 and 8 of the connector 5.
Then check the power supply voltages on each
connector. If the voltage is not correct, replace the
power supply.
If any of the voltages is not correct, replace the power
supply. If replacing the power supply does not correct the
problem, replace the main card.
6 IBM Mobile Systems HMM