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Troubleshooting Symptom Charts/ Startup - 39
Startup
System is completely
dead (no fan
movement and power-
on button is not lit)
1 Verify the power outlet is good.
2 Replace the power cord.
3 Make sure the voltage switch on the back of the power supply
is set to the correct voltage.
4 Check for trickle voltage on the power supply connector.
Refer to “Power Supply Verification” in this chapter. If
verification fails, replace the power supply.
5 Disconnect external devices, including the monitor, and start
up the computer.
6 Remove internal cards and start up the computer.
7 Disconnect internal hard drives from the logic board and
start up the computer.
8 Check the modem connector (J27). If the connector has any
bent pins, replace the logic board.
9 Replace the logic board.