99Power Supply001 - STARTq Power off the system unit.q Check the power cord for continuity. Replace if necessary.q Check for the correct line voltage from the power outlet,and verify that the voltage selector switch is set to thecorrect voltage.q Power on the system unit.002 - DOES THE POWER SUPPLY FAN RUN? (YES, GOTO STEP 003. NO, GO TO STEP 004)003 - DOES THE SYSTEM FAIL TO SHUT OFF WHEN THEON/OFF SWITCH IS PRESSED? (YES, READAHEAD. NO, GO TO STEP 005)q You might have a damaged on/off switch cable assembly.q Try holding down the Power button for 4 sec’s. If thisworks then you can change this setting in the BIOS powermanagement settings.q Disconnect the on/off switch cable assembly connectorfrom the power supply connector and take an ohmreading.q Go to step 007.004 -q Disconnect the power cord from the back of the systemunit.q Disconnect all power and switch cable connectors from thesystem board and the power supply.q Disconnect the power connectors to all drives.q Connect the power connector to system board as a powerload for driving up power supply.q Reconnect the power cord.005 - DOES THE POWER SUPPLY FAN RUN? (YES,READ AHEAD. NO, GO TO STEP 009)q With the system powered on and the power supply fanrunning, check the voltages of the power supplyconnectors for the system board and all drive connectors,as shown in the following figures.
