Power Supply



Power Supply

If the power-on indicator is not on, the power-supply fan is not running, or the computer will not power-off, do the following.

Check/Verify FRU/Action
1. Verify that the voltage-selector
switch is set for the correct
voltage.		 Correct the voltage-selector switch setting.
2. Check the following for proper
installation.
Power Cord
On/Off Switch connector
On/Off Switch Power Supply connector
System Board Power Supply connectors		 Reseat
3. Check the power cord for proper
continuity.		 Power Cord
4. Check the power-on switch
for continuity.		 Power-on Switch


If these are correct, check the following voltages.

System Board Connections  (P1 / P2 and P11)

NOTE: These voltages must be checked with the power supply cables connected to the system board.

If the voltages are not correct, and the power cord is good, replace the power supply.

If the voltages are correct, and the computer you are servicing has a power supply connector on the riser card, check the following riser card voltages.

Riser Card Connections  (P10)

NOTE: These voltages must be checked with the power supply cable connected to the riser card.

If the voltages are not correct, and the power cord is good, replace the power supply.

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