Power problems – HP ProLiant DL120 G5 Server User Manual

Page 53

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Troubleshooting 53

Power problems

Power source problems (on page

53

)

Power supply problems (on page

53

)

UPS problems (on page

53

)

Power source problems

Action:

1.

Press the Power On/Standby button to be sure it is on. If the server has a Power On/Standby button

that returns to its original position after being pressed, be sure you press the switch firmly.

2.

Plug another device into the grounded power outlet to be sure the outlet works. Also, be sure the
power source meets applicable standards.

3.

Replace the power cord with a known functional power cord to be sure it is not faulty.

4.

Replace the power strip with a known functional power strip to be sure it is not faulty.

5.

Have a qualified electrician check the line voltage to be sure it meets the required specifications.

6.

Be sure the proper circuit breaker is in the On position.

Power supply problems

Action:

1.

Be sure no loose connections (on page

37

) exist.

2.

If the power supplies have LEDs, be sure they indicate that each power supply is working properly.
Refer to the server documentation. If LEDs indicate a problem with a power supply, replace the

power supply.

3.

Be sure the system has enough power, particularly if you recently added hardware, such as hard
drives. Additional power supplies may be required. Use the server documentation for product-

specific information.

UPS problems

UPS is not working properly

Action:

1.

Be sure the UPS batteries are charged to the proper level for operation. See the UPS documentation
for details.

2.

Be sure the UPS power switch is in the On position. See the UPS documentation for the location of
the switch.

3.

Be sure the UPS software is updated to the latest version. Use the Power Management software
located on the Power Management CD.

4.

Be sure the power cord is the correct type for the UPS and the country in which the server is located.
See the UPS reference guide for specifications.

5.

Be sure the line cord is connected.

6.

Be sure each circuit breaker is in the On position, or replace the fuse if needed. If this occurs
repeatedly, contact an authorized service provider.

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