HP ProLiant DL140, User Manual

Page: 43 / 107

Troubleshooting 43
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. Refer
to the UPS documentation for details.
2. Be sure the UPS power switch is in the On position. Refer to 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 correct power cord is the correct type for the UPS and the
country in which the server is located. Refer to 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.
7. Check the UPS LEDs to be sure a battery or site wiring problem has not
occurred. Refer to the UPS documentation.
8. If the UPS sleep mode is initiated, disable sleep mode for proper operation.
The UPS sleep mode can be turned off through the configuration mode on
the front panel.
9. Change the battery to be sure damage was not caused by excessive heat,
particularly if a recent air conditioning outage has occurred.
NOTE: The optimal operating temperature for UPS batteries is 25°C
(77°F). For approximately every 8°C to 10°C (16°F to 18°F) average
increase in ambient temperature above the optimal temperature, battery
life is reduced by 50 percent.