Manual
Table Of Contents
- HP ProLiant ML100 Series Server User Guide
- Abstract
- Notice
- Contents
- Server operations
- Server setup
- Hardware options installation
- Introduction
- Access panel
- Processor option
- Installing a processor in HP ProLiant ML150 Generation 3 and Generation 5 Servers
- Installing a processor in HP ProLiant ML110 (G2, G3, and G4) and ProLiant ML150 Generation 2 Servers
- Installing a processor in HP ProLiant ML110 Generation 5 Servers
- Installing a processor in HP ProLiant ML115 and ML115 Generation 5 Servers
- SAS or SATA hard drive options
- Hard drive LED cable option
- Removable media device options
- Memory options
- Expansion board options
- Server software and configuration utilities
- Troubleshooting
- Pre-diagnostic steps
- Troubleshooting flowcharts
- Hardware problems
- Power problems
- General hardware problems
- Internal system problems
- System open circuits and short circuits
- External device problems
- Audio problems
- Printer problems
- Mouse and keyboard problems
- Modem problems
- No dial tone exists
- No response occurs when you type AT commands
- AT commands are not visible
- Data is displayed as garbled characters after the connection is established
- Modem does not answer an incoming call
- Modem does not connect to another modem
- Modem disconnects while online
- AT command initialization string is not working
- Connection errors are occurring
- You are unable to connect to an online subscription service
- You are unable to connect at 56 Kbps
- Network controller problems
- Software problems
- Firmware maintenance
- Battery replacement
- Regulatory compliance notices
- Regulatory compliance identification numbers
- Federal Communications Commission notice
- Declaration of conformity for products marked with the FCC logo, United States only
- Modifications
- Cables
- Canadian notice (Avis Canadien)
- European Union regulatory notice
- Disposal of waste equipment by users in private households in the European Union
- Japanese notice
- BSMI notice
- Korean notice
- Laser compliance
- Battery replacement notice
- Taiwan battery recycling notice
- Power cord statement for Japan
- Acoustics statement for Germany (Geräuschemission)
- Electrostatic discharge
- Support and other resources
- Acronyms and abbreviations
- Documentation feedback
- Index

Troubleshooting 73
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.
7. Check the UPS LEDs to be sure a battery or site wiring problem has not occurred. See 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.
Low battery warning is displayed
Action:
1. Plug the UPS into an AC grounded outlet for at least 24 hours to charge the batteries, and then test the
batteries. Replace the batteries if necessary.
2. Be sure the alarm is set appropriately by changing the amount of time given before a low battery
warning. Refer to the UPS documentation for instructions.
One or more LEDs on the UPS is red
Action: Refer to the UPS documentation for instructions regarding the specific LED to determine the cause of
the error.
General hardware problems
Problems with new hardware
Action:
1. Refer to the server documentation to be sure the hardware being installed is a supported option on the
server. Remove unsupported hardware.
2. Refer to the release notes included with the hardware to be sure the problem is not caused by a last
minute change to the hardware release. If no documentation is available, refer to the HP support
website (http://www.hp.com/support).
3. Be sure the new hardware is installed properly. Refer to the device, server, and operating system
documentation to be sure all requirements are met.
Common problems include:
o Incomplete population of a memory bank
o Installation of a processor without a corresponding PPM
o Installation of a SCSI device without termination or without proper ID settings
o Setting of an IDE device to Primary/Secondary when the other device is set to CS