Troubleshooting power supplies, Troubleshooting system cooling problems – Dell PowerEdge 1750 User Manual
Page 39
l
System Setup program loses system configuration information.
l
System date and time do not remain current.
Action
1.
Re-enter the time and date through the System Setup program. See "Using the System Setup Program" in your User's Guide.
2.
Turn off the system and disconnect it from the electrical outlet for at least one hour.
3.
Reconnect the system to the electrical outlet and turn on the system.
4.
Enter the System Setup program.
If the date and time are not correct in the System Setup program, replace the battery. See "
Replacing the System Battery
" in "Installing System
Options."
If the problem is not resolved by replacing the battery, see "
Getting Help
."
Troubleshooting Power Supplies
Problem
l
System-status indicators are amber.
l
Power-supply fault indicators are amber.
Action
1.
Run the appropriate online diagnostics test. See "
Using Server Administrator Diagnostics
" in "Running the System Diagnostics."
2.
Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
3.
Open the system. See "
4.
Locate the faulty power supply.
The power supply's fault indicator is lit. See
Table 2
-4
in "Indicators, Messages, and Codes."
5.
Ensure that the power supply is properly installed by removing and reinstalling it. See "
Removing and Replacing Power Supplies
" in "Installing System
Options."
6.
If the problem is resolved, close the system covers. See "
If the problem persists, remove the faulty power supply. See "
Removing a Power Supply
" in "Installing System Options."
7.
Install a new power supply. See "
Installing a Power Supply
" in "Installing System Options."
If the problem persists, see "
Getting Help
."
Troubleshooting System Cooling Problems
Problem
l
Systems management software issues a fan-related error message.
Action
Ensure that none of the following conditions exist:
NOTE:
Some software may cause the system time to speed up or slow down. If the system seems to operate normally except for the time kept in the
System Setup program, the problem may be caused by software rather than by a defective battery.
NOTE:
If the system is turned off for long periods of time (for weeks or months), the NVRAM may lose its system configuration information. This situation
is caused by a defective battery.
CAUTION:
Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. See
your System Information Guide for complete information about safety precautions, working inside the computer, and protecting against
electrostatic discharge.
NOTICE:
The power supplies are hot-pluggable. One power supply must be installed for the system to operate. The system is in the redundant mode
when two power supplies are installed. Remove and install only one power supply at a time in a system that is powered on.
NOTE:
After installing a power supply, allow several seconds for the system to recognize the power supply and to determine if it is working
properly. The power indicator turns green to signify that the power supply is functioning properly. See
Table 2
-4
in "Indicators, Messages, and
Codes."