Troubleshooting Power Supplies; Troubleshooting System Cooling Problems - Dell PowerEdge 1750 Installation And Troubleshooting Manual

System Setup program loses system configuration information.
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System date and time do not remain current.
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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
Options."
If the problem is not resolved by replacing the battery, see
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.

Troubleshooting Power Supplies

Problem
System-status indicators are amber.
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Power-supply fault indicators are amber.
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Action
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.
1. Run the appropriate online diagnostics test. See
2. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
3. Open the system. See "Opening the System
4. Locate the faulty power supply.
The power supply's fault indicator is lit. See
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.
5. Ensure that the power supply is properly installed by removing and reinstalling it. See
Options."
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
Codes."
6. If the problem is resolved, close the system covers. See
If the problem persists, remove the faulty power supply. See
7. Install a new power supply. See
If the problem persists, see

Troubleshooting System Cooling Problems

Problem
Systems management software issues a fan-related error message.
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Action
Ensure that none of the following conditions exist:
"Getting
"Using Server Administrator
Covers."
Table 2-4 in "Indicators, Messages, and Codes."
"Closing the System
"Removing a Power
"Installing a Power Supply" in "Installing System Options."
"Getting Help."
"Replacing the System
Help."
Diagnostics" in "Running the System Diagnostics."
"Removing and Replacing Power
Covers."
Supply" in "Installing System Options."
Battery" in "Installing System
Supplies" in "Installing System
Table 2-4 in "Indicators, Messages, and