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Error Messages
If the message is not listed, see the documentation for the operating system or the program that was running when the message appeared.
next to it, click the checkmark to remove it and connect to the Internet.
Ensure that you have subscribed to an Internet service provider — Contact an Internet service provider to subscribe.
Contact your Internet service provider — Contact your Internet service provider for assistance.
Check for interrupt request conflicts — See "Resolving Software and Hardware Incompatibilities."
A filename cannot contain any of the following characters: \ / : * ? " < > | — Do not use these characters in filenames.
A required .DLL file was not found —
The program that you are trying to open is missing an essential file. To remove and then reinstall the program:
1. Click the Start button.
2. Click Control Panel.
3. Click Add or Remove Programs.
4. Select the program you want to remove.
5. Click the Change or Remove Program icon.
6. See the program documentation for installation instructions.
Alert! Card Cage Fan Failure — The PCI card cooling fan is not installed, has failed, or is not properly connected to the system board.
Ensure that an operational fan is properly installed and connected to the system board. For more information, see the Service Manual at
support.dell.com.
NOTE: ThiserrormessageappliesonlytoDellPrecision™650computers.
Alert! Chipset Heatsink Not Detected — The heat sink is not properly installed on the system board. Reseat the heat sink on the system
board. See the system board illustration for your computer (for the Dell Precision 650 computer, see "System Board Components" or for the
Dell Precision 450 computer, see "System Board Components."
Alert! Cover Was Previously Opened — The computer cover was opened. Enter system setup and reset the Chassis Intrusion option.
Alert! CPU 0 Fan Failure — The cooling fan for microprocessor 0 is not installed, has failed, or is not properly connected to the system
board. Ensure that the cooling fan is properly installed and working. Also, ensure that the microprocessor airflow shroud is properly installed.
See "Microprocessor."
Alert! CPU 1 Fan Failure — The cooling fan for microprocessor 1 is not installed, has failed, or is not properly connected to the system
board. Ensure that the cooling fan is properly installed and working. Also, ensure that the microprocessor airflow shroud is properly installed.
See "Microprocessor."
Alert! Memory Population Mismatch. DIMM Slot 1 and DIMM Slot 3 Are Disabled and Performance Will be Degraded — The memory
module connectors are not populated in matched pairs or there is a defective memory module in the computer. Ensure that memory modules
of identical size, type, speed, and number of chips are installed in memory module connectors 1 and 2 and memory modules of identical size,
type, speed, and number of chips are installed in memory module connectors 3 and 4 (if used). See "Memory."
Alert! Operating in Debug Mode. Please Populate Memory in Pairs for Normal Operation — This message appears when one memory
module is installed in memory module connector 4. This is a troubleshooting mode that allows you to isolate a defective memory module, see
"Memory Problems."
Alert! OS Install Mode Enabled — The OS Install Mode in system setup is set to On, which limits the amount of memory to 256 MB because
some operating systems will not complete installation with more than 2 GB of memory. After you have installed the operating system, enter
system setup and set the OS Install Mode to Off.
Alert! Power Supply Fan Failure — The power supply fan has failed or is blocked. Ensure that the power supply airflow vents are not
blocked.
Alert! Previous Attempts at Booting This System Have Failed at Checkpoint [nnnn ]. For Help in Resolving This Problem, Please Note
This Checkpoint and Contact Dell Technical Support — The computer failed to complete the boot routine three consecutive times for the
same error. Contact Dell and report the checkpoint code (nnnn) to the support technician.
Alert! Previous Fan Failures — The fan caused an error last time you used the computer. Ensure that nothing is blocking the airflow vents
and that all the fans are properly installed and operating correctly.
Alert! Previous Processor Thermal Failure — The microprocessor overheated the last time you used the computer. Ensure that nothing is
blocking the airflow vents and that all the fans are properly installed and operating correctly. Also, ensure that the microprocessor heat sink
is properly installed.
Alert! Previous Reboot Was Due to Voltage Regulator Failure — The VRM failed the last time you used the computer. Contact Dell for
assistance.
Alert! Previous Shutdown Due to Thermal Event — The microprocessor overheated the last time you used the computer. Ensure that
nothing is blocking the airflow vents and that all the fans are working correctly. Also, ensure that the microprocessor heat sink is properly
installed.
Alert! Previous Voltage Failure — Voltage used by the computer either exceeded or fell below acceptable thresholds. See "Power
Problems" and "System Board Problems."
Alert! Processor Cache Size Mistmatch. Install Like Processors or One Processor. System Halted! — Two processor with different cache
sizes are installed. See "Microprocessor."
Alert! Processor Speed Mismatch. Install Like Processors or One Processor. System Halted! — Two processor with different speeds are
installed. See "Microprocessor."
Alert! Processor Type Mismatch. Install Like Processors or One Processor. System Halted! — Two processor with different types are
installed. See "Microprocessor."
Alert! System Battery Voltage is Low — The computer battery is providing inadequate voltage. See "Battery."
Alert! Unsupported High Power AGP Pro Video Adapter Detected. System Halted! — A high-power AGP Pro110 video adatper is installed.
Replace the AGP Pro110 video adapter with an AGP Pro50 adapter. See "Cards."
NOTE: This error message applies only to Dell Precision 450 computers.