Dell Precision 490 Desktop User Manual

Error Messages
Fill out the Diagnostics Checklist as you complete these checks.

If the message is not listed, see the documentation for the operating system or the program that was running when the message appeared.
4-2-2
Shutdown failure
4-2-3
Gate A20 failure
4-2-4
Unexpected interrupt in protected mode
4-3-1
Memory failure above address 0FFFFh
4-3-3
Timer-chip counter 2 failure
4-3-4
Time-of-day clock stopped
4-4-1
Serial or parallel port test failure
4-4-2
Failure to decompress code to shadowed memory
4-4-3
Math-coprocessor test failure
4-4-4
Cache test failure
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

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, click Control Panel, and then click Add or Remove Programs.
2. Select the program you want to remove.
3. Click the Change or Remove Program icon.
4. See the program documentation for installation instructions.

Alert!CPUFanNotDetected— Ensure that the cooling fan and airflow shroud are properly installed and working.

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— Contact Dell and report the checkpoint code (nnnn) to the support technician (see
Contacting Dell).
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Alert!PreviousFanFailures— 
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Alert!PreviousProcessorThermalFailure— 
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Alert!PreviousShutdownDuetoThermalEvent— 
Ensure that nothing is blocking the airflow vents and that all the fans are properly installed and operating correctly. Also, ensure that the
processor heat-sink assembly is properly installed.

Alert!PreviousRebootWasDuetoVoltageRegulatorFailure— Contact Dell for assistance (see Contacting Dell).

Alert!SystemBatteryVoltageisLow— Replace the battery (see Battery).

Alert!UnabletoInitializeallInstalledMemory— 
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Alert!UncorrectableMemoryErrorPreviouslyDetectedinDIMM_X/Y— 
See Memory Problems.
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Dell Precision 490 Desktop Specifications

General

Brand	Dell
Model	Precision 490 Desktop
Category	Desktop
Language	English