Dell Precision 370 - SX280 Ultra Small Form Factor Quick Reference Manual

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Dell Precision 370 - SX280 Ultra Small Form Factor Quick Reference Manual Manual pdf 31 page image

Quick Reference Guide 31Error MessagesNOTE: If the message is not listed, see the documentation for either the operating system or the programthat was running when the message appeared.If an error occurs during start-up, a message may be displayed on the monitor identifying theproblem. See "Error Messages" in the User’s Guide for suggestions on resolving any problems.Diagnostic LightsCAUTION: Before you begin any of the procedures in this section, follow the safety instructionslocated in the Product Information Guide.To help you troubleshoot a problem, your computer has four lights labeled "A," "B," "C," and "D" onthe front or back panel. The lights can be yellow or green. When the computer starts normally, thelights flash. After the computer starts, all four lights display solid green. If the computermalfunctions, the color and sequence of the lights identify the problem.4-2-1 No timer tick4-2-2 Shutdown failure4-2-3 Gate A20 failure4-2-4 Unexpected interrupt in protected mode4-3-1 Memory failure above address 0FFFFh4-3-3 Timer-chip counter 2 failure4-3-4 Time-of-day clock stopped4-4-1 Serial or parallel port test failure4-4-2 Failure to decompress code to shadowed memory4-4-3 Math-coprocessor test failure4-4-4 Cache test failureCode Cause