User manual
Beep Codes and Error Messages 3-1
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This chapter describes beep codes and system error messages that can occur
during system start-up or, in the case of some failures, during normal system
operation. The tables in this chapter list faults that can cause a beep code or
system error message to occur and the probable causes of the fault in each
case.
If a faulty system does not emit beep codes or display system error messages
to indicate a failure, you should run the appropriate tests in the Dell Diagnos-
tics to help isolate the source of the problem. See “Running the Dell
Diagnostics” in Chapter 2.
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If the monitor cannot display error messages during the POST, the system may
emit a series of beeps that identifies the problem or that can help you identify
a faulty component or assembly. Table 3-1 lists the beep codes that may be
generated during the POST. Most beep codes indicate an error that may pre-
vent the system from completing the boot routine until the indicated condition
is corrected. If the table does not lead to the source of the problem, run the
appropriate tests in the Dell Diagnostics to assist in troubleshooting the
problem.