Dell OptiPlex N Service Manual (.pdf) - Page 35

Beep Codes and Error Messages, POST Beep Codes

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Chapter 3 Beep Codes and Error Messages This chapter describes beep codes and system error messages that can occur during the POST or, in the case of some failures, during normal computer 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 computer does not emit beep codes or display system error messages to indicate a failure, you should use the server-based diagnostics and the harddisk-based or diskette-based diagnostics to help isolate the source of the problem. See "Server-Based Diagnostics," "Hard-Disk-Based Diagnostics," and "Diskette-Based Diagnostics" in Chapter 2. POST Beep Codes If the monitor cannot display error messages during the POST, the computer 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 a fatal error that prevents the computer from completing the boot routine until the indicated condition is corrected. When the computer emits a beep code, record the code and then find it in Table 3-1. If the table does not lead to the source of the problem, run the server-based diagnostics and, if necessary, run the appropriate tests in the harddisk-based or diskette-based diagnostics to assist in troubleshooting the problem. Beep Codes and Error Messages 3-1

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Beep Codes and Error Messages
3-1
Chapter 3
Beep Codes and Error Messages
T
his chapter describes beep codes and system error messages that can occur
during the POST or, in the case of some failures, during normal computer oper-
ation. 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 computer does not emit beep codes or display system error messages
to indicate a failure, you should use the server-based diagnostics and the hard-
disk–based or diskette-based diagnostics to help isolate the source of the
problem. See “Server-Based Diagnostics,” “Hard-Disk–Based Diagnostics,”
and “Diskette-Based Diagnostics” in Chapter 2.
P
OST Beep Codes
If the monitor cannot display error messages during the POST, the computer
may emit a series of beeps that identifies the problem or that can help you iden-
tify a faulty component or assembly. Table 3-1 lists the beep codes that may be
generated during the POST. Most beep codes indicate a fatal error that prevents
the computer from completing the boot routine until the indicated condition is
corrected.
When the computer emits a beep code, record the code and then find it in
Table 3-1. If the table does not lead to the source of the problem, run the
server-based diagnostics and, if necessary, run the appropriate tests in the hard-
disk–based or diskette-based diagnostics to assist in troubleshooting the
problem.