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Beep Codes and Error Messages 3-1
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This chapter describes the beep codes and error messages that are common
to all members of the Dell OptiPlex GX1/GX1p Managed PC and OptiPlex NX1
Net PC family of computers. These error messages can occur during the POST
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 use the system diagnostics to run the appropri-
ate tests to help isolate the source of the problem (see “Running the System
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 a fatal error that pre-
vents the system from completing the boot routine until the indicated
condition is corrected.
When the system 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
appropriate tests in the system diagnostics to assist in troubleshooting the
problem.
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1-1-3 NVRAM write/read failure Defective system board
1-1-4 BIOS checksum failure Faulty BIOS or defective
system board
1-2-1
1-2-2
1-2-3
Programmable interval-timer
failure
DMA initialization failure
DMA page register write/
read failure
Defective system board