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2-4
Dell Dimension XPS R xxx Systems Service Manual
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Do these indicators flash on and off within approximately 10 seconds after
the boot routine starts?
Yes. Proceed to step 4.
No. Troubleshoot the computer power supply. If the troubleshooting proce-
dure indicates that the computer power supply is operational, troubleshoot
the memory subsystem.
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Diskette-drive and hard-disk drive access indicators : These indicators
light up in response to data being transferred to or from the drives. If
either of these indicators fails to light up during the boot routine, trou-
bleshoot the diskette drive or hard-disk drive subsystem, as
appropriate.
Beep codes : A beep code is a series of beeps that indicates an error
condition. If the computer emits a beep code, refer to Table 3-1.
System error messages : These messages can indicate problems or
provide status information. If a system error message is displayed,
refer to Table 3-2.
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Does the Diagnostics Menu appear?
Yes. See "Running the Dell Diagnostics" found later in this chapter.
No. Proceed to step 6.
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Does the Diagnostics Menu appear?
Yes. See "Running the Dell Diagnostics" found later in this chapter.
No. Remove the diagnostics diskette from the diskette drive; then proceed
to the next section, "Internal Visual Inspection."
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A simple visual inspection of a computer's interior hardware can often lead to
the source of a problem, such as a loose expansion card, cable connector, or
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