Dell NM176 System Beep Codes, Other failure Ensure that the optical drive, System is in a

Table 1-5. Diagnostic Indicator Codes (continued)

Code	Causes	Corrective Action
	Possible expansion	See "Troubleshooting Expansion
	card failure.	Cards" on page 113.

A B C D

A B C D

Other failure.	Ensure that the optical drive and
	hard drives are properly connected.
	See "Troubleshooting Your System"
	on page 97 for the appropriate drive
	installed in your system.
	If the problem persists, see "Getting
	Help" on page 127.

	The system is in a	Information only.
	normal operating
A B C D	condition after
	POST.

= y e l l o w

= g r e e n

= o f f

System Beep Codes

If an error that cannot be reported on the screen occurs during POST, the system may emit a series of beeps that identifies the problem.

NOTE: If the system boots without a keyboard, mouse, or monitor attached, the system does not issue beep codes related to those peripherals.

If a beep code is emitted, write down the series of beeps and then look it up in Table 1-6. If you are unable to resolve the problem by looking up the meaning of the beep code, use system diagnostics to identify the possible cause. If you are still unable to resolve the problem, see "Getting Help" on page 127.

About Your System

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