Dell N8151 manual Light Pattern Problem Description Suggested Resolution

m s u p p o r t . d e l l . c o m

Light Pattern	Problem Description	Suggested Resolution
	A possible BIOS failure has occurred; the	Run the BIOS Recovery utility, wait for
	computer is in the recovery mode.	recovery completion, and then restart
		the computer.

A possible processor failure has occurred. Reinstall the processor and restart the computer.

w w w . d e l l . c o

Memory modules are detected, but a memory failure has occurred.

1 Reseat the memory modules to ensure that your computer is successfully communicating with the memory.

2 Restart the computer.

3 If the problem still exists, remove all the memory modules and install one memory module in memory module connector 4.

4 Restart the computer.

The following message appears:

Alert! Operating in Debug Mode. Please Populate Memory in Pairs for Normal Operation.

5 Press <F1> to boot to the operating system.

6 Run the Dell Diagnostics. See page 34 for instructions.

7 If the memory module passes, shut down the computer, remove the memory module, and then repeat the process with the remaining memory modules until a memory error occurs during start-up or diagnostic testing. If the first memory module tested is defective, repeat the process with the remaining modules to ensure that the remaining modules are not defective.

8 When the defective memory module is identified, contact Dell for a replacement. For instructions on contacting Dell, see your User’s Guide.

NOTE: If necessary, the computer can operate in debug mode until new memory modules are installed.

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