Dell NM176 owner manual Troubleshooting an Optical Drive

10Reconnect the system to its electrical outlet, and turn on the system and attached peripherals.

11Enter the System Setup program and check the system memory setting. See "Using the System Setup Program" on page 35. If the amount of memory installed still does not match the system memory setting, proceed to the next step.

12Turn off the system and attached peripherals, and disconnect the system from its electrical outlet.

13Open the system. See "Opening the System" on page 54.

NOTE: Several configurations for the memory modules exist; see "Memory Module Installation Guidelines" on page 81.

14If a diagnostic test or error message indicates a specific memory module as faulty, swap or replace the module. Otherwise, swap the memory module in socket 1 with a module of the same type and capacity that is known to be good. See "Installing Memory Modules" on page 82.

15Close the system. See "Closing the System" on page 55.

16Reconnect the system to its electrical outlet, and turn on the system and attached peripherals.

17As the system boots, observe any error message that appears and the diagnostic indicators on the front of the system.

18If the memory problem is still indicated, repeat step 12 through step 17 for each memory module installed until the faulty memory module is replaced.

If the problem persists after all memory modules have been checked, see "Getting Help" on page 127.

Troubleshooting an Optical Drive

Problem

•System cannot read data from a CD or DVD.

•Optical drive indicator does not blink during boot.

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Troubleshooting Your System