Dell XPS Gen 3 Owner's Manual - Page 49

Light Pattern ABCD ABCD ABCD = yellow = green = off Problem Description Suggested Resolution No memory modules are detected. • If you have two or more memory modules installed, remove the modules, reinstall one module (see page 71), and then restart the computer. If the computer starts normally, reinstall an additional module. Continue until you have identified a faulty module or reinstalled all modules without error. • If available, install properly working memory of the same type into your computer (see page 71). • If the problem persists, contact Dell (see page 123). Memory modules are detected, but a memory configuration or compatibility error exists. • Ensure that no special memory module/memory connector placement requirements exist (see page 70). • Verify that the memory modules that you are installing are compatible with your computer (see page 70). • If the problem persists, contact Dell (see page 123). A possible expansion card failure has occurred. 1 Determine if a conflict exists by removing a card (not a graphics card) and restarting the computer (see page 74). 2 If the problem persists, reinstall the card that you removed, remove a different card, and then restart the computer. 3 Repeat this process for each card. If the computer starts normally, troubleshoot the last card removed from the computer for resource conflicts (see page 57). 4 If the problem persists, contact Dell (see page 123). Advanced Troubleshooting 49