Dell Precision T5400 Quick Reference Guide - Page 30
Light Pattern, Problem Description, Suggested Resolution, A possible USB - graphics card
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Light Pattern Problem Description Memory modules are detected, but a memory failure has occurred. A possible graphics card failure has occurred. A possible floppy or hard drive failure has occurred. A possible USB failure has occurred. Suggested Resolution • If two or more memory modules are installed, remove the modules (see "Memory" in your User's Guide), reinstall one module, and then restart the computer. If the computer starts normally, continue to install additional memory modules (one at a time) until you have identified a faulty module or reinstalled all modules without error. • If available, install working memory of the same type into your computer (see "Memory" in your User's Guide). • If the problem persists, contact Dell (see "Contacting Dell" in your User's Guide). • Reseat any installed graphics cards (see "Cards" in your User's Guide). • If available, install a working graphics card into your computer. • If the problem persists, contact Dell (see "Contacting Dell" in your User's Guide). • Reseat all power and data cables and restart the computer. • If the problem persists, contact Dell (see "Contacting Dell" in your User's Guide). • Reinstall all USB devices, check cable connections, and then restart the computer. • If the problem persists, contact Dell (see "Contacting Dell" in your User's Guide). 30 Quick Reference Guide