Dell Precision T7400 Quick Reference Guide  - Page 29

Light Pattern Problem Description A possible expansion card failure has occurred. Another failure has occurred. Suggested Resolution 1 Determine if a conflict exists by removing an expansion card (not a graphics card) and restarting the computer (see "Cards" in your User's Guide). 2 If the problem persists, reinstall the card you removed, and then remove a different card and restart the computer. 3 Repeat this process for each expansion card installed. If the computer starts normally, troubleshoot the last card removed from the computer for resource conflicts (see "Restoring Your Operating System" in your User's Guide). 4 If the problem persists, contact Dell (see "Contacting Dell" in your User's Guide). • Ensure that all hard drive and CD/DVD drive cables are properly connected to the system board (see "System Board Components" in your User's Guide). • If there is an error message on the screen identifying a problem with a device (such as the floppy drive or hard drive), check the device to make sure it is functioning properly. • If the operating system is attempting to boot from a device (such as the floppy drive or CD/DVD drive), check the system setup program (see "System Setup" in your User's Guide) to ensure the boot sequence is correct for the devices installed on your computer. • If the problem persists, contact Dell (see "Contacting Dell" in your User's Guide). Quick Reference Guide 29