Advanced Troubleshooting 57A possible expansion card failure has occurred. 1 Determine if a conflict exists by removing acard (not a graphics card) and restarting thecomputer (see "Removing PCI and PCIExpress Cards" on page 89).2 If the problem persists, reinstall the card thatyou removed, remove a different card, andthen restart the computer.3 Repeat this process for each card. If thecomputer starts normally, troubleshoot thelast card removed from the computer forresource conflicts (see "Resolving Softwareand Hardware Incompatibilities" onpage 64).4 If the problem persists, contact Dell (see"Contacting Dell" on page 142).Another failure has occurred. • Ensure that the cables are properlyconnected to the system board from the harddrive, CD drive, and DVD drive (see "SystemBoard Components" on page 78).• If there is an error message on your screenidentifying a problem with a device (such asthe floppy drive or hard drive), check thedevice to make sure it is functioning properly.• The operating system is attempting to bootfrom a device (such as the floppy drive orhard drive); check system setup (see "SystemSetup" on page 131) to make sure the bootsequence is correct for the devices installedon your computer.• If the problem persists, contact Dell (see"Contacting Dell" on page 142).The computer is in a normal operatingcondition after POST.None.Light Pattern Problem Description Suggested Resolution