Troubleshooting 129I F Y O U H A V E P R O B L E M S W I T H A D E L L - P R O V I D E D IEEE 1394 D E V I C E — ContactDell or the IEEE 1394 device manufacturer (see "Contacting Dell" onpage 165).I F Y O U H A V E P R O B L E M S W I T H A N IEEE 1394 D E V I C E N O T P R O V I D E D B Y D E L L —Contact Dell or the IEEE 1394 device manufacturer (see "Contacting Dell"on page 165).Ensure that the IEEE 1394 device is properly inserted into the connectorKeyboard ProblemsCAUTION: Before you begin any of the procedures in this section, follow thesafety instructions in theProduct Information Guide.NOTE: Use the integrated keyboard when running the Dell Diagnostics or thesystem setup program. When you attach an external keyboard, the integratedkeyboard remains fully functional.External Keyboard problemsNOTE: When you attach an external keyboard, the integrated keyboard remainsfully functional.C H E C K T H E K E Y B O A R D C A B L E — Shut down the computer, disconnect thekeyboard cable and check it for damage, then firmly reconnect the cable.If you are using a keyboard extension cable, disconnect it and connect thekeyboard directly to the computer.C H E C K T H E E X T E R N A L K E Y B O A R D —1 Shut down the computer, wait 1 minute, and then turn it on again.2 Verify that the numbers, capitals, and scroll lock lights on the keyboardblink during the boot routine.3 From the Windows desktop, click Start→ All Programs→ Accessories→Notepad.4 Type some characters on the external keyboard and verify that they appearon the display.If you cannot verify these steps, you may have a defective externalkeyboard.