128 TroubleshootingU N E X P E C T E D I N T E R R U P T I N P R O T E C T E D M O D E — The keyboard controller maybe malfunctioning, or a memory module may be loose. Run the SystemMemory tests and the Keyboard Controller test in the Dell Diagnostics (see"Dell Diagnostics" on page 111).X :\ I S N O T A C C E S S I B L E . T H E D E V I C E I S N O T R E A D Y — Insert a disk into thedrive and try again.W A R N I N G : B A T T E R Y I S C R I T I C A L L Y L O W — The battery is running out ofcharge. Replace the battery, or connect the computer to an electrical outlet;otherwise, activate hibernate mode or shut down the computer.ExpressCard ProblemsCAUTION: Before you begin any of the procedures in this section, follow thesafety instructions in theProduct Information Guide.C H E C K T H E E X P R E S S C A R D — Ensure that the ExpressCard is properly insertedinto the connector.C H E C K T H A T T H E C A R D I S R E C O G N I Z E D B Y W I N D O W S — Double-click the SafelyRemove Hardware icon in the Windows taskbar. Some cards do not supportthis feature. If the card supports this Windows feature, the card will be listed.I 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 E X P R E S S C A R D — Contact Dell(see "Contacting Dell" on page 165). Also, for Mobile Broadband (WWAN)ExpressCards, see "Mobile Broadband (Wireless Wide Area Network[WWAN])" on page 135.I F Y O U H A V E P R O B L E M S W I T H A N E X P R E S S C A R D N O T P R O V I D E D B Y D E L L —Contact the ExpressCard manufacturer.IEEE 1394 Device ProblemsCAUTION: Before you begin any of the procedures in this section, follow thesafety instructions in theProduct Information Guide.E N S U R E T H A T T H E IEEE 1394 D E V I C E I S R E C O G N I Z E D B Y W I N D O W S —1 Click Start→ Control Panel→ System and Maintenance→ Device Manager.NOTE: The User Account Control window may appear. If you are anadministrator on the computer, click Continue; otherwise, contact youradministrator to continue the desired action.If your IEEE 1394 device is listed, Windows recognizes the device.
