86 TroubleshootingNO T I M E R T I C K I N T E R R U P T — A chip on the system board may bemalfunctioning. Run the System Set tests in the Dell Diagnostics (see "DellDiagnostics" on page 75).NO T E N O U G H M E M O R Y O R R E S O U R C E S . EX I T S O M E P R O G R A M S A N D T R Y A G A I N —You have too many programs open. Close all windows and open the programthat you want to use.OP E R A T I N G S YS T E M N O T F O U N D — Reinstall the hard drive (see "Hard Drive"on page 109). If the problem persists, contact Dell (see "Contacting Dell" onpage 132).OP T I O N A L ROM B A D C H E C K S U M — The optional ROM has failed. ContactDell (see "Contacting Dell" on page 132).A R E Q U I R E D .DLL F I L E W A S N O T F O U N D — The program that you are trying toopen is missing an essential file. Remove and then reinstall the program.1 Click Start→Control Panel→Add or Remove Programs→Programs andFeatures.2 Select the program you want to remove.3 Click Uninstall.4 See the program documentation for installation instructions.See the program documentation for installation instructions.SE C T O R N O T F O U N D — The operating system cannot locate a sector on thehard drive. You may have a defective sector or corrupted FAT on the hard drive.Run the Windows error-checking utility to check the file structure on thehard drive. See Windows Help and Support for instructions (click Start →Help and Support). If a large number of sectors are defective, back up thedata (if possible), and then reformat the hard drive.SE E K E R R O R — The operating system cannot find a specific track on thehard drive.SH U T D O W N F A I L U R E — A chip on the system board may be malfunctioning.Run the System Set tests in the Dell Diagnostics (see "Dell Diagnostics" onpage 75).TI M E -O F -D A Y C L O C K L O S T P O W E R — System configuration settings arecorrupted. Connect your computer to an electrical outlet to charge thebattery. If the problem persists, try to restore the data by entering the system
