126 TroubleshootingM E M O R Y D O U B L E W O R D L O G I C F A I L U R E A T A D D R E S S , R E A D V A L U E E X P E C T I N GV A L U E — A memory module may be faulty or improperly seated. Reinstall thememory modules and, if necessary, replace them (see "Memory" on page 95).M E M O R Y O D D / E V E N L O G I C F A I L U R E A T A D D R E S S , R E A D V A L U E E X P E C T I N GV A L U E — A memory module may be faulty or improperly seated. Reinstall thememory modules and, if necessary, replace them (see "Memory" on page 95).M E M O R Y W R I T E / R E A D F A I L U R E A T A D D R E S S , R E A D V A L U E E X P E C T I N G V A L U E — Amemory module may be faulty or improperly seated. Reinstall the memorymodules and, if necessary, replace them (see "Memory" on page 95).N O B O O T D E V I C E A V A I L A B L E — The computer cannot find the hard drive. Ifthe hard drive is your boot device, ensure that the drive is installed, properlyseated, and partitioned as a boot device.N O B O O T S E C T O R O N H A R D D R I V E — The operating system may be corrupted.Contact Dell (see "Contacting Dell" on page 165).N O 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 111).N O T E N O U G H M E M O R Y O R R E S O U R C E S . E X 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.O P 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 92). If the problem persists, contact Dell (see "Dell Diagnostics" onpage 111).O P 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 "Dell Diagnostics" on page 111).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.Windows XP: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.
