Dell OptiPlex 3020 Owner's Manual

Also see for OptiPlex 3020: Quick start guide Specifications Owner's manual Technical guidebook Technical guidebook

Dell OptiPlex 3020 Owner's Manual Manual pdf 43 page image

Cause Memory failureNOTE: 1. If the system is attached with an internal speaker we can hear the beep sound directly.NOTE: 2. If the system does have an internal speaker, connect an external speaker to line out connection to hear thebeep sound.NOTE: User can also check the power LED behavior instead of the beep code for troubleshooting purpose.Error messagesError message DescriptionAddress mark notfoundThe BIOS found a faulty disk sector or could not find a particular disk sector.Alert! Previousattempts atbooting thissystem have failedat checkpoint[nnnn]. For help inresolving thisproblem, pleasenote thischeckpoint andcontact DellTechnicalSupport.The computer failed to complete the boot routine three consecutive times for the same error. Contact Dell andreport the checkpoint code (nnnn) to the support technicianAlert! Securityoverride Jumper isinstalled.The MFG_MODE jumper has been set and AMT Management features are disabled until it is removed.Attachment failedto respondThe floppy or hard drive controller cannot send data to the associated drive.Bad command orfile nameEnsure that you have spelled the command correctly, put spaces in the proper place, and used the correctpathname.Bad error-correction code(ECC) on diskreadThe floppy or hard drive controller detected an uncorrectable read error.Controller hasfailedThe hard drive or the associated controller is defective.Data error The floppy or hard drive cannot read the data. For the Windows operating system, run the chkdsk utility to checkthe file structure of the floppy or hard drive. For any other operating system, run the appropriate correspondingutility.Decreasingavailable memoryOne or more memory modules may be faulty or improperly seated. Re-install the memory modules and, ifnecessary, replace them.Diskette drive 0seek failureA cable may be loose or the computer configuration information may not match the hardware configuration.Diskette readfailureThe floppy disk may be defective or a cable may be loose. If the drive access light turns on, try a different disk.Diskettesubsystem resetfailedThe floppy drive controller may be faulty.Gate A20 failure One or more memory modules may be faulty or improperly seated. Reinstall the memory modules and, ifnecessary, replace them.Troubleshooting your computer 43