System Beep CodesWhen errors occur during a boot routine that cannot be reported on the monitor, your computer may emit a beep code that identifies the problem. The beepcode is a pattern of sounds: for example, one beep, followed by a second beep, and then a burst of three beeps (code 1-1-3) means that the computer wasunable to read the data in nonvolatile random-access memory (NVRAM). This information is invaluable to the Dell support staff if you need to call for technicalassistance.When a beep code is emitted, write it down on a copy of the Diagnostics Checklist and look it up in the following table. If you are unable to resolve theproblem by looking up the meaning of the beep code, use the Dell Diagnostics to identify a more serious cause. If you are still unable to resolve the problem,contact Dell for technical assistance.If the system loses power and beeps constantly when you turn it back on, the BIOS is probably corrupted. See "BIOS Recovery Utility" for information onrestoring the BIOS.If the message persists, reinstall your operatingsystem. See the documentation that came with youroperating system.No timer tick interrupt A chip on the system board might bemalfunctioning.Run the System Board Devices tests in the DellDiagnostics.Non-system disk or disk error The diskette in drive A or your harddrive does not have a bootableoperating system installed.A nonbootable diskette is in drive A. Either replace thediskette with one that has a bootable operatingsystem, or remove the diskette from drive A andrestart the computer.Not a boot diskette There is no operating system on thediskette.Boot the computer with a diskette that contains anoperating system.Please connect USB Keyboard/Mouse to USB port 1 on theback of the computer.The USB keyboard and/or mouse mustbe connected to the port 1 USBconnectors.Turn your system off, connect the USB keyboardand/or mouse to one of the Port 1 USB connectors,and restart your system. See "Back-Panel Connectorsand Indicators."Plug and Play Configuration Error The system has encountered aproblem in trying to configure one ormore expansion cards.Turn your system off and unplug it. Remove all but oneof the cards. Plug in your system and reboot it. If themessage persists, the expansion card may bemalfunctioning. If the message does not appear, turnoff the power and reinsert one of the other cards.Repeat this process until you identify themalfunctioning card.Read faultRequested sector not foundThe operating system cannot readfrom the diskette or hard drive.The system could not find a particularsector on the disk, or the requestedsector is defective.See "Diskette Drive Problems" and "Hard DriveProblems."Reset failed The disk reset operation failed. See "Diskette Drive Problems" and "Hard DriveProblems."Sector not found The operating system is unable tolocate a sector on the diskette or harddrive.See "Diskette Drive Problems" and "Hard DriveProblems."Seek error The operating system is unable to finda specific track on the diskette or harddrive.If the error is on the diskette drive, try anotherdiskette in the drive.Shutdown failure A chip on the system board might bemalfunctioning.Run the System Board Devices tests in the DellDiagnostics.Time-of-day clock stopped The battery may be dead. Enter system setup and correct the date or time.If the problem persists, see "Battery Problems."Time-of-day not set The time or date displayed in thesystem configuration information doesnot match the system clock.Enter system setup and correct the date or time.Timer chip counter 2 failed A chip on the system board might bemalfunctioning.Run the System Board Devices tests in the DellDiagnostics.Unexpected interrupt in protected mode The keyboard controller may bemalfunctioning, or one or more RIMMsmay be loose.Run the System Memory and the Keyboard tests inthe Dell Diagnostics.WARNING: Dell's Disk Monitoring System has detectedthat drive [0/1] on the [primary/secondary] EIDEcontroller is operating outside of normalspecifications. It is advisable to immediately back upyour data and replace your hard drive by calling yoursupport desk or Dell Computer Corporation.POST has queried the EIDE drive forstatus information. The drive hasreturned a parameter from the callthat indicates it has detected possibleerror conditions for its operatingspecifications.When your computer finishes booting, immediatelyback up your data and replace your hard drive.Restore the data to the replaced drive.Back up the data on your hard drive. If a replacementdrive is not immediately available and the drive is notthe only bootable drive, enter system setup andchange the appropriate drive setting to None. Removethe drive from the system.Write faultWrite fault on selected driveThe operating system cannot write tothe diskette or hard drive.See "Diskette Drive Problems" and "Hard DriveProblems."System Beep CodesCode Cause Action1-1-2 Microprocessor register failure Contact Dell for technical assistance.1-1-3 NVRAM Run the System Board Devices tests in the Dell Diagnostics.1-1-4 ROM BIOS checksum failure Run the System Board Devices tests in the Dell Diagnostics, if possible.