System Messages1-2-2 DMA initialization failure1-2-3 DMA page register read/write failure3-1-1 Slave DMA register failure3-1-2 Master DMA register failure3-1-3 Master interrupt mask register failure3-1-4 Slave interrupt mask register failure3-2-2 Interrupt vector loading failure3-2-4 Keyboard Controller Test failure3-3-1 NVRAM power loss3-3-2 NVRAM configuration3-3-4 Video Memory Test failure3-4-1 Screen initialization failure3-4-2 Screen retrace failure3-4-3 Search for video ROM failure4-2-1 No time tick4-2-2 Shutdown failure4-2-3 Gate A20 failure4-2-4 Unexpected interrupt in protected mode4-3-3 Timer-chip counter 2 failure4-3-4 Time-of-day clock stopped4-4-1 Serial or parallel port test failure4-4-4 Cache test failureNOTE: If the message you received is not listed in the table, see the documentation for either the operating system or the program that was runningwhen the message appeared.Message Possible Cause Corrective Action8042 Gate-A20errorThe keyboard controller failedits test.If you receive this message after youmake changes in the system setupprogram, enter the system setupprogram and restore the original value(s).Address LineShort!An error in the addressdecoding circuitry in thememory has occurred.Reseat the memory modules.C: Drive ErrorC: Drive FailureThe hard drive is not workingor is not configured correctly.Ensure that the drive is installedcorrectly in the computer and definedcorrectly in the system setup program.Cache MemoryBad, Do NotEnable CacheThe cache memory is notoperating.See "Contacting Dell" in your Owner'sManual for instructions on obtainingtechnical assistance.CH-2 Timer Error An error is occurring on thetimer on the system board.See "Contacting Dell" in your Owner'sManual for instructions on obtainingtechnical assistance.CMOS BatteryState LowCMOS ChecksumFailureCMOS SystemOptions Not SetCMOS DisplayType MismatchCMOS Memory SizeMismatchCMOS Time andDate Not SetThe system configurationinformation in the systemsetup program is incorrect orthe battery charge may below.Enter the system setup program, verifythe system configuration, and thenrestart the computer.Diskette BootFailureDrive A or B is present buthas failed the BIOS POST.Ensure that the drive is installedcorrectly in the computer and definedcorrectly in the system setup program.Check the interface cable at both ends.DMA Error Error in the DMA controller on The keyboard or system board may need