Dell E520 service manual System Messages, Possible Cause, Corrective Action

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Advanced Troubleshooting: Dell Dimension E520 Service Manual

3-1-1 Slave DMA register failure

3-1-2 Master DMA register failure

3-1-3 Master interrupt mask register failure

3-1-4 Slave interrupt mask register failure

3-2-2 Interrupt vector loading failure

3-2-4 Keyboard Controller Test failure

3-3-1 NVRAM power loss

3-3-2 NVRAM configuration

3-3-4 Video Memory Test failure

3-4-1 Screen initialization failure

3-4-2 Screen retrace failure

3-4-3 Search for video ROM failure

4-2-1 No time tick

4-2-2 Shutdown failure

4-2-3 Gate A20 failure

4-2-4 Unexpected interrupt in protected mode

4-3-3 Timer-chip counter 2 failure

4-3-4 Time-of-day clock stopped 4-4-1 Serial or parallel port test failure 4-4-4 Cache test failure

System Messages

NOTE: If the message you received is not listed in the table, see the documentation for either the operating system or the program that was running when the message appeared.

Message

8042 Gate-

A20 error

Address Line Short!

Possible Cause

The keyboard controller failed its test.

An error in the address decoding circuitry in the memory has occurred.

Corrective Action

If you receive this message after you make changes in the system setup program, enter the system setup program (see Entering System Setup) and restore the original value(s).

Reseat the memory modules (see Memory).

C:Drive Error

C:Drive

Failure

Cache

Memory Bad,

Do Not

Enable

Cache

CH-2 Timer

Error

The hard drive is not working or is not configured correctly.

The cache memory is not operating.

An error is occurring on the timer on the system board.

Ensure that the drive is installed correctly in the computer and defined correctly in the system setup program (see Entering System Setup).

See "Contacting Dell" in your Owner's Manual for instructions on obtaining technical assistance.

See "Contacting Dell" in your Owner's Manual for instructions on obtaining technical assistance.

CMOS Battery The system configuration State Low

Enter the system setup program (see Entering

file:///T/htdocs/systems/dimE520/en/SM_EN/adtshoot.htm[10/16/2012 1:04:50 PM]

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Contents Model Dcta July 2006 Rev. A00 Recommended Tools Getting StartedTurning Off Your Computer Before Working Inside Your ComputerBack to Contents Front View of the Computer About Your ComputerBack View of the Computer Back Panel Connectors Has been securely attached VGA connector System Board Components Inside View of Your ComputerClrpswd Power Supply DC Connector Pin AssignmentsPin Number Signal Name Color Wire Gauge DC Power Connector P1DC Power Connector P2 DC Power Connect P3, P5, P8, and P9Pin Number Signal Name AWG Wire DC Power Connector P10 DC Power Connector P7Processor MemoryComputer Information Audio VideoExpansion Bus DrivesConnectors PowerControls and Lights Environmental PhysicalPower Lights Advanced TroubleshootingProblem Description Suggested Resolution Diagnostic LightsCode Cause Beep CodesMessage System MessagesPossible Cause Corrective ActionStarting the Dell Diagnostics Dell DiagnosticsDell Diagnostics Main Menu Option FunctionTab Function Reinstalling Drivers What Is a Driver?Drivers Identifying DriversClick Roll Back Driver Resolving Software and Hardware IncompatibilitiesClick Start, then click Help and Support Entering System Setup System Setup ScreensOverview System System Setup OptionsOnboard Devices Option Settings Boot SequenceChanging Boot Sequence for Future Boots Changing Boot Sequence for the Current BootClearing Forgotten Passwords Clearing Cmos Settings Flashing the BiosClick Save this program to disk, and then click OK Back to Contents Removing the Computer Cover Removing and Installing PartsInside View of Your Computer System Board Components Usbback DDR2 Memory Overview MemoryInstalling Memory Addressing Memory With 4-GB ConfigurationsRemoving Memory PCI Cards CardsRelease tab Bracket caught outside of slot Removing a PCI Card PCI Express Cards Installing a PCI Express CardPage Page Removing a PCI Express Card Removing the Drive Panel Drive PanelRemoving the Drive-Panel Insert Installing the Drive-Panel InsertDrives Installing the Drive PanelDrive Interface Connectors Connecting Drive CablesRemoving a Hard Drive Hard DriveInstalling a Hard Drive Drive Adding a Second Hard Drive Removing a Floppy Drive Floppy DriveInstalling a Floppy Drive Shoulder screws Removing a Media Card Reader Media Card ReaderInstalling a Media Card Reader Reader Media Card Reader Screws Removing a CD/DVD Drive CD/DVD DriveInstalling a CD/DVD Drive Screws Replacing the Battery BatteryRemoving the Power Supply Power SupplyProcessor Installing the Power SupplyRemoving the Processor Processor socket Installing the Processor Panel Removing the I/O Panel Panel ComponentsInstalling the I/O Panel Processor FanRemoving the Processor Fan Page Installing the Processor Fan System BoardRemoving the System Board Installing the System Board Replacing the Computer Cover
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