Dell XE specifications Diagnostic Lights, Light Pattern Problem Description Suggested Resolution

Page 13

3-3-2

Invalid 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 timer tick

 

 

4-2-2

Shutdown failure

4-2-3

Gate A20 failure

 

 

4-2-4

Unexpected interrupt in protected mode

 

 

4-3-1

Memory failure above address 0FFFFh

 

 

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

 

 

4-4-2

Failure to decompress code to shadowed memory

 

 

4-4-3

Math-coprocessor test failure

4-4-4

Cache test failure

 

 

Diagnostic Lights

To help troubleshoot a problem, your computer has four lights labeled 1, 2, 3, and 4 on the bank panel. When the computer starts normally, the lights flash before turning off. If the computer malfunctions, the sequence of the lights help to identify the problem.

NOTE: After the computer completes POST, all four lights turn off before booting to the operating system.

Light Pattern

Problem Description

Suggested Resolution

 

 

 

 

The computer is in a normal off

Plug the computer into a working electrical outlet.

 

condition or a possible pre-BIOS

If the problem persists, contact Dell.

 

failure has occurred.

 

 

The diagnostic lights are not lit

 

 

after the computer successfully

 

 

boots to the operating system.

 

 

A possible processor failure has

Reseat the processor (see Processor information for your computer).

 

occurred.

If the problem persists, contact Dell.

 

 

 

 

Memory modules are detected, but

If two or more memory modules are installed, remove the modules, then reinstall one module

 

a memory failure has occurred.

and restart the computer. If the computer starts normally, continue to install additional

 

 

memory modules (one at a time) until you have identified a faulty module or reinstalled all

 

 

modules without error.

 

 

If available, install working memory of the same type into your computer.

 

 

If the problem persists, contact Dell.

 

 

 

 

A possible graphics card failure has

Reseat any installed graphics cards.

 

occurred.

If available, install a working graphics card into your computer.

 

 

If the problem persists, contact Dell .

 

 

 

 

A possible floppy drive or hard

Reseat all power and data cables.

 

drive failure has occurred.

 

 

 

 

 

A possible USB failure has occurred.

Reinstall all USB devices and check all cable connections.

 

 

 

 

No memory modules are detected.

If two or more memory modules are installed, remove the modules, then reinstall one module

 

 

and restart the computer. If the computer starts normally, continue to install additional

 

 

memory modules (one at a time) until you have identified a faulty module or reinstalled all

 

 

modules without error.

 

 

If available, install working memory of the same type into your computer.

 

 

If the problem persists, contact Dell.

 

 

 

 

Memory modules are detected, but

Ensure that no special requirements for memory module/connector placement exist.

 

a memory configuration or

Ensure that the memory you are using is supported by your computer (see the Specifications

 

compatibility error has occurred.

section for your computer).

 

 

If the problem persists, contact Dell.

 

 

 

 

A possible expansion card failure

Determine if a conflict exists by removing an expansion card (not a graphics card) and

 

has occurred.

restarting the computer.

 

 

If the problem persists, reinstall the card you removed, then remove a different card and

 

 

restart the computer.

 

 

Repeat this process for each expansion card installed. If the computer starts normally,

 

 

troubleshoot the last card removed from the computer for resource conflicts.

 

 

If the problem persists, contact Dell.

 

 

 

 

Another failure has occurred.

Ensure that all hard drive and optical drive cables are properly connected to the system

 

 

board .

 

 

If there is an error message on the screen identifying a problem with a device (such as the

 

 

floppy drive or hard drive), check the device to make sure it is functioning properly.

Image 13
Contents Page Entering System Setup System SetupSystem Setup Options System Setup ScreenDisable Enable with PXE Disable EnableDisable No boot DisablePower Off default Deactivate defaultPower On Power On is set to disabledOption Settings Boot SequenceChanging the Boot Sequence for the Current Boot Enable F12 = Boot menu enabled by defaultPassword Protection Booting to a USB DeviceIf Password Status is set to Locked Assigning a System PasswordDisabling a Forgotten Password and Setting a New Password Administrator PasswordClearing Forgotten Passwords Jumper SettingsJumper Setting Description Clearing Cmos Settings Dell Diagnostics DiagnosticsWhen to Use the Dell Diagnostics Starting the Dell Diagnostics From Your Hard DriveBeep Codes Power Button Light CodesLight Pattern Problem Description Suggested Resolution Diagnostic LightsBack to Contents Removing and Replacing Parts Processor SpecificationsMemory VideoSystem Information NetworkExpansion Bus CardsSystem Board Connectors External ConnectorsControls and Lights Physical PowerEnvironmental Back to Contents System Board Layout Removing the Expansion Card Expansion CardReplacing the Expansion Card Removing the Coin-Cell Battery Coin-Cell BatteryReplacing the Coin-Cell Battery Removing the Cover CoverReplacing the Cover Removing the Fan FanReplacing the Fan Removing the Front Panel Front PanelReplacing the Front Panel Removing the Hard Drive Hard DriveReplacing the Hard Drive Removing the Heat Sink and Processor Heat Sink and ProcessorReplacing the Heat Sink and Processor Removing the Chassis Intrusion Switch Chassis Intrusion SwitchReplacing the Chassis Intrusion Switch Removing the Internal Speaker Internal SpeakerReplacing the Internal Speaker Removing the I/O Panel PanelReplacing the I/O Panel Removing the Memory MemoryReplacing the Memory Removing the Optical Drive Optical DriveReplacing the Optical Drive Removing the Power Supply Power SupplyReplacing the Power Supply Removing the System Board System BoardReplacing the System Board Removing the Front Thermal Sensor Thermal SensorReplacing the Front Thermal Sensor Removing the Back Thermal SensorReplacing the Back Thermal Sensor Before Working Inside Your Computer Working on Your ComputerTurning Off Your Computer Recommended ToolsClick Start→ Turn Off Computer→ Turn Off After Working Inside Your Computer