2.
If a problem is encountered during a test, a message appears with an error code and a description of the problem. Write down the error code and
problem description and follow the instructions on the screen.
3.
If you run a test from the
Custom Test
or
Symptom Tree
option, click the applicable tab described in the following table for more information.
4.
When the tests are completed, if you are running the Dell Diagnostics from the
Drivers and Utilities
disc, remove the disc.
5.
Close the test screen to return to the
Main
Menu
screen. To exit the Dell Diagnostics and restart the computer, close the
Main
Menu
screen.
Power Button Light Codes
The diagnostic lights give much more information about the system state, but legacy power light states are also supported in your computer. The power light
states are shown in following table.
Beep Codes
If the monitor cannot display error messages during the POST, the computer may emit a series of beeps that identifies the problem or that can help you
identify a faulty component or assembly. The following table lists the beep codes that may be generated during the POST. Most beep codes indicate a fatal
error that prevents the computer from completing the boot routine until the indicated condition is corrected.
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.
Tab
Function
Results
Displays the results of the test and any error conditions encountered.
Errors
Displays error conditions encountered, error codes, and the problem description.
Help
Describes the test and may indicate requirements for running the test.
Configuration Displays your hardware configuration for the selected device.
The Dell Diagnostics obtains configuration information for all devices from system setup, memory, and various internal tests, and it displays
the information in the device list in the left pane of the screen. The device list may not display the names of all the components installed on
your computer or all devices attached to your computer.
Parameters
Allows you to customize the test by changing the test settings.
Power Light
State
Description
Off
Power is off, light is blank.
Blinking Amber
Initial state of light at power up.
Indicates system has power, but the POWER_GOOD signal is not yet active.
If the
Hard Drive light is off
, it is probable that the power supply needs to be replaced.
If the
Hard Drive light on
, it is probable that an onboard regulator or VRM has failed. Look at the diagnostic lights for further information.
Solid Amber
Second state of the light at power up. Indicates the POWER_GOOD signal is active and it is probable that the power supply is fine. Look at
the diagnostic lights for further information.
Blinking Green
System is in a low power state, either S1 or S3. Look at the diagnostic lights to determine which state the system is in.
Solid Green
System is in S0 state, the normal power state of a functioning machine.
The BIOS will turn the light to this state to indicate it has started fetching op-codes.
Code
Cause
one long, two short
Memory test failure
one long, three short, two short No Memory
one short
<F12> key pressed
two short, one long
ROM BIOS checksum failure
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
condition or a possible pre-BIOS
failure has occurred.
l
Plug the computer into a working electrical outlet.
l
If the problem persists, contact Dell.
