Dell Precision 470: Diagnostic Light Codes Before POST Light Pattern Problem Description Suggested Resolution
Diagnostic Light Codes Before POST Light Pattern Problem Description Suggested Resolution: Dell Precision 470
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- Setting Up Your Dell Precision 670 Computer Connect the keyboard and the mouse. Connect the modem or the network cable.
- Connect the monitor.
- For single- and dual-monitor capable cards with a single connector
- For dual-monitor capable cards with one DVI and one VGA connector For dual-monitor capable cards with two DVI connectors
- Connect the speakers. Connect the power cables and turn on the computer and monitor.
- Install additional software or devices. To access the User’s Guide from your hard drive: To access your User’s Guide from the Dell Support website:
- Setting Up Your Dell Precision 470 Computer Connect the keyboard and the mouse. Connect the modem or the network cable.
- Connect the monitor.
- Connect the speakers. Connect the power cables and turn on the computer and monitor.
- To access the User’s Guide from your hard drive: To access your User’s Guide from the Dell Support website: Opening the Computer Cover
- Dell Precision 670 Computer
- Inside the Dell Precision 670 Computer
- Dell Precision 470 Computer Inside the Dell Precision 470 Computer
- Caring for Your Computer Solving Problems Resolving Software and Hardware Incompatibilities Microsoft Windows
- Windows 2000 Using System Restore in Windows XP
- Creating a Restore Point Restoring the Computer to an Earlier Operating State Using Last Known Good Configuration
- Other Options to Help Resolve Additional Device or Software Conflicts When to Use the Dell Diagnostics Before You Start Testing
- Running the Dell Diagnostics
- System Lights Power Light Hard-Drive Light Cause Corrective Action
- Beep Codes Code Cause Code Cause
- Error Messages Diagnostic Lights
- Diagnostic Light Codes Before POST Light Pattern Problem Description Suggested Resolution
- Light Pattern Problem Description Suggested Resolution Diagnostic Light Codes During POST Light Pattern Problem Description Suggested Resolution
- Light Pattern Problem Description Suggested Resolution
- Light Pattern Problem Description Suggested Resolution
- Light Pattern Problem Description Suggested Resolution
- Light Pattern Problem Description Suggested Resolution
- Light Pattern Problem Description Suggested Resolution Memory Overview
- Frequently Asked Questions How Do I... Solution Where to Find Additional Information
- How Do I... Solution Where to Find Additional Information
Diagnostic Light Codes Before POST
Light Pattern Problem Description Suggested Resolution
off
No electrical power is
Connect the computer to an electrical outlet. Ensure
supplied to the computer.
that the front-panel power light is on. If the power light
off
is off, ensure that the computer is connected to a
ABCD
off
working electrical outlet and then press the
off
power button.
If the problem is still not resolved, contact Dell for
technical assistance.
yellow
The computer is in a normal
Press the power button to turn the computer on.
off condition; the computer
off
If the computer does not turn on, ensure that the front-
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is connected to an
panel power light is on. If the power light is off, ensure
ABCD
off
electrical outlet.
that the computer is connected to a working electrical
off
outlet and then press the power button.
If the problem is still not resolved, contact Dell for
technical assistance.
yellow
The computer is in a reduced
Use one of the appropriate methods to "wake up" the
power or "sleep" state.
computer. See "Advanced Features" in the User’s Guide.
yellow
If the problem is not resolved and you are trying to wake
ABCD
off
the computer with a USB mouse or keyboard, substitute
off
the mouse or keyboard with a working PS/2 mouse or
keyboard and then try to wake the computer.
yellow
The BIOS is not executing. Ensure that the processor is seated correctly and restart
the computer.
yellow
If the problem is still not resolved, contact Dell for
ABCD
yellow
technical assistance.
off
off
A possible power supply or
Perform the procedure in "Power Problems" in the
power cable failure
User’s Guide.
yellow
has occurred.
If the problem is still not resolved, contact Dell for
ABCD
off
technical assistance.
off
off
A possible system board
Contact Dell for technical assistance.
failure has occurred.
off
ABCD
yellow
off
= yellow
= green
= off
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