Dell YT465 manual Dell Technical Update Service, When to Use the Dell Diagnostics

Light Pattern	Problem Description	Suggested Resolution
	A possible modem	• If available, install a working modem
	failure has occurred.	into your computer.

•If the problem persists, contact contact Dell Support.

Dell™ Technical Update Service

The Dell Technical Update service provides proactive e-mail notification of software and hardware updates for your computer. The service is free and can be customized for content, format, and how frequently you receive notifications.

To enroll for the Dell Technical Update service, go to support.dell.com/technicalupdate.

Dell Diagnostics

Fill out the Diagnostics Checklist (see "Diagnostics Checklist" on page 153) as you complete these checks.

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

When to Use the Dell Diagnostics

If you experience a problem with your computer, perform the checks in "Lockups and Software Problems" on page 92 and run the Dell Diagnostics before you contact Dell for technical assistance.

It is recommended that you print these procedures before you begin.

NOTICE: The Dell Diagnostics works only on Dell™ computers.

NOTE: The Drivers and Utilities media is optional and may not ship with your computer.

Enter the System Setup Program (see "System Setup Program" on page 103), review your computer’s configuration information, and ensure that the device you want to test displays in system setup and is active.

Start the Dell Diagnostics from your hard drive or from the Drivers and Utilities media.

Starting the Dell Diagnostics From Your Hard Drive

The Dell Diagnostics is located on a hidden diagnostic utility partition on your hard drive.

NOTE: If your computer cannot display a screen image, contact Dell (see "Contacting Dell" on page 152).

1If the computer is connected to a docking device (docked), undock it. See the documentation that came with your docking device for instructions. Ensure the computer is connected to a known good electrical outlet.

2Turn on (or restart) your computer.

Troubleshooting

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