Light Pattern

Problem Description

Suggested Resolution

 

 

 

 

A possible expansion card failure has

1 Determine if a conflict exists by

 

occurred.

removing a card (not a graphics card)

 

 

and restarting the computer.

 

 

2 If the problem persists, reinstall the

 

 

card that you removed, remove a

 

 

different card, and then restart the

 

 

computer.

 

 

3 Repeat this process for each card. If

 

 

the computer starts normally,

 

 

troubleshoot the last card removed

 

 

from the computer for resource

 

 

conflicts (see "Resolving Software and

 

 

Hardware Incompatibilities" on

 

 

page 29).

 

 

4 If the problem persists, contact Dell.

 

 

 

 

Routine system activity preceding video

Watch your monitor for on-screen

 

initialization.

messages.

 

 

 

 

The computer is in a normal operating

None.

 

condition after POST.

 

NOTE: The diagnostic lights flicker briefly; they are turned off after the computer successfully boots to the operating system.

Frequently Asked Questions

How Do I...

Solution

Where to Find Additional Information

 

 

 

Set up my computer to use two

If your computer has the required

See "Setting Up Your Computer" on

monitors?

graphics card to support dual-

page 9 for information on connecting

 

monitor setup, then look in your

dual monitors to your computer.

 

shipping box for a Y-cable. The

 

 

Y-cable has a single connector on one

 

 

end (plug this connector into the

 

 

back panel) and branches into two

 

 

connectors (plug these connectors

 

 

into the monitor cables).

 

Quick Reference Guide

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Image 41
Dell D490 manual Frequently Asked Questions