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Troubleshooting

Dell™ Vostro™ 1510

Service Manual

Troubleshooting Tools

Solving Problems

Dell Technical Update Service

Dell Support Utility

Troubleshooting Tools

Diagnostic Lights

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions that shipped with your computer.

Your computer has three keyboard status lights located above the keyboard. During normal operation, the keyboard status lights display the current status (on or off) of the Num Lock, Caps Lock, and Scroll Lock features. If the computer starts without error, the lights flash, and then turn off. If the computer malfunctions, however, you can use the status of the lights to help identify the problem.

NOTE: After the computer completes POST, the Num Lock light may remain on, depending on your BIOS settings. For more information on using the system setup program, see the Dell™ Technology Guide on your computer or at support.dell.com.

Diagnostic Light Codes During POST

To troubleshoot a problem with your computer, read the sequence of the keyboard status lights in order from left to right (Num Lock, Caps Lock, and then

Scroll Lock). If the computer malfunctions the individual lights display a status of either On , Off , or Flashing .

Light

Problem Description

Suggested Resolution

Pattern

 

 

 

 

 

 

No memory modules are

If two or more memory modules are installed, remove the modules (see Removing a Memory Module), then

 

detected.

reinstall one module (see Replacing a Memory 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 (see Memory).

 

 

If the problem persists, contact Dell Support.

 

 

 

 

Memory modules are

If two or more memory modules are installed, remove the modules (see Removing a Memory Module), then

 

detected, but a memory

reinstall one module (see Replacing a Memory Module) and restart the computer. If the computer starts

 

failure has occurred.

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 (see Memory).

 

 

If the problem persists, contact Dell Support.

 

 

 

 

A possible processor

Reseat the processor (see Removing the Processor Module).

 

failure has occurred.

If the problem persists, contact Dell Support.

 

 

 

 

A possible graphics

Reseat any installed graphics cards.

 

card/video failure has

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

 

occurred.

If the problem persists, contact Dell Support.

 

 

 

 

A possible LCD failure has

Reseat the LCD cable (see Removing the Display Assembly).

 

occurred.

If the problem persists, contact Dell Support.

 

 

 

 

A possible keyboard

Reseat the keyboard (see Removing the Keyboard).

 

failure has occurred.

If available, connect an external keyboard.

 

 

If the problem persists, contact Dell Support.

 

 

 

 

A possible USB controller

Remove any USB devices.

 

failure has occurred.

If the problem persists, contact contact Dell Support.

 

 

 

Hardware Troubleshooter

If a device is either not detected during the operating system setup or is detected, but incorrectly configured, you can use the Hardware Troubleshooter to

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Dell 1510 Troubleshooting Tools, Diagnostic Lights, Hardware Troubleshooter, Diagnostic Light Codes During Post