Dell Latitude C640 User Manual

9.
NOTICE: Do not use artificial means, such as a hair dryer or a fan, to speed the drying process.
CAUTION: To help prevent electrical shock, verify that the computer is thoroughly dry
before continuing with the rest of this procedure.
Ground yourself by touching one of the metal connectors on the back of the computer.10.
Replace the memory module(s), the memory module cover, and the screw(s).11.
Replace the hard drive.12.
Replace the module bay device and any PC Cards you removed.13.
Replace the battery.14.
Turn on the computer and verify that it is working properly.15.
NOTE: See your System Information Guide for information on your warranty coverage.
If the computer does not start, or if you cannot identify the damaged components, contact Dell.
If You Drop or Damage Your Computer
Save and close any open files, exit any open programs, and shut down the computer.1.
Disconnect the AC adapter from the computer and from the electrical outlet.2.
Turn off any attached external devices, and disconnect them from their power sources and then from
the computer.
3.
Remove and reinstall the battery.4.
Turn on the computer.5.
NOTE: See your System Information Guide for information on your warranty coverage.
If the computer does not start, or if you cannot identify the damaged components, contact Dell.
Resolving Other Technical Problems

Dell Latitude C640 Specifications

General

Brand	Dell
Model	Latitude C640
Category	Laptop
Language	English

Summary

Finding Information

Safety Instructions

Crucial safety guidelines for operating the computer and preventing damage.

About Your Computer

Using the Keyboard and Touch Pad

Dell™ AccessDirect™ Button

Touch Pad

Track Stick

Using a Battery

Battery Performance

Information on battery life, optimal usage, and factors affecting performance.

Charging the Battery

Procedures for charging the battery and understanding charging indicators.

Removing a Battery

Step-by-step instructions for safely removing the computer's battery.

Power Management

Management Tips

Power Management Modes

Explanation of standby and hibernate modes for power conservation.

Power Options Properties

Solving Problems

Power Problems

Troubleshooting steps for issues related to the computer's power supply and battery.

Error Messages

Video and Display Problems

Sound and Speaker Problems

Printer Problems

Using the Dell Diagnostics

When to Use the Dell Diagnostics

Guidance on when to perform diagnostic tests for hardware issues.

Starting the Dell Diagnostics

Step-by-step instructions for launching the Dell Diagnostics utility.

Advanced Testing

Adding and Replacing Parts

Adding Memory

Detailed instructions for installing or replacing memory modules in the computer.

Adding a Mini PCI Card

Replacing the Hard Drive

Step-by-step guide for safely removing and installing the computer's hard drive.

Adding a Modem

Passwords

Using a Primary Password

Steps for setting up and using a primary password for computer startup.

Using an Administrator Password

Using a Hard Drive Password

Instructions for setting a password to protect data on the computer's hard drive.

Specifications

Microprocessor

Memory

Ports and Connectors

Battery

Getting Help

Technical Assistance

Procedures for obtaining technical support from Dell for hardware or software issues.

Online Services