Dell Latitude C640 User Manual

Specifications
Microprocessor
System Information
PC Card
Memory
Ports and Connectors
Communications
Video
Audio
Display
Keyboard
Touch Pad
Track Stick
Battery
AC Adapter
Physical
Environmental
Microprocessor
Microprocessor types
Intel® Mobile Pentium® 4M or Intel
Celeron® processor
L1 cache
8 KB (internal)
L2 cache
512 KB (on die)
External bus frequency
400 MHz
System Information
System chip set
Intel 845MP
Data bus width
64 bits
DRAM bus width
64 bits
Microprocessor address bus width
32 bits
PC Card
CardBus controller
Texas Instruments PCI 1420
CardBus controller
PC Card connector
two (supports two Type I or Type II
cards or one Type III card)
Cards supported
3.3 V and 5 V
PC Card connector size
68 pins
Data width (maximum)
PCMCIA 16 bits
CardBus 32 bits

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