Dell 640M, E1405 owner manual Network Problems, Power Problems

Network Problems

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

C H E C K T H E N E T W O R K C A B L E C O N N E C T O R — Ensure that the network cable is firmly inserted into both the network connector on the side of the computer and the network port or device.

C H E C K T H E N E T W O R K L I G H T S O N T H E N E T W O R K C O N N E C T O R — No light indicates that no network

communication exists. Replace the network cable.

R E S T A R T T H E C O M P U T E R A N D L O G O N T O T H E N E T W O R K A G A I N

C H E C K Y O U R N E T W O R K S E T T I N G S — Contact your network administrator or the person who set up your network to verify that your network settings are correct and that the network is functioning.

Power Problems

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

C H E C K T H E P O W E R L I G H T — When the power light is lit or blinking, the computer has power. If the power light is blinking, the computer is in standby mode—press the power button to exit standby mode. If the light is off, press the power button to turn on the computer.

NOTE: For information on standby mode, see "Power Management Modes" on page 39.

C H A R G E T H E B A T T E R Y — The battery charge may be depleted.

1Reinstall the battery.

2Use the AC adapter to connect the computer to an electrical outlet.

3Turn on the computer.

NOTE: Battery operating time (the time the battery can hold a charge) decreases over time. Depending on how often the battery is used and the conditions under which it is used, you may need to purchase a new battery during the life of your computer.

C H E C K T H E B A T T E R Y S T A T U S L I G H T — If the battery status light flashes orange or is a steady orange the battery charge is low or depleted. Connect the computer to an electrical outlet.

If the battery status light flashes green and orange, the battery is too hot to charge. Shut down the computer, disconnect the computer from the electrical outlet, and then let the battery and computer cool to room temperature.

If the battery status light rapidly flashes orange, the battery may be defective. Contact Dell. See "Contacting Dell" on page 135.

C H E C K T H E B A T T E R Y T E M P E R A T U R E — If the battery temperature is below 0°C (32°F), the computer will not start up.

TE S T T H E E L E C T R I C A L O U T L E T — Ensure that the electrical outlet is working by testing it with another device, such as a lamp.

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Troubleshooting