Dell Inspiron 640M - Manual (Page 96)

96
Troubleshooting
Network Problems
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in the Product
Information Guide.
C HECK THE NETWORK CABLE CONNECTOR — 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 HECK THE NETWORK LIGHTS ON THE NETWORK CONNECTOR — No light indicates that no network
communication exists. Replace the network cable.
R ESTART THE COMPUTER AND LOG ON TO THE NETWORK AGAIN
C HECK YOUR NETWORK SETTINGS — 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 HECK THE POWER LIGHT — 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 HARGE THE BATTERY — The battery charge may be depleted.
1 Reinstall the battery.
2 Use the AC adapter to connect the computer to an electrical outlet.
3 Turn 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 HECK THE BATTERY STATUS LIGHT — 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 HECK THE BATTERY TEMPERATURE — If the battery temperature is below 0°C (32°F), the computer will
not start up.
T EST THE ELECTRICAL OUTLET — Ensure that the electrical outlet is working by testing it with another
device, such as a lamp.