Dell PP21L - Power Problems

Solving Problems 69
IF YOU EXPERIENCE OTHER MEMORY PROBLEMS —
• Reseat the memory modules to ensure that your computer is successfully communicating with the
memory.
See “Memory” on page 88.
• Ensure that you are following the memory installation guidelines. See “Memory” on page 88.
• Run the Dell Diagnostics. See “Dell Diagnostics” on page 57.
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 back of the computer and the network jack.
CHECK THE NETWORK LIGHTS ON THE NETWORK CONNECTOR — No light indicates that no network
communication exists. Replace the network cable.
RESTART 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.
ExpressCard Problems
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product
Information Guide.
C
HECK THE EXPRESSCARD — Ensure that the ExpressCard is properly inserted into the connector.
ENSURE THAT THE CARD IS RECOGNIZED BY WINDOWS — Double-click the Safely Remove Hardware icon
in the Windows taskbar. Ensure that the card is listed.
IF YOU HAVE PROBLEMS WITH A DELL-PROVIDED EXPRESSCARD — Contact Dell. See “Contacting Dell” on
page 112.
IF YOU HAVE PROBLEMS WITH AN EXPRESSCARD NOT PROVIDED BY DELL — Contact the ExpressCard
manufacturer.
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 33.