User's Manual

Troubleshooting
Quick Reference 3–5
■ If you suspect that the computer is overheating, allow the
computer to cool to room temperature. Then be sure to keep
all vents free from obstructions while you are using the
computer.
✎
The fan in the computer starts up automatically to cool internal
components and prevent overheating. It is normal for the internal
fan to cycle on and off during routine operation.
An external device is not working
If an external device does not function as expected, follow these
suggestions:
■ Turn on the device as instructed in the device user guide.
Some devices may not be powered by the computer, and must
be turned on before the computer is turned on.
■ Check the following conditions:
❏ All device connections are secure.
❏ The device is receiving electrical power.
❏ The device, especially if it is an older one, is compatible
with the operating system. For compatibility information,
refer to the device manufacturer’s Web site.
❏ The correct drivers are installed and updated. Drivers may
be available on a CD included with the device or on the
device manufacturer’s Web site. For more information
about updating drivers, select Start > Help and Support.
The home wireless network connection is
not working
If a home wireless network connection is not working as expected,
follow these suggestions:
■ Be sure that the wireless device is turned on and the wireless
light on the computer is blue. If the light is amber, press the
wireless button to turn on the wireless device.