Toshiba Qosmio G20 (PQG21) - Manual (Page 21)

User’s Manual xxi
General Precautions
The cautions on use of a Qosmio G20 series
computer
1. Cleaning of dust accumulated on the cooling vent of the computer.
2. Cooling vents on the underside of the computer.
Cooling vents
When you use your computer in a dusty area, dirt and debris may
accumulate on the cooling vents at the underside. If this occurs, the
accumulated dust can cause insufficient heat dissipation which may result
in the computer shutting down during use. Carefully clean the dust from
the vents using a vacuum cleaner.
Cooling vents Cooling vents
Cooling vents
To prevent possible overheating of the CPU, make sure the cooling fan’s
air intake is not blocked. The fan draws in air by creating a vacuum. If the
fan is blocked, it could cause the CPU to run at a lower performance level
or cause the computer to shut down. Loose items such as notebook and
tissue paper, plastic wrappers, or other similar materials can block the air
intake, preventing air from reaching the CPU. Do not use the computer on
surfaces with objects that can be drawn in by the cooling fan.