Toshiba Qosmio F20 (PQF22) - Manual (Page 101)

User’s Manual 4-29
Operating Basics
■ Before carrying your computer, shut down the computer, disconnect the
power cable and wait until the PC cools down. Failure to follow this
instruction could result in minor injury.
■ Always turn off the power when you move the computer. If the power
button has a lock, set it to the lock position. Also be careful not to
subject the computer to impact. Failure to follow this instruction could
result in damage to computer, computer failure or loss of data.
■ Never transport your computer with PC cards installed. This could
cause damage to your computer and/or PC card, resulting in product
failure.
■ Use the carrying case when transporting the computer.
■ When carrying your computer, be sure to hold it securely so that it does
not fall or hit anything.
■ Do not carry your computer by holding protruded portions.
Heat dispersal
To protect from overheating, the CPU has an internal temperature sensor.
If the computer’s internal temperature rises to a certain level, the cooling
fan is turned on or the processing speed is lowered. You can select
whether to control the CPU temperature by turning on the fan first, then if
necessary, lowering the CPU speed. Or, by lowering the CPU speed first,
then if necessary, turning on the fan. Use the Cooling Method item of the
Basic Setup tab in TOSHIBA Power Saver.
When the CPU temperature falls to a normal range, the fan is turned off
and the CPU operation returns to standard speed.
Maximum
Performance
Turns on the fan first, then if necessary, lowers the
CPU processing speed.
Performance Uses a combination of the fan and lowering the CPU
processing speed.
Battery
optimized
Lowers the CPU processing speed first, then if
necessary turns on the fan.
If the CPU temperature reaches an unacceptably high level with either
setting, the system automatically shuts down to prevent damage.
Data in memory will be lost.