Portable computer and method for preheating portable computer before booting

1. A portable computer comprising:

a power input terminal;

a heating unit disposed on an electronic component in the portable computer;

a sensor disposed on the electronic component in the portable computer, for sensing the temperature of the electronic component and providing a sensed temperature value;

a power button;

an indication device; and

a microprocessor, operationally coupled to the power input terminal, the heating unit, the sensor, the power button and the indication device, respectively, and receiving the sensed temperature value from the sensor,

wherein

when the power input terminal is connected to a power source and the power button is pressed, if the sensed temperature value is lower than a preset temperature value, the microprocessor controls the indication device to operate and controls the heating unit to heat the electronic component, and

when the sensed temperature value is higher than the preset temperature value, the microprocessor controls the indication device not to operate and controls the heating unit to stop heating the electronic component and the power button is configured to be pressed again to boot the portable computer.

2. The portable computer according to claim 1 , wherein the electronic component includes a central process unit (CPU), a north bridge chip, a south bridge chip, a clock generator, a power regulator, a storage device, a liquid crystal display (LCD) or a battery.

3. The portable computer according to claim 1 , wherein the preset temperature value is 0° C.

4. The portable computer according to claim 1 , wherein the indication device is a light emitting diode (LED).

5. The portable computer according to claim 1 , wherein if the sensed temperature value is lower than the preset temperature value, the microprocessor cuts off a signal generated by the power button when the power button is pressed.

6. The portable computer according to claim 1 , wherein if the sensed temperature value is higher than the preset temperature value, the microprocessor receives a signal generated by the power button when the power button is pressed and makes an embedded controller of the portable computer to generate a booting signal to boot the portable computer.

7. A method for preheating a portable computer before booting, wherein the portable computer includes a power input terminal, a heating unit disposed on an electronic component in the portable computer, a power button, a sensor disposed on the electronic component in the portable computer and an indication device, the method comprising:

providing power to the power input terminal of the portable computer;

pressing the power button and sensing the temperature of the electronic component with the sensor to provide a sensed temperature value;

when the sensed temperature value is lower than preset temperature value, controlling the indication device to operate and controlling the heating unit to heat the electronic component;

when the sensed temperature value is higher than the preset temperature value, controlling the indication device not to operate and controlling the heating unit stop heating the electronic component; and

pressing the power button again to boot the portable computer.

8. The booting method for preheating the portable computer according to claim 7 , wherein the preset temperature value is 0° C.

9. The booting method for preheating the portable computer according to claim 7 , wherein if the sensed temperature value is lower than the preset temperature value, a signal generated by the power button when the power button is pressed is cut off.