TW201324107A - Computer system - Google Patents

Abstract

A computer system includes a mother board, a graphic card, and a power control unit. There are a processing unit, a graphic chip, and an interface that electrically arranged on the mother board. The processing unit electrically connects to the graphic chip and the interface respectively. The graphic card is electrically arranged on the mother board via the interface and has a power switch thereof. The power control unit electrically connects the processing unit with the power switch. The processing unit executes the software program to enable the graphic chip or graphic card optionally, and transmits an enable/disable signal to the graphic card through the power control unit for turning on/off the power switch of the graphic card which corresponding to the enable/or an enable signal.

Description

computer system

The present invention relates to a computer system, and more particularly to a computer system having a built-in display chip and an external display card.

In order to meet the user's operational requirements, in addition to the display chip (generally referred to as a built-in graphics card), a detachable external display card is usually coupled to the motherboard. (Generally referred to as external graphics card), allowing users to operate alternately according to different usage requirements, taking into account the operating efficiency and power management of the computer system.

For example, in general use cases, in order to save power usage, built-in display chips are often used as a source of image output; and when higher performance is required, such as when executing a drawing program or game software, an external display is usually externally connected. The card is used as a source of image output. The design and structure of the built-in display chip is relatively simple, so although the effect is lower, it is more energy-efficient, while the external display card has higher efficiency, but because of the complicated structure, for example, it is often necessary to match the extra The memory is even a heat sink, so it consumes more power.

At present, when the related power management mechanism in the computer system performs switching management between the built-in display chip and the external display card, most of the devices that are not selected for use are placed in a standby or idle state. In fact, although the built-in display chip or external graphics card is not used or operated in this state, the motherboard will still supply part of the power supply to the unselected users, and the computer system still has considerable power. Consumption, especially when the external graphics card is idle. Therefore, the power management mechanism currently used in computer systems has very limited effects on energy conservation or power management.

In view of the above problems, the present invention provides a computer system capable of controlling the power supply between a built-in display chip and an external display card, thereby solving the problems and inconveniences faced by the above-mentioned conventional computer system in balancing efficiency output and power management.

The computer system disclosed in the present invention comprises a circuit board, a display card and a power control component. A processing unit, a display chip and a connection interface are electrically disposed on the circuit board. The processing unit is electrically connected to the display wafer and the connection interface. The display card is electrically disposed on the circuit board through the connection interface and has a power switch. The power control component is electrically connected between the processing unit and the power switch of the display card. Wherein the processing unit selectively enables display of the wafer or display card. When the processing unit enables the display of the wafer, a disable signal is generated and transmitted to the display card through the power control component to turn off the power switch of the display card; when the processing unit enables the display card, a consistent energy signal is generated and transmitted through The power control component is transmitted to the display card to turn on the power switch of the display card to wake up the display card for operation.

The power control component of the computer system of the present invention may be a Universal Serial Bus (USB) component, or an Inter-Integrated Circuit (I ² C), or a Radio Frequency Identification System ( Radio Frequency Identification) component.

The computer system of the present invention further includes a switching device electrically connected to the processing unit. The switching device generates and transmits a trigger signal to the processing unit. The processing unit generates an enable signal according to the trigger signal, and transmits the enable signal through the power control component. Go to the display card to turn on the power switch of the display card.

The computer system of the present invention further includes a network connection device electrically connected to the processing unit and receiving a control signal from an internet network, the processing unit generates an enable signal according to the control signal, and transmits the enable signal through the power control element. Signal to the display card to turn on the power switch of the display card.

The effect of the invention is that the user can determine not only the image output device used but also the performance of the single output device according to the needs of the user. Moreover, in the power management, by completely cutting off the power supply for supplying the circuit board to the built-in display chip or the external display card, the power loss of the computer system can be effectively saved to avoid waste of energy, so that the present invention The management and control of the power supply further enhances the efficiency of the power supply.

The features, implementations, and utilities of the present invention are described in detail below with reference to the drawings.

Please refer to FIG. 1 , which is a block diagram of a system of a computer system according to a first embodiment of the present invention.

The computer system 10 disclosed in the first embodiment of the present invention includes a circuit board 100, a display card 400, and a power control component 500. The circuit board 100 is electrically connected to a processing unit 200, a display chip 300, and a connection interface 110, and the processing unit 200 is electrically connected to the display chip 300 and the connection interface 110, respectively, wherein the processing unit 200 is used to generate corresponding The power control signal is sent to the display chip 300 and the display card 400. Therefore, the processing unit 200 can be, but is not limited to, a central processing unit (CPU). Alternatively, the processing unit 200 can also be a power management chip. It is limited to those disclosed in the embodiments.

The display card 400 is electrically connected to the connection interface 110 and is electrically disposed on the circuit board 100 through the connection interface 110. The connection interface 110 can be a Peripheral Component Interconnect Express (PCI-E) or an acceleration. An image processing (Accelerated Graphics Port, AGP) interface or the like is used to electrically insert the display card 400 into the slot of the circuit board 100. It can be understood that the above-mentioned type of the connection interface 110 is not limited to the embodiment disclosed in the present invention.

In addition, a power switch 410 is disposed on the display card 400. The power control component 500 is electrically connected between the power switch 410 of the display card 400 and the processing unit 200 of the circuit board 100, so that the processing unit 200 can transmit power when selectively displaying the chip or the display card. The control component 500 transmits a power control signal to the display card 400, for example, transmits a disable signal or an enable signal to the display card 400 to correspondingly turn off or turn on the power switch 410 of the display card 400.

For example, when the processing unit 200 selectively enables the display of the wafer 300, the display wafer 300 is caused to operate by receiving the driving power from one of the circuit boards 100 through the processing unit 200, and at the same time, the processing unit 200 generates a disable. The signal is transmitted to the display card 400 through the power control component 500 to turn off the power switch 410. Moreover, when the processing unit 200 enables the display card 400, the enable signal generated by the processing unit 200 is transmitted to the display card 400 through the power control element 500 to turn on the power switch 410.

In the operation of the computer system 10, the processing unit 200 can be, but is not limited to, the normal display of the wafer 300, and the power switch 410 of the display card 400 is turned off, so that the display wafer 300 becomes the preset image of the computer system 10. Source of output. Then, the processing unit 200 determines whether to perform switching between the display wafer 300 and the display card 400 according to the use state of other application software in the computer system 10. For example, when the computer system 10 executes an application software with lower display performance requirements such as general document processing software or web browsing software, the processing unit 200 selects the display wafer 110 on the circuit board 100 as the image output source of the computer system 10, and The power switch 410 of the display card 400 is turned off, whereby the display card 400 can be prevented from continuously consuming power of the computer system 10. In addition, when the computer system 10 executes an application software that requires high display performance, such as a drawing software or a computer game software, the processing unit 200 transmits an enable signal to the display card 400 through the power control component 500 to turn on the power switch 410 of the display card 400. The computer system 10 can display the card 400 as a source of image output for the computer system 10. Therefore, through this selective power switching method, the image output performance of the computer system 10 can be optimized.

In addition, in order to further utilize the power of the computer system 10, when the processing unit 200 turns on the power switch 410 of the display card 400 to wake up the display card 400, the processing unit 200 can synchronously cut off the supply of the circuit board 100 to the display chip. The driving power of 300 disables the display of the wafer 300, thereby reducing the loss of the image output power of the computer system 10.

It should be noted that the display card 400 of the computer system 10 of the embodiment may be an external display card, or the display card 400 of the computer system 10 of the embodiment may be another computer peripheral device having a display chip. Moreover, the type of the display card 400 described above is not limited to the embodiment disclosed in the present invention.

The computer system 10 disclosed in the present invention selectively enables the display of the wafer 300 by the processing unit 200, and synchronously turns off the power switch 410 of the display card 400; or, disables the display of the wafer 300, and simultaneously turns on the display card 400. The power switch 410 wakes up the display card 400. Therefore, during the operation of the computer system 10, the circuit board 100 only needs to supply power to the display card 400, and supplies only a small portion of the current to the display wafer 300 or forcibly causes the display wafer 300 to be powered off. The power supply of the board 100 is effectively utilized. On the contrary, when the processing unit 200 turns off the power switch 410 of the display card 400, the circuit board 100 is only supplied with power to the display chip 300 without additional power supply to the display card 400. Thus, the computer system 10 can be effectively reduced. Power loss and reduced operating costs.

Based on the above, the computer system 10 of the present invention can flexibly utilize the display chip 300 or the display card 400 to improve the performance and power management convenience of the computer system 10, and by controlling the power of the display chip 300 and the display card 400. Supply, can achieve the effective management of power supply and save power.

In addition, it should be noted that, in this embodiment, the power control component 500 of the computer system 10 can be various forms of power signal transmission interfaces for generating power control signals such as enable signals and disable signals generated by the processing unit 200. Transferred to display card 400, the form of these power control elements 500 will be exemplified in other embodiments of the invention disclosed below.

Please refer to the perspective view of the computer system 20 of the present invention shown in FIG. 2, which is a perspective view of the computer system disclosed in the second embodiment of the present invention.

The second embodiment of the present invention is similar to the foregoing first embodiment, and the difference is that the power control component 500 of the computer system 20 disclosed in the second embodiment of the present invention is coupled to each other. A universal serial bus (USB) connector 510 and a signal transmission component of a universal serial bus port 520 are exemplified. The universal sequence bus bar connector 510 and the universal sequence bus bar port 520 are respectively disposed on the circuit board 100 and the display card 400, that is, if the universal sequence bus bar connector 510 is electrically disposed on the circuit board 100, the universal sequence convergence The row port 520 is electrically disposed on the display card 400 and vice versa.

In addition, it should be noted that the universal serial bus connector 510 and the universal serial bus port 520 of the computer system 20 of the embodiment may be in accordance with the USB 2.0 specification or conform to the USB 3.0 specification, and the above power control component. In 500, the specifications of the universal sequence bus bar connector 510 and the universal sequence bus bar port 520 are not limited to the embodiment disclosed in the present invention.

It should be noted that the universal serial bus connector 510 and the universal serial bus port 520 of the computer system 20 of the embodiment may be in accordance with the specifications of the general USB, or conform to the specifications of the mini USB, and the above power control components. In 500, the specifications and types of the universal sequence bus bar connector 510 and the universal sequence bus bar port 520 are not limited to the embodiment disclosed in the present invention.

It should be noted that the universal serial bus connector 510 and the universal serial bus port 520 of the computer system 20 of the embodiment may be in conformity with the specifications of the type A connector or conform to the specifications of the type B connector. The specifications of the control element 500, the universal sequence bus bar connector 510, and the universal sequence bus bar port 520 are not limited to the embodiments disclosed herein.

In the embodiment, the universal serial bus connector 510 and the universal serial bus port 520 of the computer system 20 can be coupled to each other through a USB cable-connected electrical connection line 530 to enable the power switch 410 of the display card 400. The processing unit 200 on the circuit board 100 can be electrically connected to the universal serial bus bar 520 via a universal serial bus connector 510. Therefore, when the computer system 20 elastically uses the display chip 300 or the display card 400 by the processing unit 200, the processing unit 200 can be connected to the universal serial bus 埠 520 as a enable signal and ban by the universal serial bus connector 510. The transmission medium of the power control signal such as the signal can be controlled to control the power switch 410 of the display card 400 to be turned on or off, thereby controlling the power supply of the display card 400 to achieve the functions of effectively managing the power and saving power. In addition, the computer system 20 of the present invention further provides different power control components 500, so that the processing unit 200 can perform power management of the display card 400 by using a USB interface commonly found in general computer systems. Since the USB connection interface has been generally installed in various computer systems, the flexibility of the display card 400 of the present invention is improved, so that the display card 400 of the present invention can be directly electrically connected to various computer systems having a USB connection interface. It also increases the range of computer system applications of the present invention and simplifies related design and cost savings.

Please refer to the perspective view of the computer system 21 of the present invention shown in FIG. 3, which is a perspective view of a third embodiment of the computer system disclosed in the present invention.

Please refer to the perspective view of the computer system 30 of the present invention shown in FIG. 3, which is a perspective view of a computer system according to a third embodiment of the present invention.

The difference between the third embodiment of the present invention and the foregoing second embodiment is that the power control component 500 of the computer system 30 disclosed in the third embodiment of the present invention is an internal integrated circuit (Inter-Integrated Circuit, I ² C). ). The power control component 500 is electrically disposed on the circuit board 100 and between the processing unit 200 and the connection interface 110, so that the processing unit 200 can transmit the enable signal or the disable signal to the connection interface by the power control component 500. 110. The power switch 410 is electrically connected to the display card 400 by the connection interface 110 to turn the power switch 410 on or off.

The internal integrated circuit (I ² C) is an inter-chip synchronous serial communication interface. Because there are only two transmission lines, one is the clock line (SCL) and the other is the data line (SDA), it has a simple structure and volume. The advantages of the smaller ones can reduce the space of the circuit board 100 and the number of the chip pins, and further reduce the cost. In addition, since the two transmission lines are bidirectional and allow the connection of the multi-master multi-servo system to perform the connection between the multiple wafers, other related technical details will not be described herein.

The computer system 30 of the present invention can flexibly select the display chip 300 or the display card 400 as a source of image output to improve the performance and operation convenience of the computer system 30. Moreover, the power switching between the display chip 300 and the display card 400 can be controlled to achieve effective power management and power saving. At the same time, the computer system 30 of the present invention can further integrate the circuit as a power control component, further simplifying the circuit design on the circuit board 100 and reducing the required circuit area and cost.

Please refer to the perspective view of the computer system 40 of the present invention shown in FIG. 4, which is a perspective view of a computer system according to a fourth embodiment of the present invention.

The fourth embodiment of the present invention is similar to the foregoing first embodiment. The difference is that the computer system 40 disclosed in the fourth embodiment of the present invention further includes a radio frequency identification (Radio) for the power control component 500. The frequency identification (RFID) sensor (Reader) 540 and a radio frequency identification tag (Tag) 550 radio frequency identification system connection interface are exemplified. The radio frequency identification sensor 540 and the radio frequency identification tag 550 are respectively disposed on the circuit board 100 and the display card 400. For example, when the radio frequency identification sensor 540 is electrically disposed on the circuit board 100, the radio frequency identification tag 550 is electrically set. In the display card 400, the radio frequency identification sensor 540 is electrically connected to the processing unit 200, and the radio frequency identification tag 550 is electrically connected to the power switch 410 of the display card 400.

A radio frequency identification system connection interface, or radio frequency identification technology, also known as an electronic tag, is a communication technology that can identify a specific target through radio signals and read and write related data without identifying mechanical or optical contact between the system and a specific target. It is usually an identification system consisting of a reader (Reader) and an RFID tag (Tag). Its operation principle is to use the sensor to emit radio waves, touch the RFID tag in the sensing range, generate current by electromagnetic induction, and supply the RFID tag. The wafer on the operation. Because the RFID tag can be divided into active and passive, and the passive tag itself does not need a power supply device, the required current is generated by the electromagnetic wave electromagnetic induction of the sensor, so it can be applied to the display card 400 in the present invention. Because the display card 400 itself does not have any power supply before the display card 400 is selectively used for use (or called wake-up), the passive reaction of the radio frequency identification system can make the display card 400 even without power supply. The display card 400 can still be activated by passively generating an induced current by electromagnetic induction.

The computer system 40 of the present invention is designed by the radio frequency identification sensor 540 and the radio frequency identification tag 550 as the power control component 500, so that the user can directly transmit the electromagnetic induction function of the radio frequency identification sensor 540 and the radio frequency identification tag 550. To manage the opening and closing of the power switch of the display card 400 to facilitate the management operation of the user. Even in a certain area, the display selection of the display chip 300 and the display card 400 of a plurality of computer systems can be managed by radio waves at the same time.

Please refer to FIG. 5, which is a block diagram of a system of a computer system according to a fifth embodiment of the present invention.

The fifth embodiment of the present invention is similar to the foregoing first embodiment. The difference is that the computer system 50 disclosed in the fifth embodiment of the present invention includes a circuit board 100, a display card 400, and a power supply. In addition to the control element 500, a switching device 600 is further included. The switching device 600 is electrically connected to the processing unit 200 for generating a trigger signal, so that the processing unit 200 selectively enables the display of the wafer 300 or the display card 400 according to the trigger signal, thereby synchronously enabling the display of the wafer 300 and turning off the display. The power switch 410 of the card 400 is either a disable display wafer 300 and a power switch 410 that turns on the display card 400.

It should be noted that the switch device 600 of the computer system 50 of the embodiment may be an electronic switch directly disposed on the circuit board 200 or the display card 400, or the switch device 500 of the computer system 50 of the embodiment is also It can be a mechanical switch disposed on the casing (not shown) of the computer system 50. As shown in FIG. 6, the embodiment is a switch device 600 coupled to a button of the processing unit 200 as an example. , but not limited to this. It is to be understood that the type of the above-mentioned switching device 600 is not limited to the embodiment disclosed in the present invention, and may be, but is not limited to, a physical switch disposed on a casing of a computer system.

The computer system 50 disclosed in the fifth embodiment of the present invention can be designed to allow the user to directly display the display chip 300 and display through the pressing operation of the switching device 600 according to the operation requirements of the computer system. The switching between the cards 400, that is, when the user requests the computer system 50 to perform a high display performance operation, the user can press the switching device 600 to cause the switching device 600 to generate a trigger signal and transmit it to the processing unit 200, and then The processing unit 200 respectively transmits signals to the display chip 300 and the display card 400 to synchronously disable the display chip 300 and the enable display card 400 to switch the image output source of the computer system 50 to achieve high display performance requirements.

Therefore, the computer system disclosed in the embodiment can trigger the processing unit through the switch device, thereby controlling the power supply of the display chip and the display card, thereby improving the efficiency and operation convenience of the computer system, and achieving effective management of the power source and the like. Save power consumption. In addition, if the switch device is in the form of a physical switch that is accessible to the user, the user can ensure the power switch between the display chip and the display card by actively pressing the operation mode of the switch device to make the image of the computer system Optimized output performance.

In addition, in the fifth embodiment of the present invention, the power control component 500 configured in the computer system can also adopt a signal including a universal serial bus (USB) connector 510 and a universal serial bus port 520. a transmission component (as shown in Figure 6); or an internal integrated circuit that is directly electrically disposed on the circuit board and interposed between the processing unit and the connection interface (as shown in Figure 7); or A radio frequency identification sensor 540 and a radio frequency identification system connection interface of the radio frequency identification tag 550 (as shown in FIG. 8) are used as the processing unit to transmit the disable signal and enable the signal to the display card. medium. It can be understood that the above-mentioned type of power control element 500 is not limited to the embodiment disclosed in the present invention.

Please refer to FIG. 9, which is a block diagram of a system of a computer system 60 according to a sixth embodiment of the present invention.

The sixth embodiment of the present invention is similar to the foregoing first embodiment. The difference is that the computer system 60 disclosed in the sixth embodiment of the present invention includes a circuit board 100, a display card 400, and a power supply. In addition to the control element 500, a network connection device 610 is further included. As shown in FIG. 10, the power control component 500 can be a signal transmission component including a universal serial bus connector 510 and a universal serial bus port 520; or, as shown in FIG. 11, The internal integrated circuit is directly electrically disposed on the circuit board 100; or, as shown in FIG. 12, the radio frequency identification system connection interface including the radio frequency identification sensor 540 and the radio frequency identification tag 550 is used. The disable signal and the enable signal generated by the processing unit 200 are transmitted to the display card 400 to control the power switch 410 of the display card 400 to be turned on or off.

The network connection device 610 can be, but is not limited to, electrically disposed on the circuit board 100 and electrically connected to the processing unit 200. The network connection device 610 is configured to receive a control signal from an internet network, and then transmit the control signal to the processing unit 200, so that the processing unit 200 selectively enables the display of the chip 300 or the display card 400 according to the control signal, and correspondingly The power switch 410 of the display card 400 is turned off or on.

It should be noted that the network connection device 610 of the computer system 60 of the embodiment may be a wireless network connection device, or the network connection device 610 of the computer system 60 of the embodiment may also be a wired network. The line connection device is shown in Figure 10. It is to be understood that the type of the network connection device 610 is not limited to the embodiment disclosed in the present invention.

The computer system 60 disclosed in the sixth embodiment of the present invention can flexibly use the display chip 300 or the display card 400 to achieve effective power management and power saving performance by setting the network connection device 610. Through the design of the network connection device 610, the user or the administrator can directly control the selection operation of the display unit 300 and the display card 400 by the processing unit 200 at the remote end through the network connection device 610, and even manage multiple computer systems at the same time. The switching operation of the power management of the display chip 300 and the display card 400 allows the user or the administrator to conveniently manage the power supply of the display system 300 and the display card 400 by the computer system.

Based on the above, the computer system disclosed in the present invention is directed to a general computer system. When the user has high display performance and low power loss operation requirements, the processing unit can be used, or the switch device on the computer system can be used. And the network connection unit triggers the processing unit, and then transmits signals through various power control elements to control the switching control between the display chip and the display card, for example, through a USB transmission component, an internal integrated circuit, or wireless identification. The components and the like are not only relatively straightforward and convenient, but also completely cut off the power of the display card when the display wafer is in operation, thereby effectively avoiding the power loss caused by the continuous power supply of the circuit board to the display card. At the same time, with various control mechanisms, the present invention provides users with more convenient power adjustment modes in many applications, such as remote network control or regional wireless management of multiple computer systems, which can not only improve In addition to the operational efficiency of the computer system, it also enhances the efficiency and convenience of the user's operation.

Although the embodiments of the present invention are disclosed above, it is not intended to limit the present invention, and those skilled in the art, regardless of the spirit and scope of the present invention, the shapes, structures, and features described in the scope of the present application. And the number of modifications may be made, and the scope of patent protection of the present invention shall be determined by the scope of the patent application attached to the specification.

10, 20, 30, 40, 50, 60. . . computer system

100. . . Circuit board

110. . . Connection interface

200. . . Processing unit

300. . . Display chip

400. . . graphics card

410. . . switch

500. . . Power control component

510. . . Universal serial bus connector

520. . . Universal serial bus connection埠

530. . . Electrical cable

540. . . Radio frequency identification sensor

550. . . Radio frequency identification tag

600. . . Switching device

610. . . Network connection device

1 is a block diagram showing the system of a computer system according to a first embodiment of the present invention.

2 is a perspective view of a computer system according to a second embodiment of the present invention.

Figure 3 is a perspective view of a computer system according to a third embodiment of the present invention.

Figure 4 is a perspective view of a computer system according to a fourth embodiment of the present invention.

Figure 5 is a block diagram showing the system of a computer system according to a fifth embodiment of the present invention.

6 to 8 are perspective views of a computer system having a different form of power control elements according to a fifth embodiment of the present invention.

Figure 9 is a block diagram showing the system of a computer system according to a sixth embodiment of the present invention.

10 to 12 are perspective views of a computer system according to a sixth embodiment of the present invention having different types of power supply control elements.

10. . . computer system

100. . . Circuit board

110. . . Connection interface

200. . . Processing unit

300. . . Display chip

400. . . graphics card

410. . . switch

500. . . Power control component

Claims (13)

A computer system comprising:
a circuit board electrically disposed with a processing unit, a display chip, and a connection interface, the processing unit being electrically connected to the display chip and the connection interface;
a display card is electrically disposed on the circuit board through the connection interface, and the display card has a power switch; and a power control component electrically connected between the processing unit and the power switch of the display card;
The processing unit selectively enables the display chip or the display card. When the processing unit enables the display chip, the processing unit generates a disable signal and transmits the power through the power control component. To the display card to turn off the power switch; when the processing unit enables the display card, the processing unit generates a consistent energy signal and transmits the power control component to the display card to turn on the power switch. The computer system of claim 1, wherein the power control component comprises a universal serial bus (USB) connector and a universal serial bus connector, which are coupled to each other, and the universal serial bus connector The universal serial bus bar is respectively disposed on the circuit board and the display card. The computer system of claim 2, further comprising a switch device electrically connected to the processing unit, the switch device generates and transmits a trigger signal to the processing unit, and the processing unit generates the signal according to the trigger signal The signal can be transmitted to the display card through the universal serial bus connector and the universal serial bus port. The computer system of claim 2, further comprising a network connection device electrically connected to the processing unit and receiving a control signal from an internet network, the processing unit according to the control The signal generates the enable signal. The computer system of claim 1, wherein the power control component is an Inter-Integrated Circuit (I ² C) and is electrically disposed on the circuit board. The computer system of claim 5, further comprising a switch device electrically connected to the processing unit, the switch device generates and transmits a trigger signal to the processing unit, and the processing unit generates the signal according to the trigger signal Can signal. The computer system of claim 5, further comprising a network connection device electrically connected to the processing unit and receiving a control signal from an internet network, the processing unit according to the control The signal generates the enable signal. The computer system of claim 1, wherein the power control component comprises a radio frequency identification (RFID) sensor (Reader) and a radio frequency identification tag (Tag) that can mutually sense each other. The radio frequency identification sensor and the radio frequency identification tag are respectively disposed on the circuit board and the display card. The computer system of claim 8, further comprising a switching device electrically connected to the processing unit, the switching device generating and transmitting a trigger signal to the processing unit, the processing unit generating the signal according to the trigger signal The signal can be transmitted to the display card through the RFID sensor and the RFID tag. The computer system of claim 8, further comprising a network connection device electrically connected to the processing unit and receiving a control signal from an internet network, the processing unit according to the control The signal generates the disable signal and is transmitted to the display card through the radio frequency identification sensor and the radio frequency identification tag. The computer system of claim 1, wherein the connection interface is a Peripheral Component Interconnect Express (PCI-E). The computer system of claim 1, wherein the processing unit normally enables the display wafer. The computer system of claim 1, wherein the processing unit selectively enables the display card and powers off the display chip.