TWI718807B - Server with vibration sensing function - Google Patents

Abstract

A server with vibration sensing function includes a cooling fan, a vibration sensing module and an arithmetic module. The vibration sensing module is disposed in the server and physically coupled to the cooling fan. The vibration sensing module obtains monitoring values updated continuously by detecting the vibration of the cooling fan. When the vibration sensing module confirms that the monitoring values match a threshold value, the vibration sensing module outputs a warning message. The arithmetic module receives the monitoring values and the warning message.

Description

Server with vibration sensing function

The present invention relates to a server, especially a server with vibration sensing function.

With the vigorous development of modern technology, electronic devices are developing in the direction of complexity, high speed, and automation, and the degree of interconnection between electronic devices is getting higher and higher. When a certain electronic device fails, there is a considerable possibility that the entire program or production process will be interrupted. In order to grasp the actual operating status of the electronic device, it is necessary to diagnose whether the electronic device is faulty, especially for safety-related Online real-time detection and diagnosis, such as heat dissipation components of electronic devices that generate high temperatures.

Fans are generally used for heat dissipation components of electronic equipment. Since fans are a mechanical device that continuously generates moments of inertia, if the center of mass is shifted due to process errors or long-term wear and tear, it is likely to cause abnormal vibrations. The phenomenon appears. For the server field, the impact caused by the abnormal vibration phenomenon not only has the problem of noise that resonates with other objects of the server, but also affects the durability of the most important storage module. In addition, the abnormal vibration of the fan not only affects the life of the fan itself, but also means that the fan may be about to end its life. For electronic equipment that generates high temperature, it may burn out quickly after the fan stops running at the end of its life, or cause more damage. Serious disaster. However, the existing technology can only focus on fan operation and No, understand the current status of the fan speed and the temperature of the electronic equipment. It is not possible to actively send out an early warning before the fan is about to be damaged. It often fails to respond when the problem occurs, resulting in the loss of the server's hardware or software.

Therefore, how to design a server with vibration sensing function, especially to improve the safety of the server, is an important subject studied by the inventor of this case.

The purpose of the present invention is to provide a server with vibration sensing function, in particular, it can actively send out an early warning before the fan is about to be damaged, which can not only avoid the noise problem of abnormal vibration, ensure the durability of the storage module, and avoid electronic equipment Damaged due to high temperature, to achieve the purpose of improving the safety of the server.

In order to achieve the foregoing objective, the server with vibration sensing function proposed in the present invention includes a cooling fan, a vibration sensing module and a computing module; wherein the cooling fan is arranged in the server; the vibration sensing module is arranged in the servo The vibration sensing module includes a microcontroller, an accelerometer, and a DIP switch. The DIP switch can easily change the set threshold as required. The accelerometer detects the cooling fan’s The vibration obtains the continuously updated monitoring value. The microcontroller is coupled to the accelerometer and the DIP switch. When the microcontroller confirms that the monitoring value matches the threshold, the microcontroller outputs a warning message; the computing module is configured in the server and the electrical It is sexually coupled to the vibration sensing module, the computing module includes a central processing unit, and the central processing unit receives warning messages.

Furthermore, in the server with vibration sensing function, the vibration sensing module is disposed outside the shaft base of the cooling fan, and the accelerometer detects the vibration of the cooling fan through the outside of the shaft base.

Furthermore, in the server with vibration sensing function, the number of cooling fans and vibration sensing modules are multiple, and each vibration sensing module is respectively arranged outside the shaft base of one of the cooling fans .

Furthermore, the said server with vibration sensing function further includes a GPIO expansion board on which there is a general-purpose I/O integrated circuit. The general-purpose I/O integrated circuit is coupled to a plurality of vibration sensing modules. To identify any vibration sensing module that outputs a warning message, and transmit the warning message to the central processing unit.

Furthermore, the server with vibration sensing function further includes a motherboard and a GPIO expansion board that can be removably plugged into the motherboard. The central processing unit is configured on the motherboard, and the universal output and input products are The bulk circuit is configured on the GPIO expansion board, and the general I/O integrated circuit is coupled to the central processing unit through the GPIO expansion board and the motherboard.

Furthermore, in the server with vibration sensing function, a plurality of ports are configured on the GPIO expansion board, and the plurality of ports are coupled to the I/O integrated circuit, and each port is electrically coupled One of the vibration sensing modules makes the universal I/O integrated circuit electrically coupled to a plurality of microcontrollers.

Furthermore, the server with vibration sensing function further includes a motherboard and a USB expansion board. The central processing unit is configured on the motherboard, and the USB expansion board is locked to the motherboard and a plurality of cooling fans. In between, the USB expansion board is equipped with a second microcontroller, multiplexers, multiple ports, USB ports, power circuits, and multiple screws Each port is electrically coupled to one of the vibration sensing modules, and the multiplexer is coupled to a plurality of vibration sensing modules through a plurality of ports, so that the second microcontroller can recognize the task of outputting a warning message A vibration sensing module, and the second microcontroller transmits the warning message to the central processing unit through the USB port; the power circuit supplies power to the second microcontroller or the multiplexer through the USB port.

Furthermore, in the server with vibration sensing function, the vibration sensing module is disposed on a fan frame leaning on the cooling fan, and the accelerometer detects the vibration of the cooling fan through the fan frame.

Furthermore, in the server with vibration sensing function, the number of cooling fans is a large number, the vibration sensing module is arranged in a fan frame that carries one or each of the cooling fans, and the accelerometer is detected by the fan frame. Vibration of the cooling fan.

Furthermore, in the server with vibration sensing function, when the microcontroller continuously confirms that the monitored value matches the threshold within a certain period of time, the microcontroller outputs a warning message to the central processing unit.

Furthermore, in the server with vibration sensing function, the specific time is 10 seconds.

Furthermore, in the server with vibration sensing function, the unit of the monitoring value and the threshold value is acceleration.

Furthermore, in the server with vibration sensing function, when the central processing unit receives a warning message, the central processing unit outputs the warning message to the outside of the server, and displays the warning message on a screen or makes a beeper The buzzer makes a sound.

Furthermore, in the server with vibration sensing function, when the central processing unit receives a warning message, the central processing unit adjusts the rotation speed of the cooling fan.

When using the server with vibration sensing function of the present invention, the vibration sensing module can be selected directly (the vibration sensing module is arranged outside the shaft base of the cooling fan) or indirectly (the vibration sensing module Configured in the fan rack that carries the cooling fan) is coupled to the cooling fan. When used together with a microcontroller and an accelerometer, it can have the effect of automatic monitoring. Especially when the threshold set by the DIP switch is used, the user can By changing the state of the dip switch, the threshold setting in the microcontroller is further changed, so that the microcontroller can decide whether to send a warning signal after comparing the received monitoring value with the threshold. For this reason, an early warning can be actively issued before the cooling fan is about to be damaged, which can not only avoid the noise problem of abnormal vibration, ensure the durability of the storage module, but also avoid the damage of electronic equipment due to high temperature, and achieve the purpose of improving the safety of the server. .

In order to further understand the technology, means and effects of the present invention to achieve the intended purpose, please refer to the following detailed description and drawings of the present invention. I believe that the features and characteristics of the present invention can be obtained from this in-depth and specific understanding. However, the accompanying drawings are only provided for reference and illustration, and are not intended to limit the present invention.

10: Cooling fan

20: Vibration sensing module

21: Microcontroller

22: Accelerometer

23: DIP switch

24: Power circuit

30: Computing module

31: Central Processing Unit

32: Motherboard

33: PCIe slot

41: Fan Frame

50: GPIO expansion board

51: General purpose input and output integrated circuit

52: Port

521: Contact

53: Golden Finger

60: USB expansion board

61: Microcontroller

62: Multiplexer

63: Port

64: USB port

65: power circuit

66: Screw hole

Fig. 1 is a functional block diagram of the first embodiment of a server with vibration sensing function of the present invention; Fig. 2 is a schematic diagram of the appearance of a vibration sensing module of a server with vibration sensing function of the present invention; Figs. 3A and Figs. 3B is a structural configuration diagram of the first embodiment of the server with vibration sensing function of the present invention; 4 is a functional block diagram of the second embodiment of the server with vibration sensing function of the present invention; FIG. 5 is a configuration diagram of the GPIO expansion board of the server with vibration sensing function of the present invention; A structural configuration diagram of the second embodiment of a server with vibration sensing function; FIG. 7 is a functional block diagram of a third embodiment of a server with vibration sensing function of the present invention; FIG. 8 is a functional block diagram of the third embodiment of a server with vibration sensing function of the present invention The configuration diagram of the USB expansion board of the server; Figure 9 is the configuration diagram of the third embodiment of the server with vibration sensing function of the present invention; and Figures 10 to 12 are the servos with vibration sensing function of the present invention The configuration diagram of the fourth embodiment of the device.

The following is a specific embodiment to illustrate the implementation of the present invention. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied by other different specific examples, and various details in the specification of the present invention can also be modified and changed based on different viewpoints and applications without departing from the spirit of the present invention.

It should be noted that the structure, ratio, size, number of components, etc. shown in the drawings in this specification are only used to match the content disclosed in the specification for the understanding and reading of those familiar with this technology, and are not intended to limit the scope of the present invention. The limited conditions of implementation do not have any technical significance. Any structural modification, proportional relationship change, or size adjustment should fall within the scope of the present invention without affecting the effects that can be produced and the goals that can be achieved by the present invention. The technical content disclosed by the invention can be covered.

The technical content and detailed description of the present invention are described below in conjunction with the drawings.

Please refer to Figure 1 and Figure 2. 1 is a functional block diagram of the first embodiment of the server with vibration sensing function of the present invention; FIG. 2 is a schematic diagram of the appearance of the vibration sensing module of the server with vibration sensing function of the present invention.

The server 1 with vibration sensing function of the first embodiment of the present invention includes a cooling fan 10, a vibration sensing module 20 and a computing module 30. Wherein, the cooling fan 10 is disposed in the server 1. The vibration sensing module 20 is disposed in the server 1 and is physically coupled to the cooling fan 10. The physical coupling may include direct coupling (the vibration sensing module is arranged outside the shaft base of the cooling fan 10) or indirect coupling (the vibration sensing module is arranged on the fan frame that carries the cooling fan 10) , As detailed below. As shown in FIG. 2, the vibration sensing module 20 may be configured on a printed circuit board (PCB) which may include a microcontroller 21, an accelerometer 22, a dip switch 23, and a power circuit 24, and the vibration sensing module 20 The three pins connected to the outside world are +5V, GND, and Fail Output (F/O) for outputting warning signals. Among them, the power circuit 24 can supply electric energy to the microcontroller 21 and the accelerometer 22. The DIP switch 23 can easily change the set threshold value according to requirements. The threshold value is used by the microcontroller 21 as a basis for judging whether the fan is abnormal. Furthermore, the user can set the threshold according to the normal operation of the cooling fan 10 The measured value obtained as The basis for setting the threshold value of the dip switch 23. Regarding the revision of the threshold, the present invention technically adjusts the state of the DIP switch 23 (for example, the value of each bit is 0 or 1) to cause the threshold setting in the microcontroller 21 to be changed. The threshold.

In the first embodiment of the present invention, the adjustable coding specification of the DIP switch 23 is 4 bits, and the corresponding threshold value is as follows:

According to the actual experimental test results, if the threshold value of the cooling fan 10 during high-speed operation is set between 19m/s ² and 21m/s ² (corresponding to the g value measured by the accelerometer is about 2.04g), it will be The monitoring value determined that the cooling fan 10 is beginning to be damaged is between 30m/s ² and 40m/s ² (corresponding to the g value measured by the accelerometer is about 3.06g to 4.08g), and it is determined that the cooling fan 10 is damaged The monitoring value of is about 70m/s ² to 80m/s ² (corresponding to the g value measured by the accelerometer is about 7.14g to 8.16g).

The accelerometer 22 obtains a continuously updated monitoring value by detecting the vibration of the cooling fan 10. In the first embodiment of the present invention, the accelerometer 22 may be an accelerometer, and the unit of the monitoring value and the threshold value is acceleration (m/s ² ). The accelerometer 22 is also called accelerometer, accelerometer, acceleration sensor, gravitational acceleration sensor, etc., and is a device for measuring acceleration. The vibration phenomenon is often measured by a ceramic piezoelectric sensor or accelerometer. However, the basic principle of accelerometer is to obtain voltage and acceleration by measuring the dynamic conditions of the actual device. Compared with the remote sensing device, the accelerometer measures its own motion. One of the applications of the accelerometer is to measure Gravity (ie g value), especially used in accelerometers for gravimetric methods, such devices are called gravimeters. In addition, accelerometers and gyroscopes can also be used together in micro-electromechanical systems (MEMS) in inertial guidance systems.

The microcontroller 21 is coupled to the accelerometer 22 and the DIP switch 23. When the microcontroller 21 confirms that the monitored value matches the threshold value, the microcontroller 21 outputs a warning message. Furthermore, when the microcontroller 21 continuously confirms that the monitoring value matches the threshold value within a certain period of time, the microcontroller 21 outputs a warning message to the central processing unit 31 of the computing module 30. In the first embodiment of the present invention, the specific time is 10 seconds, but the present invention is not limited by this.

The arithmetic module 30 is configured in the server 1 and is electrically coupled to the vibration sensing module 20. The arithmetic module includes a central processing unit (CPU) 31. The central processing unit 31 receives warning messages for the central processing unit 31 to access Perform other follow-up processing.

Please refer to FIG. 3A and FIG. 3B, which are the structural configuration diagrams of the first embodiment of the server with vibration sensing function of the present invention, that is, the configuration diagram of a single cooling fan 10. 3A shows that the vibration sensing module 20 is disposed outside the shaft base of the cooling fan 10. The accelerometer 22 of the vibration sensing module 20 detects the vibration of the cooling fan 10 through the outside of the shaft base, that is, the vibration sensing module 20 can be directly coupled to the cooling fan 10. FIG. 3B shows that the vibration sensing module 20 is disposed on the fan frame 41 carrying the cooling fan 10. The accelerometer 22 of the vibration sensing module 20 detects the vibration of the cooling fan 10 through the fan frame 41, that is, the vibration sensing module 20 The cooling fan 10 can be indirectly coupled.

Please refer to Figure 4 to Figure 6. 4 is a functional block diagram of the second embodiment of the server with vibration sensing function of the present invention. Figure 5 shows the vibration sensing function of the present invention The configuration diagram of the GPIO expansion board of the server; and FIG. 6 is the structural configuration diagram of the second embodiment of the server with vibration sensing function of the present invention.

In the second embodiment of the present invention, the number of the heat dissipation fan 10 and the vibration sensing module 20 are multiple, and each vibration sensing module 20 is respectively disposed outside the shaft base of one of the heat dissipation fans 10. Furthermore, compared with the aforementioned first embodiment, the second embodiment of the present invention further includes a motherboard 32 and a GPIO expansion board 50, and the GPIO expansion board 50 is configured with a general purpose input and output integrated circuit (general purpose input and output integrated circuit). integrated circuit, GPIO IC) 51, multiple ports 52, and golden fingers 53. In the second embodiment of the present invention, the GPIO expansion board 50 may be called a PCIe GPIO card (PG card). Among them, the central processing unit 31 is configured on the motherboard 32, the general-purpose I/O integrated circuit 51 is configured on the GPIO expansion board 50, and the GPIO expansion board 50 is removably inserted into the PCIe slot 33 on the motherboard 32, and The general-purpose I/O integrated circuit 51 is coupled to the central processing unit 31 through the golden finger 53 of the GPIO expansion board 50 and the PCIe slot 33 of the motherboard 32. The plurality of ports 52 are coupled to the I/O integrated circuit 51, and each port 52 is used to electrically couple one of the vibration sensing modules 20, so that the universal I/O integrated circuit 51 is electrically coupled to the plurality of A microcontroller 21. In the second embodiment of the present invention, each connection port 52 has three contacts 521 corresponding to the three pins of the vibration sensing module 20 connected to the outside: +5V, GND, and F/O. The universal I/O integrated circuit 51 is coupled to a plurality of vibration sensing modules 20, and each vibration sensing module 20 corresponds to a different cooling fan 10. At this time, the universal I/O integrated circuit 51 can identify any of the warning messages that are output The vibration sensing module 20 further identifies the abnormal cooling fan 10, and then transmits a warning message to the central processing unit 31. The central processing unit 31 can adjust the rotation speed of the cooling fan 10 (for example, when the temperature conditions allow In the case of reducing the speed or stopping), the central processing unit 31 can also output a warning message to the outside of the server, and display the warning message on a screen or make a buzzer sound.

Please refer to Figure 7 to Figure 9. 7 is a functional block diagram of the third embodiment of the server with vibration sensing function of the present invention. FIG. 8 is a configuration diagram of the USB expansion board of the server with vibration sensing function of the present invention. 9 is a structural configuration diagram of the third embodiment of the server with vibration sensing function of the present invention.

The third embodiment of the present invention is substantially the same as the foregoing second embodiment, except that the third embodiment replaces the GPIO expansion board 50 of the foregoing second embodiment with a USB expansion board 60, as shown in FIGS. 7 and 8. The USB expansion board 60 is configured with a second microcontroller (ie, the microcontroller 61), a multiplexer 62, a plurality of connection ports 63, a USB connection port 64, a power circuit 65 and a plurality of screw holes 66. The plurality of connection ports 63 are coupled to the multiplexer 62, and each of the connection ports 63 is used to electrically couple one of the vibration sensing modules 20, so that the microcontroller 61 is electrically coupled to the plurality of microcontrollers 21. Furthermore, the microcontroller 61 may be a Flash MCU with 8 bits Flash Memory. In the third embodiment of the present invention, each port 63 has four contacts 631, and the corresponding pins are: +3.3V, +5V, GND, and F/O. The power circuit 65 can receive +5V through the USB port 64 and supply +3.3V to the microcontroller 61 or the multiplexer 62. The multiplexer 62 is coupled to a plurality of vibration sensing modules 20, and each vibration sensing module 20 corresponds to a different cooling fan 10. At this time, the microcontroller 61 can identify any vibration sensing module 20 that outputs a warning message. , To further identify the abnormal cooling fan 10, and then the microcontroller 61 transmits the warning message to the central processing unit 31 through the USB port 64, and the central processing unit 31 can adjust the rotation speed of the cooling fan 10 (for example, at the temperature If conditions permit, reduce the speed or stop), and the central processing unit 31 can also output a warning message to the outside of the server, as shown in The screen or buzzer makes a sound. Furthermore, the USB port 64 may include four pins: +5V, D-, D+, and ground (GND). In the third embodiment of the present invention, the USB expansion board 60 is fixed to the position between the main board 32 and the plurality of cooling fans 10 through a plurality of screw holes 66, as shown in FIG. 9.

Please refer to FIG. 10 to FIG. 12, which are the structural configuration diagrams of the fourth embodiment of the server with vibration sensing function of the present invention. The fourth embodiment of the present invention is substantially the same as the aforementioned first embodiment, except that the number of cooling fans 10 is a plurality, and the vibration sensing module 20 is disposed on the fan frame 41 that carries one of the cooling fans 10. That is, a single vibration sensing module 20 detects the vibration of a plurality of cooling fans 10 at the same time. The difference between FIG. 11 and FIG. 12 is only in the structure of the cooling fan 10 and the fan frame 41.

When using the server with vibration sensing function of the present invention, the vibration sensing module 20 can be selected directly (the vibration sensing module 20 is arranged outside the shaft base of the cooling fan 10) or indirectly (vibration sensing). The test module 20 is configured on the fan frame 41 carrying the cooling fan 10) is coupled to the cooling fan 10. When used together with the microcontroller 21 and the accelerometer 22, it can have the effect of automatic monitoring, especially when the finger dial is used. The threshold set by the switch 23, the user can change the state of the dip switch 23 (for example, the value of each bit is 0 or 1), and further change the setting of the threshold in the microcontroller 21, so that the microcontroller 21 It can be determined whether to send a warning signal after comparing the received monitoring value with the threshold value. For this reason, an early warning can be actively issued before the cooling fan 10 is about to be damaged, which can not only avoid the noise problem of abnormal vibration, ensure the durability of the storage module, but also avoid the damage of electronic equipment due to high temperature, so as to improve the safety of the server. purpose.

The above are only detailed descriptions and drawings of the preferred embodiments of the present invention. However, the features of the present invention are not limited to these, and are not intended to limit the present invention. The full scope of the present invention shall be within the scope of the following patent applications. As the criterion, all embodiments that conform to the spirit of the patent application of the present invention and similar changes should be included in the scope of the present invention. Anyone familiar with the art in the field of the present invention can easily think of changes or Modifications can be covered in the following patent scope of this case.

10: Cooling fan

20: Vibration sensing module

21: Microcontroller

22: Accelerometer

23: DIP switch

24: Power circuit

30: Computing module

31: Central Processing Unit

Claims (14)

A server with vibration sensing function includes: a cooling fan arranged in the server; a vibration sensing module arranged in the server, and including a cooling fan arranged on the outer surface of the cooling fan A printed circuit board, the vibration sensing module further includes a microcontroller, an accelerometer, and a dip switch disposed on the printed circuit board, wherein the dip switch can easily change and set a threshold value according to requirements, the The accelerometer obtains a continuously updated monitoring value by detecting the vibration of the cooling fan. The microcontroller is coupled to the accelerometer and the DIP switch. When the microcontroller confirms that the monitoring value matches the threshold, the microcontroller The device outputs a warning message; and an arithmetic module is disposed in the server and is electrically coupled to the vibration sensing module, the arithmetic module includes a central processing unit, and the central processing unit receives the warning message ; Wherein, the printed circuit board and the cooling fan are physically coupled and vibrate synchronously. For the server with vibration sensing function described in item 1 of the scope of patent application, wherein the vibration sensing module is arranged outside a shaft base of the cooling fan, and the accelerometer detects the power of the cooling fan through the outside of the shaft base vibration. For example, in the server with vibration sensing function described in item 1 of the scope of patent application, the number of the cooling fan and the vibration sensing module are multiple, and each of the vibration sensing modules is separately arranged in it An outside of a shaft seat of the cooling fan. As described in item 3 of the scope of patent application, the server with vibration sensing function further includes a universal I/O integrated circuit which is coupled to a plurality of the vibration sensing modules for identification Any one of the vibration sensing modules outputting the warning message, and transmitting the warning message to the central processing unit. As described in item 4 of the scope of patent application, the server with vibration sensing function further includes a motherboard and a GPIO expansion board removably plugged into the motherboard, and the central processing unit is configured on the host On the board, the general-purpose I/O integrated circuit is configured on the GPIO expansion board, and the general-purpose I/O integrated circuit is coupled to the central processing unit through the GPIO expansion board and the motherboard. For example, in the server with vibration sensing function described in item 5 of the scope of patent application, the GPIO expansion board is equipped with a plurality of ports, and the plurality of ports are coupled to the general-purpose I/O integrated circuit, and each The connection port is electrically coupled to one of the vibration sensing modules, so that the universal I/O integrated circuit is electrically coupled to a plurality of the microcontrollers. As described in item 4 of the scope of patent application, the server with vibration sensing function further includes a motherboard and a USB expansion board. The central processing unit is configured on the motherboard, and the USB expansion board is locked to the Between the motherboard and the plurality of cooling fans, the USB expansion board is configured with a second microcontroller, a multiplexer, a plurality of ports, a USB port, a power circuit and a plurality of screw holes, each The port is electrically coupled to one of the vibration sensing modules, and the multiplexer is coupled to a plurality of the vibration sensing modules through the plurality of ports to enable the second microcontroller to identify and output the Any one of the vibration sensing modules of a warning message, and the second microcontroller transmits the warning message to the central processing unit through the USB port; the power circuit supplies power to the second micro through the USB port The controller or the multiplexer. For the server with vibration sensing function described in claim 1, wherein the vibration sensing module is disposed on a fan frame that carries the cooling fan, and the accelerometer detects the power of the cooling fan through the fan frame. vibration. For the server with vibration sensing function described in item 1 of the scope of the patent application, wherein the number of the cooling fans is a plurality, and the vibration sensing module is disposed on a fan that carries one or each of the cooling fans The accelerometer detects the vibration of the cooling fan through the fan frame. For the server with vibration sensing function described in item 1 of the scope of patent application, wherein, when the microcontroller continuously confirms that the monitoring value matches the threshold value within a certain period of time, the microcontroller outputs the warning Message to the central processing unit. For the server with vibration sensing function described in item 9 of the scope of patent application, the specific time is 10 seconds. For the server with vibration sensing function described in item 1 of the scope of patent application, the unit of the monitoring value and the threshold value is acceleration. For example, the server with vibration sensing function described in item 1 of the scope of patent application, wherein, when the central processing unit receives the warning message, the central processing unit outputs the warning message to the outside of the server and displays the Warning message on a screen or make a buzzer sound. For example, in the server with vibration sensing function described in claim 1, wherein when the central processing unit receives the warning message, the central processing unit adjusts the rotation speed of the cooling fan.

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