CN216118761U

CN216118761U - Temperature monitoring circuit and electronic equipment

Info

Publication number: CN216118761U
Application number: CN202122761067.5U
Authority: CN
Inventors: 徐承斌
Original assignee: Beijing L&s Lancom Platform Tech Co ltd
Current assignee: Beijing L&s Lancom Platform Tech Co ltd
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-03-22
Anticipated expiration: 2031-11-11

Abstract

The application provides a temperature monitoring circuit and electronic equipment. The circuit comprises an I/O chip; the CPU is electrically connected with the I/O chip and comprises a special mode register and an IA32 register, a first temperature value is stored in a first address of the special mode register, a second temperature value is stored in a second address of the IA32 register, and the first temperature value and the second temperature value are both used for representing the temperature of the CPU. The temperature monitoring circuit comprises an I/O chip and a CPU, the CPU comprises a special mode register and an IA32 register, a first temperature value is stored in a first address of the special mode register, a second temperature value is stored in a second address of the IA32 register, and the first temperature value and the second temperature value are used for representing the temperature of the CPU. The temperature of the CPU can be accurately detected.

Description

Temperature monitoring circuit and electronic equipment

Technical Field

The application relates to the field of electronic circuits, in particular to a temperature monitoring circuit and electronic equipment.

Background

In modern electronic equipment, the rise and fall of the working temperature reflect the change of the running state and a plurality of physical characteristics of the equipment, and the abnormal running or fault of the electronic equipment usually shows the abnormal change of the temperature; and also cause damage to the equipment. Therefore, the monitoring of the operating temperature of the electronic equipment is the most effective and most economic means for the safety monitoring of the equipment, and has great significance for the safety operation of the equipment.

In the prior art, a supio (super io) chip is connected with a temperature sensor to measure the temperature of a system and the temperature of a CPU, and then the corresponding fan speed is controlled to cool according to temperature data, so as to finally realize that equipment works at a proper temperature.

In actual work, the accuracy correlation between the collected CPU temperature and the installation position of the CPU temperature sensor is large. There is a possibility that the detected CPU temperature is lower than the actual temperature due to inaccuracy of the temperature sensor mounting position of the CPU position.

Therefore, the temperature of the system is much higher than the temperature of the CPU in the test process, and the longer the time is, the larger the temperature difference value is, so that the CPU fan cannot be controlled to reach the required rotating speed for effective heat dissipation. If the tester fails to find that the temperature of the CPU in the device is too high in time, the CPU can be damaged.

SUMMERY OF THE UTILITY MODEL

The application mainly aims to provide a temperature monitoring circuit and electronic equipment to solve the problem that the accuracy of the temperature of a CPU (central processing unit) measured by connecting a temperature sensor with a supio chip in the prior art is low.

In order to achieve the above object, according to one aspect of the present application, there is provided a temperature monitoring circuit including: an I/O chip; the CPU is electrically connected with the I/O chip and comprises a special mode register and an IA32 register, a first temperature value is stored in a first address of the special mode register, a second temperature value is stored in a second address of the IA32 register, and the first temperature value and the second temperature value are both used for representing the temperature of the CPU.

Further, the circuit further comprises: and the CPU temperature monitor is electrically connected with the I/O chip and is used for monitoring the temperature of the CPU.

Further, the circuit further comprises: and the mainboard temperature monitor is electrically connected with the I/O chip and is used for monitoring the temperature of the I/O chip.

Furthermore, a CPU cooling fan interface is integrated on the I/O chip, and the CPU cooling fan interface is used for externally connecting a CPU cooling fan.

Furthermore, the CPU cooling fan interface has four pins, which are a first ground pin, a first power pin, a first speed detection pin, and a first speed control pin.

Furthermore, a motherboard cooling fan interface is integrated on the I/O chip, and the motherboard cooling fan interface is used for externally connecting a motherboard cooling fan.

Furthermore, the motherboard cooling fan interface has four pins, which are a second ground pin, a second power pin, a second rotation speed detection pin, and a second speed control pin.

Further, the model of the special mode register is MSR _ timeout _ get.

Further, the model of the IA32 register is IA32_ THERM _ STATUS.

According to another aspect of the present application, there is provided an electronic device including any one of the temperature monitoring circuits.

According to the technical scheme, the temperature monitoring circuit comprises an I/O chip and a CPU, the CPU comprises a special mode register and an IA32 register, a first temperature value is stored in a first address of the special mode register, a second temperature value is stored in a second address of the IA32 register, and the first temperature value and the second temperature value are used for representing the temperature of the CPU. The temperature of the CPU can be accurately detected. The hardware temperature of the electronic equipment can be monitored more accurately, the loss caused by the fact that testing personnel cannot find temperature abnormity due to errors and damage of hardware and electronic components of the electronic equipment is avoided, unnecessary loss is greatly reduced for the testing personnel and working units effectively, and labor cost, time cost and purchase cost are saved indirectly.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:

FIG. 1 shows a temperature monitoring circuit diagram according to an embodiment of the application.

Wherein the figures include the following reference numerals:

10. an I/O chip; 20. a CPU; 21. a special mode register; 22. an IA32 register; 30. a CPU temperature monitor; 40. a mainboard temperature monitor; 11. a CPU cooling fan interface; 12. and a main board heat radiation fan interface.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. Also, in the specification and claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element or "connected" to the other element through a third element.

For convenience of description, some terms or expressions referred to in the embodiments of the present application are explained below:

MSR (model Specific registers): the special mode register is used for setting the working environment of the CPU and marking the working state of the CPU, and comprises temperature control, performance monitoring and the like.

As introduced in the background art, the CPU temperature measured by connecting the temperature sensor to the supio chip in the prior art has low accuracy, and in order to solve the problem that the CPU temperature measured by connecting the temperature sensor to the supio chip has low accuracy, embodiments of the present application provide a temperature monitoring circuit and an electronic device.

In an exemplary embodiment of the present application, there is provided a temperature monitoring circuit, as shown in fig. 1, including:

an I/O chip 10;

the CPU20 is electrically connected to the I/O chip 10, and includes a special mode register 21 and an IA32 register 22, wherein a first address of the special mode register 21 stores a first temperature value, a second address of the IA32 register 22 stores a second temperature value, and both the first temperature value and the second temperature value are used for representing the temperature of the CPU 20.

Specifically, the model of the I/O chip may be selected to SUPIO NCT 6776F. Of course, those skilled in the art can select an appropriate type of I/O chip according to actual requirements, which is not limited herein.

Specifically, the model of the CPU may be selected from: intel C3558, Intel C3758, etc. Of course, those skilled in the art may select a CPU of an appropriate model according to actual requirements, which is not limited herein.

In the above scheme, the temperature monitoring circuit includes an I/O chip and a CPU, the CPU includes a special mode register and an IA32 register, a first address of the special mode register stores a first temperature value, a second address of the IA32 register stores a second temperature value, and the first temperature value and the second temperature value are used to represent the temperature of the CPU. The temperature of the CPU can be accurately detected. The hardware temperature of the electronic equipment can be monitored more accurately, the loss caused by the fact that testing personnel cannot find temperature abnormity due to errors and damage of hardware and electronic components of the electronic equipment is avoided, unnecessary loss is greatly reduced for the testing personnel and working units effectively, and labor cost, time cost and purchase cost are saved indirectly.

In an embodiment of the present application, as shown in fig. 1, the circuit further includes a CPU temperature monitor 30, and the CPU temperature monitor 30 is electrically connected to the I/O chip 10 for monitoring the temperature of the CPU.

In another embodiment of the present application, as shown in fig. 1, the circuit further includes: and a motherboard temperature monitor 40 electrically connected to the I/O chip 10 for monitoring the temperature of the I/O chip 10.

In another embodiment of the present application, as shown in fig. 1, a CPU heat dissipation fan interface 11 is integrated on the I/O chip 10, and the CPU heat dissipation fan interface 11 is used for externally connecting a CPU heat dissipation fan.

In another embodiment of the present application, as shown in fig. 1, the CPU thermal fan interface 11 has four pins, which are a first ground pin, a first power pin, a first speed detection pin and a first speed control pin.

In another embodiment of the present application, as shown in fig. 1, a motherboard heat dissipation fan interface 12 is integrated on the I/O chip 10, and the motherboard heat dissipation fan interface 12 is used for externally connecting a motherboard heat dissipation fan.

In another embodiment of the present application, as shown in fig. 1, the motherboard cooling fan interface 12 has four pins, which are a second ground pin, a second power pin, a second speed detection pin, and a second speed control pin.

In a specific embodiment of the present application, the special mode register has a model number of MSR _ timeout _ get.

In a specific embodiment of the present application, the type of the IA32 register is IA32_ THERM _ STATUS.

Specifically, the temperature monitoring circuit in the scheme is adopted to collect the temperature of the CPU, and the method comprises the following specific steps:

step 1: adding corresponding modules and paths in the I/O chip kernel, so that a first TEMPERATURE value is stored in a first address of MSR _ TEMPERATURE _ TRAGET, and a second TEMPERATURE value is stored in a second address of IA32_ THERM _ STATUS;

step 2: the first temperature value stored in the first address and the second temperature value stored in the second address are differentiated to obtain the temperature of the CPU;

and step 3: and comparing the temperature of the CPU obtained by the difference with the temperature obtained by directly adopting the CPU temperature sensor, and further assisting in judging whether the installation position of the CPU temperature sensor is accurate or not.

Another exemplary embodiment of the present application provides an electronic device including any one of the above-described temperature monitoring circuits. The temperature monitoring circuit in the electronic equipment comprises an I/O chip and a CPU, wherein the CPU comprises a special mode register and an IA32 register, a first temperature value is stored in a first address of the special mode register, a second temperature value is stored in a second address of the IA32 register, and the first temperature value and the second temperature value are used for representing the temperature of the CPU. The temperature of the CPU can be accurately detected. The hardware temperature of the electronic equipment can be monitored more accurately, the loss caused by the fact that testing personnel cannot find temperature abnormity due to errors and damage of hardware and electronic components of the electronic equipment is avoided, unnecessary loss is greatly reduced for the testing personnel and working units effectively, and labor cost, time cost and purchase cost are saved indirectly.

From the above description, it can be seen that the above-described embodiments of the present application achieve the following technical effects:

1) the temperature monitoring circuit comprises an I/O chip and a CPU, the CPU comprises a special mode register and an IA32 register, a first address of the special mode register stores a first temperature value, a second address of the IA32 register stores a second temperature value, and the first temperature value and the second temperature value are used for representing the temperature of the CPU. The temperature of the CPU can be accurately detected. The hardware temperature of the electronic equipment can be monitored more accurately, the loss caused by the fact that testing personnel cannot find temperature abnormity due to errors and damage of hardware and electronic components of the electronic equipment is avoided, unnecessary loss is greatly reduced for the testing personnel and working units effectively, and labor cost, time cost and purchase cost are saved indirectly.

2) According to the electronic equipment, the temperature monitoring circuit comprises an I/O chip and a CPU, the CPU comprises a special mode register and an IA32 register, a first temperature value is stored in a first address of the special mode register, a second temperature value is stored in a second address of the IA32 register, and the first temperature value and the second temperature value are used for representing the temperature of the CPU. The temperature of the CPU can be accurately detected. The hardware temperature of the electronic equipment can be monitored more accurately, the loss caused by the fact that testing personnel cannot find temperature abnormity due to errors and damage of hardware and electronic components of the electronic equipment is avoided, unnecessary loss is greatly reduced for the testing personnel and working units effectively, and labor cost, time cost and purchase cost are saved indirectly.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A temperature monitoring circuit, comprising:

an I/O chip;

the CPU is electrically connected with the I/O chip and comprises a special mode register and an IA32 register, a first temperature value is stored in a first address of the special mode register, a second temperature value is stored in a second address of the IA32 register, and the first temperature value and the second temperature value are both used for representing the temperature of the CPU.

2. The circuit of claim 1, further comprising:

and the CPU temperature monitor is electrically connected with the I/O chip and is used for monitoring the temperature of the CPU.

3. The circuit of claim 1, further comprising:

and the mainboard temperature monitor is electrically connected with the I/O chip and is used for monitoring the temperature of the I/O chip.

4. The circuit of claim 1, wherein a CPU heat dissipation fan interface is integrated on the I/O chip, and the CPU heat dissipation fan interface is configured to be externally connected to a CPU heat dissipation fan.

5. The circuit of claim 4, wherein the CPU cooling fan interface has four pins, a first ground pin, a first power pin, a first speed detection pin, and a first speed control pin.

6. The circuit of claim 1, wherein a motherboard fan-out interface is integrated on the I/O chip, the motherboard fan-out interface being configured to externally connect to a motherboard fan-out.

7. The circuit of claim 6, wherein the motherboard fan interface has four pins, a second ground pin, a second power pin, a second speed detection pin, and a second speed control pin.

8. The circuit of any of claims 1 to 7, wherein the model number of the special mode register is MSR _ TEMPERATURE _ TRAGET.

9. The circuit of any of claims 1 to 7, wherein the IA32 register has a model number IA32_ THERM _ STATUS.

10. An electronic device characterized by comprising the temperature monitoring circuit of any one of claims 1 to 9.