CN1749923A - Active control computer system heat radiation and silencing method - Google Patents
Active control computer system heat radiation and silencing method Download PDFInfo
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- CN1749923A CN1749923A CN 200510091411 CN200510091411A CN1749923A CN 1749923 A CN1749923 A CN 1749923A CN 200510091411 CN200510091411 CN 200510091411 CN 200510091411 A CN200510091411 A CN 200510091411A CN 1749923 A CN1749923 A CN 1749923A
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Abstract
The actively controlled computer system heat radiation and silencing method includes the following steps: setting in the BIOS one CPU fan temperature monitoring value based on system load and environment temperature, making the CPU fan in low speed running state of voltage Vl when the CPU core temperature is lower than the set temperature monitoring value, and making the CPU fan in hight speed running state of voltage Vh when the CPU core temperature is higher than the set temperature monitoring value. The present invention can meet the system heat radiation requirement while lower system noise, and this can provide the user with computer product with sable performance and high safety and create comfortable silent work environment.
Description
Technical field
The invention belongs to computer application field, relate in particular to a kind of computer system and realize heat radiation and quiet method.
Background technology
At present, along with electron device in the computing machine develops towards high-frequency high-speed, the heat of corresponding generation is also more and more, causes the calculating built-in temperature constantly to raise, and requires computer system that bigger ventilation is arranged.Especially along with the issue of the CPU of the FMB2 of Intel company, the power of CPU is more and more higher.Industry is exactly the heating radiator that is sticked on its surface to the radiating treatment of CPU, and on the top of its heating radiator or side one fan be set carry out forced convertion.In order to satisfy the heat radiation requirement of golf calorific value CPU, the rotating speed of its radiator fan is very high, has brought serious noise problem.Simultaneously, along with the requirement of people to display technique, computing machine is also more and more higher with the power of display card, owing to be subjected to the restriction in common machine box structure layout, this high-power display card often needs to adopt the fan of forced convertion to help the heat radiation of heater members on the display card.And on display card, can only adopt low bore, the small fan of ultrahigh rotating speed, its high frequency noise also more and more become the main noise source of computing machine; Along with the raising of computing power, the heating power of parts such as the hard disk that adopts in the computer system, memory bar, CD-ROM drive is also more and more higher, has brought the problem of computing machine machine system heat radiation.
Existing computing machine on the market, adopt the cpu heat of overhead fan mostly, fan has constant rotational speed, the function of system's air-out of power supply fan double as and power supply apparatus heat radiation, this cooling system often need design according to the severe environmental conditions and the computing machine peak power of computing machine, to reach the safety standard of national regulation.Therefore, the rotating speed of CPU radiator fan and power supply fan need move under the condition of the maximum speed of setting always, but under many circumstances, computing machine is not in worst working environment and fully loaded running status always, during this time, the heat-sinking capability of computer system is superfluous, is in the cpu fan and the power supply fan that run up simultaneously always and has brought serious noise problem.Also add system fan on the cabinet rear panel in the computer system that has and help system radiating, the active heat removal small fan is also arranged on the high power display card, when satisfying the system radiating requirement, the problem of noise is also more and more outstanding.A few days ago, also there is pair computer CPU fan to carry out the technical scheme (Chinese patent: 99123191.0,01125926.4) of rotating speed control.But these technology are just come fan in the control computer according to the temperature of CPU.And in the computer system, except that cpu fan, system fan, power supply fan, display card radiator fan and system ventilation windage be the lumping weight noise source of wanting all.
Summary of the invention
The object of the present invention is to provide a kind of ACTIVE CONTROL formula computer system heat radiation and silencing method, when satisfying the system radiating requirement, reduce system noise as far as possible, to the user provide stable performance, safety computer product, the working environment that Creating Comfort is quiet.
For achieving the above object, the invention provides a kind of ACTIVE CONTROL formula computer system heat radiation and silencing method, it is characterized in that step is as follows:
Be provided with a cpu fan monitoring temperature value according to system load and environment temperature in system bios, the core cpu temperature is during less than the monitoring temperature set, and cpu fan is in the slow running state of V1; The core cpu temperature makes cpu fan be in the high-speed cruising state of Vh during greater than the monitoring temperature set.
Described ACTIVE CONTROL formula computer system heat radiation and silencing method also comprises the steps: to set one high and one low two temperature values, and the power supply intake air temperature is during less than low temperature value, and power supply fan is fixedly to slowly run; The power supply intake air temperature is during greater than high temperature value, and power supply fan is with fixing high-speed rotation; In the time of in the middle of two temperature, the pass of rotating speed and temperature is a linear relationship.
Described ACTIVE CONTROL formula computer system heat radiation and silencing method, the sensing of power supply intake air temperature are to establish thermistor near power supply air inlet place on power supply circuit board, and this thermistor is connected in series with between power supply fan and the power circuit.
Described ACTIVE CONTROL formula computer system heat radiation and silencing method also comprises the steps: to set up a system fan, sets one high and one low two temperature values, and system fan air intake vent temperature is during less than low temperature value, and system fan is fixedly to slowly run; System fan air intake vent temperature is during greater than high temperature value, and system fan is with fixing high-speed rotation; In the time of in the middle of two temperature, the pass of rotating speed and temperature is a linear relationship.
Described ACTIVE CONTROL formula computer system heat radiation and silencing method, the sensing of system fan air intake vent temperature are to be provided with thermistor on fan body, and this thermistor tandem is between fan and the mainboard to its power supply.
As from the foregoing, the present invention controls active fans all in the computer system, according to the ventilation of system loading and the real-time initialization system of system environments temperature, to reach the purpose of system's temperature control heat radiating and mute.
This method to computer system according to system load and environment temperature dispel the heat, quiet design.System ventilation amount when being in different operating load and varying environment temperature designs a calculating machine, promptly when computing machine is in lower powered running status, the also corresponding minimizing of ventilation that total system requires, when computing machine is in powerful running status, the also corresponding increase of ventilation that total system requires; Simultaneously, the ventilation of system is corresponding increase along with the increase of environment temperature, rationally the heat radiation requirement of resolution system.
ACTIVE CONTROL formula computer system heat radiation and silencing method provided by the invention, the back upper place is fixed with power supply, AGP video card, PCI Mezzanine Card, central processing unit (CPU) and mainboard, ACTIVE CONTROL formula cpu heat in the cabinet, and radiator fan is controlled by the cpu temperature supervisory circuit on the mainboard.
Near power supply air inlet place one thermistor is set on the circuit board of described ACTIVE CONTROL formula power supply, this thermistor is connected in series with between power supply fan and the power circuit, the temperature that is used for the induction power supply air intake, when the temperature variation of thermistor induction, the corresponding change of its resistance, and then the supply voltage of change power supply fan is controlled the rotating speed of power supply fan.
The present invention can also be provided with a system radiating fan on the postnotum at heating radiator rear, this fan is powered to it by mainboard, and fan body is provided with thermistor, and tandem is between fan and circuit.When the temperature variation of thermistor induction, the also corresponding change of its resistance sizes, and make its rotation speed of the fan that corresponding change take place by the circuit setting of fan inside.
Or/and the environment temperature that system fan air outlet temperature is come characterization system inside, the environment temperature of internal system is subjected to the influence of two aspect factors to native system: the load of residing external environment situation of computer system and inside computer system heater members by the monitoring power supply air inlet.Therefore set power supply fan in real time or/and the rotating speed of system fan decides the whole ventilation of system according to the interior environment temperature of system, realized coming the pattern of design system heat-sinking capability according to the actual behaviour in service of computing machine, under corresponding heat radiation requires, there are corresponding ventilation and corresponding rotation speed of the fan in system, reduce fan noise on the whole, reached the problem of balanced system heat radiation and noise.Overcome the problem that requires the design system ventilation in the existing computer system according to the maximum heat radiation of system, made silencing computer become possibility.
CPU is the critical component that dispels the heat in the computer system, and the fan noise of cpu heat also is one of main noise source of system.The core cpu temperature has reflected the heating situation of power device in the computer system.Preset temperature sensor in CPU core, its size is obtained by the cpu temperature testing circuit of mainboard, in system bios, be provided with cpu fan monitoring temperature value, the working temperature of CPU is divided into two zones, the core cpu temperature value that system obtains the cpu temperature testing circuit by mainboard with preset cpu fan monitoring temperature value relatively, in different temperature ranges, cpu fan is in low the commentaries on classics and high the commentaries on classics under the different rotating speeds.Under most of situation, the CPU that unifies of department of computer science is in low, moderate duty condition always, by cpu fan monitoring temperature value rationally is set, can guarantee that CPU safety operate as normal makes cpu fan be in slow-speed of revolution running status simultaneously as far as possible, reduces the noise of system greatly.
Description of drawings
Fig. 1 is system of the present invention control block diagram;
Fig. 2 is cpu fan rotating speed and cpu temperature relation;
Fig. 3 is temperature relation in power supply fan rotating speed of the present invention and the system.
Embodiment
In conjunction with reference to Fig. 1, be system of the present invention control block diagram.Because the installation site of power supply of the present invention, CPU and system fan belongs to known technology substantially, for avoiding loaded down with trivial details, the present invention does not recommend its structural drawing.
Be provided with thermistor near power supply air inlet place on the power supply circuit board, be used for the temperature of induction power supply air intake, this thermistor is by circuit and power supply fan polyphone, when the temperature variation of thermistor induction, the also corresponding change of its resistance sizes, and then the supply voltage of change power supply fan is controlled the rotating speed of power supply fan.
For strengthening the computer system cross-ventilation, this example also is provided with a system radiating fan on the cabinet postnotum, the air in the cabinet is drawn outside cabinet, to reach the effect of system air convection current.Be provided with thermistor on the fan body of system fan equally, be connected in series with between this fan and the mainboard, be used for the temperature of induction system to its power supply.When the temperature variation of thermistor induction, the also corresponding change of its resistance sizes makes its rotation speed of the fan that corresponding change take place.
How the power circuit for computer plate near power supply air inlet place thermistor is installed and on the cabinet postnotum installation system radiator fan be one than proven technique, those skilled in the art can understand and imagine easily.
For high-power video card, can adopt the passive heat radiation device to dispel the heat, avoid using small-bore radiator fan, reduced the noise source of system.
As shown in Figure 2, native system is adjusted the rotating speed of cpu fan by the monitoring CPU DIE Temperature, and the core cpu temperature has reflected the heat dissipating state of power maximum device in the computer system.As shown in Figure 3, cpu fan adopts two-stage control, and low speed and at a high speed, when core cpu temperature during less than the monitoring temperature Tj that sets, by voltage setting circuit, adopts the low voltage drive cpu fan, makes cpu fan be in the slow running state of V1; Use the raising of power along with CPU, the DIE Temperature of CPU also constantly increases, and when the detected core cpu temperature of cpu temperature testing circuit during greater than the monitoring temperature Tj that sets, passes through voltage setting circuit, adopt full voltage to drive cpu fan, make cpu fan be in the high-speed cruising state of Vh.
As shown in Figure 1, native system comes monitoring power supply air inlet and system fan air outlet temperature by the temperature sensor on power module and the system fan, with the environment temperature of characterization system inside.The environment temperature of internal system is subjected to the influence of two aspect factors: the load of residing external environment situation of computer system and inside computer system heater members.When computer system is in underload or lower ambient temperature, the air intake vent temperature of the intake air temperature of power supply fan and system fan is less than T1 shown in Figure 3, at this moment, power supply fan and system fan all are in the minimum speed state of V1, increase along with system loading, the also corresponding increase of temperature in the system, power supply fan and system fan improve the driving voltage of fan according to different separately voltage automatic circuits, and then improving the rotating speed of fan, rotating speed improves the relation that raises with temperature as shown in Figure 3.When temperature in the system during greater than T2, fan has also reached the maximum (top) speed Vh of system design, to satisfy the requirement of system radiating.Therefore the rotating speed of setting power supply fan and system fan in real time according to the interior environment temperature of system decides the whole ventilation of system, realized coming the pattern of design system heat-sinking capability according to the actual behaviour in service of computing machine, under corresponding heat radiation requires, there are corresponding ventilation and corresponding rotation speed of the fan in system, reduce fan noise on the whole, reached the problem of balanced system heat radiation and noise.Overcome the problem that requires the design system ventilation in the existing computer system according to the maximum heat radiation of system, made silencing computer become possibility.
The technology that the present invention adopts CPU and power supply to be controlled by temperature can realize purpose of the present invention basically.Another technical characterstic is to set up in cabinet and to put a system fan, and also can control according to temperature according to needing; Perhaps make one of them controlled by temperature in power supply and system fan selectively, another then plays conventional fan.Therefore CPU described above, power supply and system fan are controlled by temperature, and above-mentioned explanation is just with helping to understand technology contents of the present invention, rather than is used for limiting claim scope of the present invention.
Advantage of the present invention is:
1, come the pattern of design system heat-sinking capability according to the actual behaviour in service of computing machine, under corresponding heat radiation required, there were corresponding ventilation and corresponding rotation speed of the fan in system, has reduced fan noise on the whole, had reached the problem of balanced system heat radiation and noise.Overcome the problem that requires the design system ventilation in the existing computer system according to the maximum heat radiation of system, made silencing computer become possibility.
2, when satisfying computer system heat radiation, can reduce system noise significantly, as shown in table 1, adopt the computing machine of ACTIVE CONTROL formula heat radiating and mute method, the noise of its cabinet front, side and the back 5～7dB that descended.Simultaneously, the 0.5 meter far away local noise in main frame front that adopts ACTIVE CONTROL formula heat radiating and mute method has reached the quiet effect of system fully below 28dB.Following noise contrast test carries out on same Computer Systems Organization, and environment temperature is 30 ℃, and the computing machine load is 70%.
The contrast of table 1 computer system noise
| Front noise (dB) | Side noise (dB) | Back noise (dB) | |
| Adopt the computing machine of temperature control heat radiating and mute method | 27.8 | 30.8 | 33.3 |
| General computer system | 33.7 | 36 | 40.1 |
3, to high-power display card, can adopt the heat radiation of passive heat radiation sheet, removed the small-bore high rotating speed fan on the display card heat radiator, reduced the noise source of system.
4, by the guiding of system fan and power supply fan to air-flow around the cpu heat, make the air intake gas temperature of cpu heat descend greatly, in identical system architecture, adopt common cpu heat just can satisfy the heat radiation requirement, make the cost of whole case radiation system reduce greatly, improved the economy of complete machine.
5, the power supply fan in the computer system, cpu fan and system fan all are in low power state in the most of the time, reduced the power consumption of complete machine, the serviceable life of having improved fan.
Claims (6)
1, a kind of ACTIVE CONTROL formula computer system heat radiation and silencing method is characterized in that step is as follows:
Be provided with a cpu fan monitoring temperature value according to system load and environment temperature in system bios, the core cpu temperature is during less than the monitoring temperature set, and cpu fan is in the slow running state of V1; The core cpu temperature makes cpu fan be in the high-speed cruising state of Vh during greater than the monitoring temperature set.
2, ACTIVE CONTROL formula computer system heat radiation and silencing method according to claim 1, it is characterized in that, also comprise the steps: temperature sensing device to be set at power supply fan air inlet place, the temperature that is used for the induction power supply air intake is controlled the rotating speed of power supply fan according to the variation of power supply EAT.
3, ACTIVE CONTROL formula computer system heat radiation and silencing method according to claim 2 is characterized in that, sets one high and one low two temperature values, and the power supply intake air temperature is during less than low temperature value, and power supply fan is fixedly to slowly run; The power supply intake air temperature is during greater than high temperature value, and power supply fan is with fixing high-speed rotation; In the time of in the middle of two temperature, the pass of rotating speed and temperature is a linear relationship.
4, ACTIVE CONTROL formula computer system heat radiation and silencing method according to claim 2, it is characterized in that, described temperature sensing device is provided in a side of the thermistor at close power supply air inlet place on the power supply circuit board, and this thermistor is connected in series with between power supply fan and the power circuit.
5, ACTIVE CONTROL formula computer system heat radiation and silencing method according to claim 1 and 2, it is characterized in that, also comprise the steps: to be provided with a system fan, set one high and one low two temperature values, system fan air intake vent temperature is during less than low temperature value, and system fan is fixedly to slowly run; System fan air intake vent temperature is during greater than high temperature value, and system fan is with fixing high-speed rotation; In the time of in the middle of two temperature, the pass of rotating speed and temperature is a linear relationship.
6, ACTIVE CONTROL formula computer system heat radiation and silencing method according to claim 5, it is characterized in that, the sensing of described system fan air intake vent temperature is to be provided with thermistor on fan body, and this thermistor tandem is between fan and the mainboard to its power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510091411 CN1749923A (en) | 2002-09-12 | 2002-09-12 | Active control computer system heat radiation and silencing method |
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| CN 200510091411 CN1749923A (en) | 2002-09-12 | 2002-09-12 | Active control computer system heat radiation and silencing method |
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| CNA021316635A Division CN1482524A (en) | 2002-09-12 | 2002-09-12 | Heat radiating and mute method for active controlled computer system |
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| CN1749923A true CN1749923A (en) | 2006-03-22 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629137A (en) * | 2013-12-02 | 2014-03-12 | 国网河南省电力公司南阳供电公司 | Noise reduction processing method for DCS cabinet |
| CN105465027A (en) * | 2015-12-31 | 2016-04-06 | 苏州壹达生物科技有限公司 | Device for intelligently controlling linear rotating speed of heat radiating fan |
| CN105822578A (en) * | 2015-01-09 | 2016-08-03 | 中国长城计算机深圳股份有限公司 | Multi-mode fan control circuit, cooling device and electronic equipment |
| CN109253099A (en) * | 2017-07-13 | 2019-01-22 | 中兴通讯股份有限公司 | A kind of base station control method for fan and device |
| CN109253105A (en) * | 2018-10-23 | 2019-01-22 | 深圳市海勤科技有限公司 | A kind of meeting wisdom energy cooling fan method and its system |
| CN110134208A (en) * | 2019-04-08 | 2019-08-16 | 上海闻泰信息技术有限公司 | Rotation speed of the fan Automatic adjustment method, system and server |
| CN110557929A (en) * | 2019-07-31 | 2019-12-10 | 苏州浪潮智能科技有限公司 | whole cabinet server |
| CN110778516A (en) * | 2019-09-21 | 2020-02-11 | 深圳市奥拓电子股份有限公司 | Fan speed regulation method and device of display screen controller and storage medium |
| CN113608604A (en) * | 2021-07-13 | 2021-11-05 | 华东计算技术研究所（中国电子科技集团公司第三十二研究所） | Loongson processor-based computer power management system, method, medium, and device |
-
2002
- 2002-09-12 CN CN 200510091411 patent/CN1749923A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629137A (en) * | 2013-12-02 | 2014-03-12 | 国网河南省电力公司南阳供电公司 | Noise reduction processing method for DCS cabinet |
| CN105822578A (en) * | 2015-01-09 | 2016-08-03 | 中国长城计算机深圳股份有限公司 | Multi-mode fan control circuit, cooling device and electronic equipment |
| CN105822578B (en) * | 2015-01-09 | 2017-09-08 | 中国长城科技集团股份有限公司 | A kind of multi-mode fan control circuitry, heat abstractor and electronic equipment |
| CN105465027A (en) * | 2015-12-31 | 2016-04-06 | 苏州壹达生物科技有限公司 | Device for intelligently controlling linear rotating speed of heat radiating fan |
| CN109253099A (en) * | 2017-07-13 | 2019-01-22 | 中兴通讯股份有限公司 | A kind of base station control method for fan and device |
| CN109253099B (en) * | 2017-07-13 | 2021-08-03 | 中兴通讯股份有限公司 | Base station fan control method and device |
| CN109253105A (en) * | 2018-10-23 | 2019-01-22 | 深圳市海勤科技有限公司 | A kind of meeting wisdom energy cooling fan method and its system |
| CN110134208A (en) * | 2019-04-08 | 2019-08-16 | 上海闻泰信息技术有限公司 | Rotation speed of the fan Automatic adjustment method, system and server |
| CN110557929A (en) * | 2019-07-31 | 2019-12-10 | 苏州浪潮智能科技有限公司 | whole cabinet server |
| CN110778516A (en) * | 2019-09-21 | 2020-02-11 | 深圳市奥拓电子股份有限公司 | Fan speed regulation method and device of display screen controller and storage medium |
| CN110778516B (en) * | 2019-09-21 | 2021-08-17 | 深圳市奥拓电子股份有限公司 | Fan speed regulation method and device of display screen controller and storage medium |
| CN113608604A (en) * | 2021-07-13 | 2021-11-05 | 华东计算技术研究所（中国电子科技集团公司第三十二研究所） | Loongson processor-based computer power management system, method, medium, and device |
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