CN104154020B - A kind of method for designing of intelligent control server start-up noises - Google Patents
A kind of method for designing of intelligent control server start-up noises Download PDFInfo
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- CN104154020B CN104154020B CN201410396286.XA CN201410396286A CN104154020B CN 104154020 B CN104154020 B CN 104154020B CN 201410396286 A CN201410396286 A CN 201410396286A CN 104154020 B CN104154020 B CN 104154020B
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000005855 radiation Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
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- Control Of Positive-Displacement Air Blowers (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention provides the method for designing of a kind of intelligent control server start-up noises, belongs to control server start-up noises field, and the present invention, when the controller controlling rotation speed of the fan does not the most run, utilizes CPLD to send pwm signal and participates in fan speed-regulating.After fan governor normally works, fan debugging control power is given fan governor by CPLD.The CPLD being used on server controlling to start shooting sequential is used to realize controlling server start-up noises, the most adjustable, there is cost advantage.
Description
Technical field
The method that the present invention relates to control server start-up noises, specifically a kind of intelligent control server start is made an uproar
The method for designing of sound.
Background technology
Integrated level now with server is more and more higher, universal makes as blade server and 1U server etc. are substantial amounts of
With, the heat radiation of server is paid much attention to by manufacturer and user, and fan plays the biggest work in the cooling system of server
With.Fan as used by server CPU, cabinet, video card and power supply etc. is the defender of server normal table work, therefore,
Choose one of the necessary requirement that server fan is settlement server heat radiation.
Owing to the frequency of the CPU of server use is the highest, that have or dual processors or multi-CPU, add high-revolving
SCSI hard disk and large power supply, the heat that these parts send is the biggest, therefore air quickly heating.Can be the most effective
It will be the precondition of server steady operation that these hot-airs are discharged on ground.
The effect of server fan is to speed up the flowing velocity of fin surface air, to improve the heat of fin and air
Exchange velocity.Fan is as one of the two big vitals of air-cooled radiator, and the quality of its performance is often to server radiating
Device effect and service life play certain decisive role.
Server controls rotation speed of the fan is typically by two ways, band control and band outer control.Band control refers to depend on
To send instruction to fan governor by system self (PCH) and adjust rotation speed of the fan, internal memory, IO that in reality, server hangs over set
Too many for waiting, start generally requires time a few minutes now system and cannot adjust rotation speed of the fan.Band outer control refers to rely on
Outside monitoring system controls rotation speed of the fan, such as BMC can as fan debugging control device, but BMC often started shooting
Journey is also required to the time of similar about one minute.Initializing during this period of time to reduce two kinds of control modes of band and out-of-band
The risk that uncontrollable fan brings, fan control signal is often carried out pull-up process by server system producer, makes fan complete
Speed operating, also brings the increase of noise in start process.
Summary of the invention
In order to idea tries to reduce this VGA CARD, the present invention provides a kind of intelligent control server start-up noises
Method for designing, uses the CPLD being used on server controlling to start shooting sequential to realize controlling server start-up noises, the most adjustable,
There is cost advantage.
The present invention is before system is also not keyed up, and namely PCH or BMC has initialized and make use of server master before
The CPLD of control sequential conventional on plate participates in fan speed-regulating.The ready letter that the initialization of instruction PCH or BMC chip completes
Number (SYS_RDY) is connected on the GPIO of CPLD, and the fan governor that CPLD output pwm signal controls with PCH or BMC is (integrated
Inside PCH or BMC) fan control signal (FAN_CTL) that exports be connected to door do with logic after output signal control wind
Fan rotating speed.
1) before PCH or BMC has initialized, the uncontrollable fan governor of PCH or BMC, the FAN_CTL letter of output
Number by outside pull-up Automatic level control, output be high level always；Now add and do not have the pwm signal of CPLD, then rotation speed of the fan is
Full-speed operation；The SYS_RDY signal that PCH and BMC is sent simultaneously is the most uncontrollable, and by outside pull-up Automatic level control, output is also
It it is the most non-high level；CPLD receives SYS_RDY when being high level, it is believed that PCH and BMC also no initializtion completes, the most defeated
Go out pwm signal and FAN_CTL do with logic after controlling fan in certain rotating speed, reduce server VGA CARD.
2) after PCH or BMC has initialized, SYS_RDY signal is dragged down notice within the very first time by PCH or BMC
CPLD system and start and rotation speed of the fan can be controlled, CPLD will stop pwm signal export, change high level output into, now
Rotation speed of the fan controls to be controlled by the pwm signal of PCH or BMC output.
3) when the fixing PWM waveform of CPLD output, need fully test, find the optimum of noise and heat radiation, can not
Noise is excessive can not have influence on again heat radiation.
The invention has the beneficial effects as follows:
The present invention makes full use of the conventional CPLD of sequential that controls on mainboard, to participate in fan speed-regulating, neither increases cost, again
Start-up noises can be controlled, also do not interfere with heat radiation；
Both the mood of user had not been interfered with, moreover it is possible to avoid server to produce resonance, it is to avoid other parts of server are made
Become infringement.
Accompanying drawing explanation
According to Figure of description, the present invention is described further,
Accompanying drawing 1 is connection schematic diagram；
Accompanying drawing 2 be PCH or BMC initialized before fan speed-regulating figure；
Accompanying drawing 3 be PCH or BMC initialized after fan speed-regulating figure.
Detailed description of the invention
In order to reduce this VGA CARD, the present invention use on server for control start shooting sequential CPLD realize control
Control server start-up noises, when the controller controlling rotation speed of the fan does not the most run, utilizes CPLD to send pwm signal and participates in wind
Fan speed governing.After fan governor normally works, fan debugging control power is given fan governor by CPLD.
The present invention is before system is also not keyed up, and namely PCH or BMC has initialized and make use of server master before
The CPLD of control sequential conventional on plate participates in fan speed-regulating.As it is shown in figure 1, the initialization of instruction PCH or BMC chip completes
Ready signal (SYS_RDY) be connected on the GPIO of CPLD, the fan control that CPLD output pwm signal and PCH or BMC control
The fan control signal (FAN_CTL) that device processed (being integrated in inside PCH or BMC) exports is connected to do with door export letter after logic
Number control rotation speed of the fan.
As in figure 2 it is shown, before PCH or BMC has initialized, the uncontrollable fan governor of PCH or BMC, output
FAN_CTL signal is by outside pull-up Automatic level control, and output is high level always.Now add and there is no the pwm signal of CPLD, then wind
Fan rotating speed is full-speed operation.The SYS_RDY signal that PCH and BMC is sent simultaneously is the most uncontrollable, by outside pull-up level control
System, output is also the most non-high level.
CPLD receives SYS_RDY when being high level, it is believed that PCH and BMC also no initializtion completes, the most immediately output PWM letter
Number with FAN_CTL do with logic after controlling fan in certain rotating speed, reduce server VGA CARD.
As it is shown on figure 3, after PCH or BMC has initialized, PCH or BMC within the very first time by SYS_RDY signal
Dragging down notice CPLD system and start and can control rotation speed of the fan, CPLD will stop pwm signal output, change high level into defeated
Going out, now rotation speed of the fan controls to be controlled by the pwm signal of PCH or BMC output.
When the fixing PWM waveform of CPLD output, need fully test, find the optimum of noise and heat radiation, can not make an uproar
Sound is excessive can not have influence on again heat radiation.
The present invention makes full use of the conventional CPLD of sequential that controls on mainboard, to participate in fan speed-regulating, neither increases cost, again
Start-up noises can be controlled, there is good commercial value.
Claims (2)
1. the method for designing of an intelligent control server start-up noises, it is characterised in that
When the controller controlling rotation speed of the fan does not the most run, utilize CPLD to send pwm signal and participate in fan speed-regulating；Work as fan
After controller normally works, fan debugging control power is given fan governor by CPLD；Before system is also not keyed up, namely
PCH or BMC has initialized and make use of the CPLD of control sequential conventional on server master board to participate in fan speed-regulating before；Refer to
Show that the ready that the initialization of PCH or BMC chip completes is signally attached on the GPIO of CPLD, CPLD output pwm signal and PCH
Or BMC control fan governor output fan control signal be connected to door do with logic after output signal control fan turn
Speed.
Method the most according to claim 1, it is characterised in that；
1) before PCH or BMC has initialized, the uncontrollable fan governor of PCH or BMC, the FAN_CTL signal of output is subject to
Outside pull-up Automatic level control, output is high level always；Now were it not for the pwm signal of CPLD, then rotation speed of the fan is at full speed
Operating；The SYS_RDY signal that PCH and BMC is sent simultaneously is the most uncontrollable, and by outside pull-up Automatic level control, output is also one
Straight is high level；CPLD receives SYS_RDY when being high level, it is believed that PCH and BMC also no initializtion completes, and exports PWM the most immediately
Signal and FAN_CTL do with logic after controlling fan in certain rotating speed, reduce server VGA CARD；
2) after PCH or BMC has initialized, SYS_RDY signal is dragged down notice CPLD within the very first time by PCH or BMC
System and start and rotation speed of the fan can be controlled, CPLD will stop pwm signal export, change high level output into, now fan
Rotating speed controls to be controlled by the pwm signal of PCH or BMC output；
3) when the fixing PWM waveform of CPLD output, need fully test, find the optimum of noise and heat radiation, can not noise
Excessive can not have influence on again heat radiation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410396286.XA CN104154020B (en) | 2014-08-13 | 2014-08-13 | A kind of method for designing of intelligent control server start-up noises |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410396286.XA CN104154020B (en) | 2014-08-13 | 2014-08-13 | A kind of method for designing of intelligent control server start-up noises |
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| Publication Number | Publication Date |
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| CN104154020A CN104154020A (en) | 2014-11-19 |
| CN104154020B true CN104154020B (en) | 2016-08-31 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105224049B (en) * | 2015-09-24 | 2018-10-09 | 浪潮电子信息产业股份有限公司 | Method for preventing overheating of server system after BMC failure |
| CN106455416A (en) * | 2016-08-29 | 2017-02-22 | 安徽皖通邮电股份有限公司 | Device for controlling electronic device fun starting noise |
| WO2018152762A1 (en) * | 2017-02-24 | 2018-08-30 | 华为技术有限公司 | Terminal radiator device and noise control method |
| CN107191406B (en) * | 2017-07-26 | 2019-07-26 | 郑州云海信息技术有限公司 | A kind of system and method for start process reducing fan noise sound |
| CN107943623A (en) * | 2017-12-13 | 2018-04-20 | 郑州云海信息技术有限公司 | A kind of storage system |
| CN109882439B (en) * | 2019-03-19 | 2021-04-20 | 浪潮商用机器有限公司 | Fan control system, method and server |
| CN110043498B (en) * | 2019-04-11 | 2021-03-12 | 苏州浪潮智能科技有限公司 | Server fan rotating speed regulating and controlling device, method and system |
| CN110107523B (en) * | 2019-05-13 | 2020-09-04 | 苏州浪潮智能科技有限公司 | Fan control board card based on DSP coprocessing |
| CN113090567B (en) * | 2021-03-04 | 2022-11-25 | 山东英信计算机技术有限公司 | Fan rotating speed adjusting device and method |
| CN113048090B (en) * | 2021-03-12 | 2023-02-28 | 山东英信计算机技术有限公司 | Fan rotating speed control method and system |
| CN114412817A (en) * | 2021-12-22 | 2022-04-29 | 北京星网锐捷网络技术有限公司 | Fan control circuit and method and cloud terminal equipment |
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| CN104154020A (en) | 2014-11-19 |
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