篇一：SPEEDFAN实现CPU风扇转速自动调节设置方法
SPEEDFAN实现CPU风扇转速自动调节设置方法 风扇, SPEEDFAN, 自动调节, CPU, 转速
本帖最后由 F22 于 2010-9-6 17:32 编辑
先简单说说主板的风扇调速功能以及主板上的风扇接口。主板的风扇调速功能分为PWM模式bios里面去看。 式两种，不同品牌不同型号的主板采用不同的模式，也可能两种模式均支持，具体支持哪种模式得
所谓PWM模式，是指风扇的调速需要通过一根调速信号线实现，这种风扇即4pin接口（4p电源引出的D型口不是一回事）风扇。一般来说4pin风扇市面上比较难买到，它往往只搭配在原器上。而我们比较常见的还是3pin风扇，插在主板的3pin输出口上，只有支持DC调速模式的主风扇转速进行自动调节的前提就是主板支持以上两种模式中的任何一种。 对3pin风扇进行调速。不过绝大部分主板都采用PWM模式对CPU风扇进行调速。使用SPEEDFA
虽说大部分主板都对CPU风扇有自动调节功能，然而主板自带的调速功能往往不尽人意，比得噪声很大，或者希望能在玩游戏时开启风扇，不玩游戏时关闭风扇等。这时候就可以使用SPEED里的风扇自动控制功能，我也不是很确定，反正我是关了的。 软件来对CPU风扇进行更加个性化的控制。至于使用SPEEDFAN控制CPU风扇时候是否需要开启
我用的SPEEDFAN软件是4.38英文版。目前最新版是4.40版，但是4.40版在我的电脑上有些不如4.38版完美，所以我就拿4.38版做例子。SPEENFAN是一款非常独特的软件，它实现的功能设置好。英文有些吃力的朋友也可以下载汉化版。从4.38版开始，SPEEDFAN才开始支持win732操作系统。
运行speedfan，经过一阵子检测之后，出现界面： 面，但是设置却太过细致（有些不够人性化），以至于很多朋友以为这款软件没什么作用，其实原
点击“configure”进入选项菜单。我采用剥洋葱法由浅及深地进行设置，这样方便记忆，请朋往下看。J
第一个选项卡可以选择在软件的显示界面上显示哪些温度。我这里选择了显示TEMP1（主板加号的作用。
TEMP2（CPU温度）和HD0（第一个硬盘的温度）。注意到温度标识左边的加号了吗？我们等会再
注意：每个主板的TEMP1、TEMP2…代表的温度都不一样，朋友们要自己判断一下究竟自己的
里面哪个是主板温度，哪个是CPU温度了。要是弄错了哪个是CPU温度可就白忙活了。
第二个选项卡可以选择在软件界面上显示哪些风扇的转速，没什么其他的功能了（在这里共有显示FAN1（机箱风扇）和FAN2（CPU风扇）。
是因为该主板芯片最多可支持控制5个风扇的调速，不过主板厂商只给你两个风扇接口）。在这里
第三个选项卡可以选择在软件界面上显示哪些电压数值，不关心的朋友可以点掉它。
这里没什
第四个选项卡可以选择在软件界面上显示哪些风扇的转速，以及对这些转速进行控制，在这里SPEED01（机箱风扇）和SPEED02（CPU风扇）。这个选项卡有其他功能，我们待会再说。
第五个选项卡是关于软件的一些功能设置的，请朋友们按照我的设置点选即可。
第七个选项卡（第六个选项卡跳过不说了），风扇调速设置从现在正式开始！
咦？点开后是空白？不要急，在chip下拉菜单里找到你的控制芯片型号，出现这些选项就证将PWM1 MODE和PWM2 MODE都改为Software controlled（必须选择成Software controlled，将风的值为3M。（所有这些选项都对应有一个remember it，都要勾选上） SPEEDFAN控制，与主板的控制断开联系），并把右下角的remember it勾选上，最后确认PWMO
一旦软件出现某种错误，或者操作系统出现某种错误导致软件工作不正常，风扇的速度依然不控制，所以还是有一点点风险的。
接下来回到第一个设置选项卡
看到点击加号之后出现的扩展菜单了吗，里面可以选择某个温度对应哪些风扇的转速（实在是了…），这里我选择了TEMP1（我的主板温度）只和SPEED01（我的机箱风扇）有关，TEMP2（我全部去掉，否则会影响软件对风扇转速的判断。 度）只和SPEED02（我的CPU风扇）有关。其他的硬盘温度、核心温度、显卡温度等的扩展菜单
另外该选项卡下面还有一排设置，desired是指你期望的温度，这里我设置的是40度，即当T我的CPU温度）温度超过40度时，风扇才开始加速运转，低于40度则按照设定转速的最小值运转角的show in tray是将这个温度设置成在系统托盘显示，这里我让CPU温度显示在系统托盘里。 是警告温度，在这里当温度达到50度时风扇达到设定转速的最大值（关于“设定转速”请往下看
我的建议是，可以将期望温度值适当调高些，比如说CPU的安全工作温度在60度，不玩游戏下面再来到第四个选项卡。 度在48度左右，那么可以将期望温度值设定在51度，警告温度值设定在58度，这样的话既静音
篇二：利用SpeedFan来控制电脑风扇转速的方法
利用SpeedFan来控制电脑风扇转速的方法
1、把风扇控制模式该为软件控制
在“Advanced”的“chip”下拉菜单里找到控制芯片型号。点击“PWM1/2 MODE”，在下方的“Set To”中改为“Software controlled”，并把右侧的“remember it”勾选上，最后确认“PWMOUTCLOCK的值为3M”。所有这些选项都对应有一个re-member it，都要勾选上。
更改风扇控制模式
2、设置风扇调速温度点
接下来回到“Temperatures”，点击加号后出现扩展菜单，里面可以选择某个温度对应哪些风扇的转速，这里选择了TEMP1（主板温度）只和SPEED01（机箱风扇）有关，TEMP2（CPU温度）只和SPEED02（CPU风扇）有关。也就是我们要控制某个温度值，就选择与它对应的风扇。其他的硬盘、核心、显卡温度等的扩展菜单里的钩全去掉，否则会影响软件对转速的判断。下方的“desired”设定一个温度值，风扇会在达到这个温度后才加速运转。
3、设置风扇转速
“Automatically variated”一定要勾选上，否则软件不会对该转速进行自动调整。注意有的风扇在低于某个转速时，比如35%，
就会停转。所以建议用户先手动调节转速，找到自己风扇的最低值之后再设置。最后回到软件主界面上，把“Automatic fanspeed”钩打上，整个操作就此完成。
设置风扇转速
利用软件对风扇进行自动调速，让其根据温度的变化来调整风扇转速，这样的功能其实不少软件都具备，但从兼容性、实际使用效果来看，还是SpeedFan这款软件最为合适。甚至有玩家声称“暴力扇+SpeedFan才是风冷的终极之道”。其效力可见一斑。
篇三：智能风扇调速系统的设计
本 科 毕 业 论 文
智能风扇调速系统的设计
Design of Intelligent Control System for Fans
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毕业设计（论文）原创性声明和使用授权说明
原创性声明
本人郑重承诺：所呈交的毕业设计（论文），是我个人在指导教师的指导下进行的研究工作及取得的成果。尽我所知，除文中特别加以标注和致谢的地方外，不包含其他人或组织已经发表或公布过的研究成果，也不包含我为获得安阳工学院及其它教育机构的学位或学历而使用过的材料。对本研究提供过帮助和做出过贡献的个人或集体，均已在文中作了明确的说明并表示了谢意。
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本人完全了解安阳工学院关于收集、保存、使用毕业设计（论文）的规定，即：按照学校要求提交毕业设计（论文）的印刷本和电子版本；学校有权保存毕业设计（论文）的印刷本和电子版，并提供目录检索与阅览服务；学校可以采用影印、缩印、数字化或其它复制手段保存论文；在不以赢利为目的前提下，学校可以公布论文的部分或全部内容。
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目 录
摘要 ··············································································································I Abstract ······································································································· II 引言 ··································· 1
第一章 绪论 ································································································ 1
1.1 智能风扇控制系统概述 ·········································································· 2
1.2 设计任务和主要内容 ············································································· 2
1.3.1 系统框图 ·························································································· 4
1.3.2 系统功能描述 ·························································· 错误！未定义书签。
第二章 方案论证 ························································································· 4
2.1 系统总体设计 ······················································································ 4
2.1.1 系统框图 ·························································································· 4
2.2 温度传感器的选择 ················································································ 4
2.3 控制核心的选择 ··················································································· 5
2.4 显示电路 ···························································································· 6
2.5 调速方式 ···························································································· 6
第三章 硬件设计 ························································································· 7
3.1 主要元器件介绍 ··················································································· 7
3.1.1 AT89S51单片机简介 ············································································ 7
3.1.2 DS18B20数字温度传感器简介 ······························································· 9
3.1.3 八段LED数码管简介 ········································································ 11
3.2 电路设计 ·························································································· 12
3.2.1 开关复位与晶振电路 ········································································· 12
3.2.2 独立按键连接电路 ············································································ 13
3.2.3 数码管显示电路 ··············································································· 13
3.2.4 温度采集电路 ·················································································· 14 I
3.2.5 风扇驱动与调速电路 ········································································· 16
3.2.6 电路总图 ························································································ 16
第四章 软件设计 ························································································· 18
4.1 系统软件总体设计 ·············································································· 18
4.2 数字温度传感器模块和显示子模块的设计 ················································ 18
4.3 电机控制模块设计 ·············································································· 19
4.4 系统功能描述 ···················································································· 20
第五章 系统调试 ······················································································· 21
5.1 软件调试 ························································································· 21
5.1.1 按键显示部分的调试 ········································································ 21
5.1.2 传感器DS18B20温度采集部分的调试 ················································· 21
5.2 硬件调试 ························································································· 22
5.2.1 按钮显示部分的调试 ········································································ 22
5.2.2 传感器DS18B20温度采集部分的调试 ················································· 22
5.3 调试过程中遇到的问题及其解决方法 ······················································ 22 结论 ··········································································································· 24 致谢 ··········································································································· 25 参考文献 ··································································································· 25 附录 ··········································································································· 27
附录A 电路仿真图 ·················································································· 27 附录B 电路PCB图 ················································································· 28 附录C 程序清单 ····················································································· 36 附录D 实物图 ························································································ 29
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《风扇转速软件》
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